| drosophila melanogaster selection for survival of bacillus cereus infection: life history trait indirect responses. | to study evolved resistance/tolerance in an insect model, we carried out an experimental evolution study using d. melanogaster and the opportunistic pathogen b. cereus as the agent of selection. the selected lines evolved a 3.0- to 3.3-log increase in the concentration of spores required for 50% mortality after 18-24 generations of selection. in the absence of any treatment, selected lines evolved an increase in egg production and delayed development time. the latter response could be interprete ... | 2012 | 23094195 |
| chromosome-directed pcr-based detection and quantification of bacillus cereus group members with focus on b. thuringiensis serovar israelensis active against nematoceran larvae. | bacillus thuringiensis serovar israelensis is a wide-spread soil bacterium affiliated with the b. cereus group (bcg) and is widely used in biocontrol products applied against mosquito and black fly larvae. for monitoring and quantification of applied b. thuringiensis serovar israelensis and its effect on indigenous b. thuringiensis serovar israelensis and bcg assemblages, efficient and reliable tools are essential. the abundance and properties of b. thuringiensis serovar israelensis strains in t ... | 2015 | 25979887 |
| a novel multiplex pcr discriminates bacillus anthracis and its genetically related strains from other bacillus cereus group species. | anthrax is an important zoonotic disease worldwide that is caused by bacillus anthracis, a spore-forming pathogenic bacterium. a rapid and sensitive method to detect b. anthracis is important for anthrax risk management and control in animal cases to address public health issues. however, it has recently become difficult to identify b. anthracis by using previously reported molecular-based methods because of the emergence of b. cereus, which causes severe extra-intestinal infection, as well as t ... | 2015 | 25774512 |
| feces derived allergens of tyrophagus putrescentiae reared on dried dog food and evidence of the strong nutritional interaction between the mite and bacillus cereus producing protease bacillolysins and exo-chitinases. | tyrophagus putrescentiae (schrank, 1781) is an emerging source of allergens in stored products and homes. feces proteases are the major allergens of astigmatid mites (acari: acaridida). in addition, the mites are carriers of microorganisms and microbial adjuvant compounds that stimulate innate signaling pathways. we sought to analyze the mite feces proteome, proteolytic activities, and mite-bacterial interaction in dry dog food (ddf). proteomic methods comprising enzymatic and zymographic analys ... | 2016 | 26941650 |
| a cluster of bacillus cereus bacteremia cases among injection drug users. | bacillus cereus is a ubiquitous spore-forming organism that is infrequently implicated in extraintestinal infections. the authors report three cases of b cereus bacteremia among injection drug users presenting within one month to an urban tertiary care hospital. treatment with intravenous vancomycin was successful in all three cases. while temporal association suggested an outbreak, molecular studies of patient isolates using pulsed-field gel electrophoresis did not suggest a common source. a re ... | 2015 | 26015795 |
| intravenous drug abuse by patients inside the hospital: a cause for sustained bacteremia. | patients with history of intravenous drug abuse are noted to be at risk of several infections including hiv, endocarditis, and other opportunistic infections. we report the case of a patient with sustained bacillus cereus bacteremia despite use of multiple antibiotic regimens during his inpatient stay. our case highlights the importance of high suspicion for active drug use inside the hospital in such patients. this is important in order to minimize unnecessary diagnostic workup and provide adeq ... | 2016 | 27433362 |
| antimicrobial and anti-inflammatory activities of pleurostylia capensis turcz (loes) (celastraceae). | pleurostylia capensis is a large tree that can reach the maximum height of 20 m long, and it have been traditionally used as cosmetic, for steam bath, ritual body wash, and as a purgative to treat symptoms of witchcraft. using ethanol, chloroform, dichloromethane (dcm), ethyl acetate (ea), and water extracts, leaves, bark and roots of pleurostylia capensis were investigated scientifically for their effectiveness in antimicrobial, antioxidant and anti-inflammatory activities using standard method ... | 2014 | 25435632 |
| antimicrobial activity of the mycotoxin citrinin obtained from the fungus penicillium citrinum. | the mycotoxin citrinin was obtained from the fungus penicillium citrinum. it was tested for it's minimum inhibitory concentration (mic) against some gram positive strains viz. staphylococcus aureus, bacillus pumilus, bacillus subtillis, bacillus cereus, klebsiella pneumoniae, streptococcus pneumoniae, lactobacillus arabinosus and gram negative strains e.coli, shigella dysenteriae, shigella sonnei, shigella boydii, salmonella typhimurium, proteus mirabilis and vibrio cholerae. further the zones o ... | 2002 | 22557053 |
| antimicrobial action of the leaf extract of lagerstroemia parviflora roxb. | the benzene extract of the leaves of lagerstroemia paviflora roxb was tested for its minimum inhibitory concentration (mic) against gram positive staphylococcus aureus, bacillus subtilis, bacillus cereus, klebsiella pneumoniae, streptococcus pneumoniae, lactobacillus arabinosus and gram negative strains e.coli, shigella dysenteriae, shigella sonnei, shigella boydii, salmonella typhimurium, proteus mirabilis and vibrio cholerae. further the zones of inhibition produced by the crude extract agains ... | 2002 | 22557054 |
| phytochemical and antimicrobial studies of extracts of solanum xanthocarpum. | antibacterial activity pf various parts (stem, leaf and fruits) of solvent extracts (petroleum ether, alcohol and acetone) of solanum xanthocarpum against escherichia coli, klebsiella pneumoniae, salmonella typhi and bacillus cereus were detected by zone of inhibition. the extracts of solanum xanthocarpum showed high sensitivity to kiebsiella pneumoniae and salmonella typhi, moderate sensitivity to escherichia coli and less sensitivity and resistant to bacillus cereus. in control, there is no in ... | 2003 | 22557117 |
| microbial diversity and biochemical characteristics of borassus akeassii wine. | palm wine produced traditionally and consumed by many people in the south-west of burkina faso is subject to alteration. in this study, we carried out a follow-up of two palm wines' fermentation during the 10 days in which palm wines are classically produced and consumed. we monitored biochemical characteristics of fermenting wines as well as followed the microflora kinetics using culture-dependent and culture-independent methods. the analysis of the acid content and the bacterial population rev ... | 2016 | 27450560 |
| phytosynthesis of silver nanoparticles using artemisia marschalliana sprengel aerial part extract and assessment of their antioxidant, anticancer, and antibacterial properties. | a rapid phytosynthesis of silver nanoparticles (agnps) using an extract from the aerial parts of artemisia marschalliana sprengel was investigated in this study. the synthesized agnps using a. marschalliana extract was analyzed by uv-visible spectroscopy, x-ray diffraction, and fourier transform infrared spectroscopy and further characterized by transmission electron microscopy, scanning electron microscopy, zeta potential, and energy-dispersive spectroscopy. characteristic absorption bands of a ... | 2016 | 27199558 |
| survey of the antibiofilm and antimicrobial effects of zingiber officinale (in vitro study). | candidiasis is one of the most prevalent and important opportunistic fungal infections of the oral cavity caused by candida yeast species like candida albicans, c. glabrata, and c. krusei. in addition, several bacteria can cause oral infections. the inhibition of microbial biofilm is the best way to prevent oral infections. | 2016 | 27127591 |
| chemical constituents and antimicrobial properties of the essential oil and ethanol extract from the stem of aglaia odorata lour. | the stem-derived essential oil of aglaia odorata lour. was obtained by hydrodistillation using a clevenger-type system. gas chromatography-mass spectrometry analysis of the oil revealed the identification of 39 compounds, representing 76.4% of the oil; germacrene d (20.3%), α-humulene (17.1%), α-himachalene (12.7%) and β-caryophyllene (10.2%) were the major components. ar-turmerone (1) and eichlerialactone (2) were isolated from the stem oil and ethanolic stem extract of this plant species, resp ... | 2014 | 24934340 |
| role of the moth fly clogmia albipunctata (diptera: psychodinae) as a mechanical vector of bacterial pathogens in german hospitals. | the formerly mediterranean moth fly species clogmia albipunctata (diptera: psychodidae) is now present in germany, where it has become a common, year-round pest in hospital buildings. | 2013 | 23182212 |
| a comparative study of the bactericidal activity and daily disinfection housekeeping surfaces by a new portable pulsed uv radiation device. | daily cleaning and disinfecting of non-critical surfaces in the patient-care areas are known to reduce the occurrence of health care-associated infections. however, the conventional means for decontamination of housekeeping surfaces of sites of frequent hand contact such as manual disinfection using ethanol wipes are laborious and time-consuming in daily practice. this study evaluated a newly developed portable pulsed ultraviolet (uv) radiation device for its bactericidal activity in comparison ... | 2012 | 22447288 |
| new heterocyclic compounds from 1,2,4-triazole and 1,3,4-thiadiazole class bearing diphenylsulfone moieties. synthesis, characterization and antimicrobial activity evaluation. | some new 5-(4-(4-x-phenylsulfonyl)phenyl)-4-(r)-2h-1,2,4-triazol-3(4h)-thiones 4a,b; 5a,b and 5-(4-(4-x-phenylsulfonyl)phenyl)-n-(r)-1,3,4-thiadiazol-2-amines 6a,b; 7a,b were obtained by cyclization of new n(1)-[4-(4-x-phenylsulfonyl)benzoyl]-n(4)-(r)-thiosemicarbazides 2a,b; 3a,b (x=h, br). the 1,2,4-triazoles were synthesized by intramolecular cyclization of acylthiosemicarbazides, in basic media. on the other hand, 1,3,4-thiadiazoles were obtained from same acylthiosemicarbazides, in acidic m ... | 2012 | 22309915 |
| bacteria present in comadia redtenbacheri larvae (lepidoptera: cossidae). | the external and internal culturable bacterial community present in the larvae of comadia redtenbacheri hammerschmidt, an edible insect, was studied. characterization of the isolates determined the existence of 18 morphotypes and phylogenetic analysis of the 16s rrna gene revealed the existence of paenibacillus sp., bacillus safensis, pseudomonas sp., bacillus pseudomycoides, corynebacterium variabile, enterococcus sp., gordonia sp., acinetobacter calcoaceticus, arthrobacter sp., micrococcus sp. ... | 2015 | 26336239 |
| arsenite oxidizing multiple metal resistant bacteria isolated from industrial effluent: their potential use in wastewater treatment. | arsenite oxidizing bacteria, isolated from industrial wastewater, showed high resistance against arsenite (40 mm) and other heavy metals (10 mm pb; 8 mm cd; 6 mm cr; 10 mm cu and 26.6 mm as(5+)). bacterial isolates were characterized, on the basis of morphological, biochemical and 16s rrna ribotyping, as bacillus cereus (1.1s) and acinetobacter junii (1.3s). the optimum temperature and ph for the growth of both strains were found to be 37 °c and 7. both the strains showed maximum growth after 24 ... | 2016 | 27339314 |
| antimicrobial resistance and plasmid profile of bacterial strains isolated from the urbanized eltsovka-1 river (russia). | antimicrobial resistance and plasmid profile of gram-positive and gram-negative bacterial strains isolated from the urbanized eltsovka-1 river (russia) were investigated. sequencing of the 16s rrna of of g+ strains showed 99-100% identity to that of bacillus aerophilus, bacillus altitudinis, bacillus amyloliquefaciens, bacillus anthrancis, bacillus barbaricus, bacillus cereus, bacillus flexus, bacillus indriensis, bacillus stratosphericus, bacillus subtilis subsp. subtilis, bacillus thuringiensi ... | 2015 | 25803299 |
| leveraging the attributes of mucor hiemalis-derived silver nanoparticles for a synergistic broad-spectrum antimicrobial platform. | driven by the need to engineer robust surface coatings for medical devices to prevent infection and sepsis, incorporation of nanoparticles has surfaced as a promising avenue to enhance non-fouling efficacy. microbial synthesis of such nanoscale metallic structures is of substantive interest as this can offer an eco-friendly, cost-effective, and sustainable route for further development. here we present a mucor hiemalis-derived fungal route for synthesis of silver nanoparticles, which display sig ... | 2016 | 28018316 |
| pathogenic features of heterotrophic plate count bacteria from drinking-water boreholes. | evidence suggests that heterotrophic plate count (hpc) bacteria may be hazardous to humans with weakened health. we investigated the pathogenic potential of hpc bacteria from untreated borehole water, consumed by humans, for: their haemolytic properties, the production of extracellular enzymes such as dnase, proteinase, lipase, lecithinase, hyaluronidase and chondroitinase, the effect simulated gastric fluid has on their survival, as well as the bacteria's antibiotic-susceptible profile. hutu-80 ... | 2016 | 27959868 |
| molecular characteristics of lysozyme g in euryglossa orientalis; cdna cloning, phylogenic analysis, physicochemical properties and tissue gene expression. | lysozymes are the key molecules of innate immune system against bacterial infections. in the present study, we identified the molecular characteristics, physicochemical properties, antibacterial activity, evolutionary relationship and tissue expression pattern of g-type lysozyme in euryglossa orientalis (euor lysg). the full-length euor lysg cdna is composed of 588 nucleotides and an open reading frame encoding a protein with 195 amino acids with more than 65 % identity to g-type lysozyme of sol ... | 2016 | 27393386 |
| antimicrobial activity of neo-clerodane diterpenoids isolated from lamiaceae species against pathogenic and food spoilage microorganisms. | antimicrobial activity of nineteen neo-clerodane diterpenoids, isolated from the acetone extracts of the aerial parts of scutellaria and salvia species (lamiaceae) were tested against thirteen strains belonging to nine different species of pathogenic and food spoilage bacteria aeromonas hydrophila, bacillus cereus, escherichia coli, listeria monocytogenes, proteus vulgaris, pseudomonas aeruginosa, pseudomonas fluorescens, salmonella abony and staphylococcus aureus as well as against two yeast st ... | 2015 | 26749799 |
| binary interactions of antagonistic bacteria with candida albicans under aerobic and anaerobic conditions. | we used both aerobic and anaerobic liquid co-cultures, prepared with luria bertani broth, to study the effect of bacteria on the survival of candida albicans in the external environment, away from an animal host. the bacteria were represented by aeromonas hydrophila, bacillus cereus, bacillus subtilis, clostridium, enterobacter, klebsiella pneumoniae, kluyvera ascorbata and serratia marcescens. under aerobic conditions, the yeast's growth was inhibited in the presence of bacterial growth; howeve ... | 2016 | 26566932 |
| [evaluation of endoscopy assisted vitrectomy for the treatment of severe traumatic eyes with no light perception]. | to evaluate the effect of endoscopy assisted pars plana vitrectomy for severe ocular trauma with no light perception. | 2014 | 24841815 |
| plant-based hydrocarbon esters from tragia involucrata possess antimicrobial and anti-inflammatory activities. | antimicrobial and anti-inflammatory activities of hydrocarbon esters obtained from tragia involucrata were evaluated by disk-diffusion (250 µg/ml), and broth-dilution (500-7.8 µg/ml), methods against bacteria. among the compounds, shellsol showed the most potent activity against burkholderia pseudomallei (khw), aeromonas hydrophila, staphylococcus aureus, bacillus subtilis, streptococcus pyogenes, klebsiella pneumoniae, proteus mirabilis, and streptococcus pneumoniae. interestingly, vinyl hexyle ... | 2013 | 23713670 |
| antimicrobial activity of bioactive compounds and leaf extracts in jatropha tanjorensis. | jatropha tanjorensis was investigated scientifically to generate evidence for the efficacies reported in traditional systems and the results are given here. | 2012 | 22884742 |
| screening of microorganisms from deep-sea mud for antarctic krill (euphausia superba) fermentation and evaluation of the bioactive compounds. | twelve kinds of strains were isolated from deep-sea mud which can use antarctic krill powder as the sole carbon/nitrogen source. these strains were identified by 16s rdna sequence analysis and grouped into eight different genera, including bacillus, shewanella, psychrobacter, klebsiella, macrococcus, aeromonas, acinetobacter, and saccharomyces. after fermentation of antarctic krill powder using these strains, bioactive compounds including total phenolics, free amino acids, and enzyme activities ... | 2015 | 25416479 |
| [preliminary analyses on bacterial diversity and resistance in infection-related skin disorders]. | to explore the bacterial diversity and resistance in infection-related skin disorders. | 2015 | 26704163 |
| microbiological stability of canned tuna produced in italy and in non-european countries. | the results of a study on the microbiological stability of canned tuna produced by italian companies and similar canned products manufactured in countries outside europe are reported herein. the study involved 38 samples of canned tuna of various brands, of which 14 were produced by companies outside europe and 24 by italian companies. qualitative and quantitative microbiological tests were conducted for the following parameters: bacterial colony counts at 30°c, total coliforms, total enterobact ... | 2015 | 27800383 |
| [synthesis and antimicrobial ivestigation of 8-quinolinols glucosaminides]. | in the phase transfer system solid calcium carbonate--acetonitrile per acetylated o-beta-d-glucosaminides of 8-quinolinol, 2-methyl-8-quinolinol and 5-chloro-8-quinolinol were synthesized. zemplen deacetylation was led to corresponding trioles. obtained o-beta-d-glucosaminides were identified with 1h-nmr spectroscopy. antimicrobial activity of deacetylated forms has been studied in a test of inhibition of bioluminescence of marine luminescent bacteria vibrio fischeri f1 and method of the serial ... | 2013 | 23189563 |
| antibiotic-resistant heterotrophic plate count bacteria and amoeba-resistant bacteria in aquifers of the mooi river, north west province, south africa. | groundwater in the mooi river catchment is prone to mining, agricultural, municipal and septic tank pollution. in this study physico-chemical and microbiological parameters were determined using appropriate methods. bacterial isolates were identified by 16s rrna sequencing (heterotrophic plate count (hpc) bacteria and amoeba-resistant bacteria (arb)) and multiplex polymerase chain reaction (escherichia coli). antibiotic resistance tests were also performed. physico-chemical parameters were gener ... | 2014 | 25473993 |
| antibacterial, antifungal, phytotoxic, antioxidant and hemagglutination activities of organic fractions of arisaema tortuosum. | in the current study, the antimicrobial, phytotoxic, haemagglutination and antioxidant potential of crude methanolic extract (crd. meoh ext.) and four organic fractions of arisaema tortuosum was investigated. all fractions have been screened for antimicrobial properties against eight bacterial pathogens and six fungal pathogens using agar well diffusion and tube dilution method, respectively. furthermore, the organic fractions were also screened for its phytotoxicity against lemna minor. haemagg ... | 2016 | 27166544 |
| ethanolic extract of nigella sativa protects fe(ii) induced lipid peroxidation in rat's brain, kidney and liver homogenates. | the study describes the effect of ethanolic extract of nigella sativa against fe(ii) induced lipid peroxidation. basal and fe(ii) induced thiobarbituric acid reactive species (tbars) production was significantly inhibited by the ethanolic extract of nigella sativa at 25-200 μg/ml. our data revealed that the extract has high dpph radical scavenging activity at highest tested concentrations. the extract significantly chelated fe(ii) and scavenged hydroxyl (oh) radical at 25-200μg/ml concentration. ... | 2016 | 26826815 |
| [screening probiotic endophytic bacteria from medicinal plant flex cornuta and the phytopathogen-inhibiting effect]. | culturable endophytic bacteria were isolated from medicinal plant ilex cornuta by plate-spreading method, strains with strong inhibitory effect on phytopathogen were screened by confrontation culture and fermentation filtrate culture methods, and the morphological changes of phytopathogen hyphae treated with endophytic bacteria were examined by microscopy and micrograph. their phylogenetic relationships were determined by homology analysis of the 16s rdna sequences of pcr products and the taxono ... | 2015 | 26571677 |
| characterization of films based on chitosan lactate and its blends with oxidized starch and gelatin. | minimal inhibitory concentration (mic) of chitosan lactate (chl) was tested against bacteria and phytopathogenic fungi. then, the structural, physicochemical and antimicrobial properties of films based on chl, oxidized potato starch (ops), and gelatin (gel) were investigated. with the exception of rhizopus nigricans, chl was effective against the target organisms. gram-positive bacteria (staphylococcus aureus and bacillus cereus) were more sensitive to chl than gram-negative bacteria (pectobacte ... | 2015 | 25841370 |
| antibacterial, antifungal and antioxidant activities of honey collected from timergara (dir, pakistan). | in this study honeys of acacia modesta, prunus persica, zizyphus sativa and isodon rogosus plants were tested against two gram-positive bacterial strains (staphylococcus aureus and bacillus cereus), two gram-negative bacterial strains (klebsilla pneumonia and escherichia coli) and two fungal strains (alternaria alternata and trichoderma harzianum) through agar well diffusion method. the tested honeys showed high antimicrobial activities to the tested bacterial and fungal strains. all the tested ... | 2014 | 24374434 |
| endophytic bacteria from pinellia ternata, a new source of purine alkaloids and bacterial manure. | pinellia ternata (thunb.) berit., a perennial herb belonging to araceae, is one of the few medicinal plants to produce purine alkaloids. it is speculated that endophytic bacteria from p. ternata may produce guanosine or inosine. however, there is no report about endophytic bacteria in p. ternata. | 2015 | 25868618 |
| secondary metabolites: applications on cultural heritage. | biological sciences and related bio-technology play a very important role in research projects concerning protection and preservation of cultural heritage for future generations. in this work secondary metabolites of burkholderia gladioli pv. agaricicola (bga) icmp 11096 strain and crude extract of glycoalkaloids from solanaceae plants, were tested against a panel of microorganisms isolated from calcarenite stones of two historical bridges located in potenza and in campomaggiore (southern italy) ... | 2013 | 25145230 |
| isolation & identification of bacteria for the treatment of brown crab (cancer pagurus) waste to produce chitinous material. | to isolate bacteria from soil for microbial pretreatment of brown crab (cancer pagurus) shell waste and the production of chitin. | 2015 | 25644656 |
| synthesis and in vitro antimicrobial evaluation of piperazine substituted quinazoline-based thiourea/thiazolidinone/chalcone hybrids. | in frames of the search for new biological entities to fight against recent drug-resistant microbial strains, we report a library of quinazoline-based thiourea/4-thiazolidinone/chalcone hybrids. the newly synthesized compounds were studied for efficacy against several bacteria (staphylococcus aureus, bacillus cereus, pseudomonas aeruginosa, and klebsiella pneumoniae) and fungi (candida albicans and aspergillus clavatus) using the broth dilution technique. from the biological evaluation, (e)-3-(3 ... | 2015 | 26165131 |
| diversity of food-borne bacillus volatile compounds and influence on fungal growth. | to evaluate the antifungal activity of the volatile organic compounds (vocs) produced by 75 different food-borne bacillus species against aspergillus niger, aspergillus flavus, aspergillus parasiticus, aspergillus clavatus, fusarium oxysporum f. sp. lactucae and moniliophthora perniciosa and to determine the vocs responsible for the inhibition. | 2015 | 25989039 |
| design, synthesis, antimicrobial activity and anti-hiv activity evaluation of novel hybrid quinazoline-triazine derivatives. | a series of novel hybrid quinazoline-triazine derivatives was designed and synthesized from cyanuric chloride and anthranilic acid through sequential reactions, which contain different pharmacophores like quinazoline and substituted diaryl triazine (data) linked with ethylene diamine. all the newly synthesized compounds were characterized by infrared, (1)h-nmr, (13)c-nmr, ms and elemental analysis. further, we evaluated the in vitro anti-hiv activity of the newly synthesized compounds against hi ... | 2014 | 23327639 |
| synthesis of s-triazine-based thiazolidinones as antimicrobial agents. | a novel series of thiazolidinone derivatives, namely 4-{4-dimethylamino-6-[4-oxo-2-phenyl-5-(4-pyridin-2-yl-piperazin-1-ylmethyl)-thiazolidin-3-yl]-[1,3,5]-triazin-2-yloxy}-1-methyl-1h-quinolin-2-ones, have been synthesized from the key intermediate 4-(4-amino-6-dimethylamino-[1,3,5]-triazin-2-yloxy)-1-methyl-1h-quinolin-2-one (5). compound 5 was condensed with various aldehydes to give schiff base derivatives, which after cyclization gave thiazolidinones that were linked with 1-pyridin-2-yl-pip ... | 2012 | 22624326 |
| synthesis of benzimidazolyl-1,3,4-oxadiazol-2ylthio-n-phenyl (benzothiazolyl) acetamides as antibacterial, antifungal and antituberculosis agents. | to affiliate multiple bioactivities in a compact heteronuclei, two series of benzimidazole based 1,3,4-oxadiazoles were synthesized and assessed in vitro for their efficacy as antimicrobial agents against eight bacteria (staphylococcus aureus, bacillus cereus, escherichia coli, pseudomonas aeruginosa, klebsiella pneumoniae, salmonella typhi, proteus vulgaris, shigella flexneri), four fungi (aspergillus niger, aspergillus fumigatus, aspergillus clavatus, candida albicans) and mycobacterium tuberc ... | 2012 | 22516426 |
| in vitro antimicrobial activity of spices and medicinal herbs against selected microbes associated with juices. | in the present investigation, comparison of antimicrobial activities of different spices, curcuma longa, zingiber officinale, and mentha arvensis, and medicinal herbs, such as withania somnifera, rauvolfia serpentina, emblica officinalis, terminalia arjuna, and centella asiatica, was evaluated. different extraction solvents (acetone, methanol, ethanol, and water) were used and extracts were examined against bacillus cereus, serratia sp., rhodotorula mucilaginosa, aspergillus flavus, and penicill ... | 2016 | 26880927 |
| screening and characterization of potential bacillus starter cultures for fermenting low-salt soybean paste (doenjang). | the bacterial strains were screened as potential starters for fermenting low-salt doenjang (a korean traditional fermented soybean paste) using korean doenjang based on proteolytic and antipathogenic activities under 6.5-7.5% nacl conditions. phylogenetic analysis based on 16s rrna gene sequences showed that they all belonged to the genus bacillus. proteolytic and antipathogenic activities against escherichia coli, bacillus cereus, staphylococcus aureus, listeria monocytogenes, and aspergillus f ... | 2016 | 26718466 |
| antimicrobial and antiquorum-sensing studies. part 3: synthesis and biological evaluation of new series of [1,3,4]thiadiazoles and fused [1,3,4]thiadiazoles. | new series of [1,3,4]thiadiazoles and fused [1,3,4]thiadiazoles were synthesized. the newly synthesized compounds were screened for their antibacterial activity against staphylococcus aureus, bacillus cereus, and escherichia coli. compounds 3b and 10a displayed the highest activity against e. coli with mic value of 78.125 μg/ml. in addition, compound 10a exhibited the highest activity against b. cereus with mic value of 156.25 μg/ml. the antifungal activity of these compounds was also tested aga ... | 2015 | 25773477 |
| distinguishing the dominant species of pathogen in maxillary sinusitis by sequencing dna dataset analysis. | this study determined the microbial composition in maxillary sinusitis and determined the predominant fungal and bacterial species. samples were obtained from 11 patients with fungal sinusitis and 2 healthy patients. the 13 samples were sequenced using an illumina hi-seq 2000, and mapping to the human, bacterial, and the fungal genomes were based on several steps. bioinformatics and statistical analyses were then performed for bacterial and fungal expressions in the samples. all samples were cul ... | 2015 | 25724392 |
| antimicrobial and inhibition on heat-induced protein denaturation of constituents isolated from polygonatum verticillatum rhizomes. | this study was designed to assess the susceptibility of various microorganisms and inhibition on heat-induced protein denaturation against diosgenin and santonin, isolated from polygonatum verticillatum rhizomes. both diosgenin and santonin showed significant zone of inhibition when studied against various gram-positive (bacillus subtilis, bacillus cereus, staphylococcus aureus and staphylococcus epidermidis) and gram-negative bacteria (escherichia coli and salmonella typhi). in antifungal assay ... | 2015 | 25553804 |
| synthesis, spectroscopic, anticancer, antibacterial and antifungal studies of ni(ii) and cu(ii) complexes with hydrazine carboxamide, 2-[3-methyl-2-thienyl methylene]. | schiff's base ligand(l) hydrazine carboxamide, 2-[3-methyl-2-thienyl methylene] and its metal complexes have been synthesized and characterized by elemental analysis, molar conductance, various spectroscopic techniques such as electronic, ir, (1)h nmr, mass, epr. molar conductance of complexes in dmf solution corresponds to non-electrolyte. complexes have general composition [m(l)2x2], where m=ni(ii) and cu(ii), x=cl(-), no3(-), ch3coo(-) and ½so4(2-). on the basis of above spectral studies, an ... | 2015 | 25087168 |
| microbes associated with freshly prepared juices of citrus and carrots. | fruit juices are popular drinks as they contain antioxidants, vitamins, and minerals that are essential for human being and play important role in the prevention of heart diseases, cancer, and diabetes. they contain essential nutrients which support the growth of acid tolerant bacteria, yeasts, and moulds. in the present study, we have conducted a microbiological examination of freshly prepared juices (sweet lime, orange, and carrot) by serial dilution agar plate technique. a total of 30 juice s ... | 2014 | 26904628 |
| microbial decontamination of red pepper powder by cold plasma. | effects of the microwave-powered cold plasma treatments (cpts) on the inhibition of microorganisms in red pepper powder, including aspergillus flavus and bacillus cereus spores, were investigated. combinations of heat treatment with cpt were investigated for the inhibition of b. cereus spores on the powder. the number of a. flavus was reduced by 2.5 ± 0.3 log spores/g by the cpt with nitrogen at 900 w and 667 pa for 20 min. cpt at 900 w and 667 pa for 20 min inhibited naturally occurring total a ... | 2014 | 24290635 |
| metal based pharmacologically active agents: synthesis, structural characterization, molecular modeling, ct-dna binding studies and in vitro antimicrobial screening of iron(ii) bromosalicylidene amino acid chelates. | in recent years, great interest has been focused on fe(ii) schiff base amino acid complexes as cytotoxic and antitumor drugs. thus a series of new iron(ii) complexes based on schiff bases amino acids ligands have been designed and synthesized from condensation of 5-bromosalicylaldehyde (bs) and α-amino acids (l-alanine (ala), l-phenylalanine (phala), l-aspartic acid (aspa), l-histidine (his) and l-arginine (arg)). the structure of the investigated iron(ii) complexes was elucidated using elementa ... | 2014 | 24001978 |
| cyclic dipeptides from rhabditid entomopathogenic nematode-associated bacillus cereus have antimicrobial activities. | the cell free culture filtrate of bacillus cereus associated with an entomopathogenic nematode, rhabditis (oscheius) sp. exhibited strong antimicrobial activity. the ethyl acetate extract of the bacterial culture filtrate was purified by silica gel column chromatography to obtain four bioactive compounds. the structure and absolute stereochemistry of these compounds were determined based on extensive spectroscopic analyses (fabms, (1)h nmr, (13)c nmr, (1)h-(1)h cosy, (1)h-(13)c hmbc) and marfey' ... | 2014 | 23979826 |
| antioxidative, antimicrobial and cytotoxic effects of the phenolics of leea indica leaf extract. | this study investigated the phytochemical, antioxidative, antimicrobial and cytotoxic effects of leea indica leaf ethanol extract. phytochemical values namely total phenolic and flavonoid contents, total antioxidant capacity, dpph radical scavenging effect, fecl3 reducing power, dmso superoxide scavenging effect and iron chelating effects were studied by established methods. antibacterial, antifungal and cytotoxic effects were screened by disk diffusion technique, food poison technique and brine ... | 2013 | 23961238 |
| biological activity, design, synthesis and structure activity relationship of some novel derivatives of curcumin containing sulfonamides. | five series of curcumin derivatives with sulfonamides 3a-3e, 4a-4e, 5a-5e, 6a-6e and 7a-7e have been synthesized and evaluated for in vitro antibacterial activity against selected medically important gram-(+) and gram-(-) bacterial species viz. staphylococcus aureus, bacillus cereus, salmonella typhi, pseudomonas aeruginosa and escherichia coli, and antifungal activity against few pathogenic fungal species viz. aspergillus niger, aspergillus flavus, trichoderma viride and curvularia lunata. the ... | 2013 | 23685942 |
| synergized antimicrobial activity of eugenol incorporated polyhydroxybutyrate films against food spoilage microorganisms in conjunction with pediocin. | biopolymers and biopreservatives produced by microorganisms play an essential role in food technology. polyhydroxyalkanoates and bacteriocins produced by bacteria are promising components to safeguard the environment and for food preservation applications. polyhydroxybutyrate (phb)-based antimicrobial films were prepared incorporating eugenol, from 10 to 200 μg/g of phb. the films were evaluated for antimicrobial activity against foodborne pathogens, spoilage bacteria, and fungi such as staphylo ... | 2013 | 23666640 |
| design, characterization, teratogenicity testing, antibacterial, antifungal and dna interaction of few high spin fe(ii) schiff base amino acid complexes. | in this study, new fe(ii) schiff base amino acid chelates derived from the condensation of o-hydroxynaphthaldehyde with l-alanine, l-phenylalanine, l-aspartic acid, l-histidine and l-arginine were synthesized and characterized via elemental, thermogravimetric analysis, molar conductance, ir, electronic, mass spectra and magnetic moment measurements. the stoichiometry and the stability constants of the complexes were determined spectrophotometrically. correlation of all spectroscopic data suggest ... | 2013 | 23665616 |
| synthesis, antimicrobial, antiquorum-sensing, antitumor and cytotoxic activities of new series of fused [1,3,4]thiadiazoles. | new series of [1,3,4]thiadiazolo[3,2-a]pyrimidines, benzo[h][1,3,4]thiadiazolo[2,3-b]quinazolines, benzothiadiazolotriazocine, and imidazo[2,1-b][1,3,4]thiadiazoles have been synthesized and characterized by analytical and spectrometrical methods (ir, ms, (1)h and (13)c nmr). twenty of the synthesized compounds were screened for antibacterial activity against escherichia coli, staphylococcus aureus and bacillus cereus. they were found to be either moderately active, slightly active or inactive a ... | 2013 | 23474904 |
| purification of an antifungal compound, cyclo(l-pro-d-leu) for cereals produced by bacillus cereus subsp. thuringiensis associated with entomopathogenic nematode. | mold spoilage is the main cause of substantial economic loss in cereals and might also cause public health problems due to the production of mycotoxins. the aim of this study was to separate and purify and to identify antifungal compounds of bacterium associated with novel entomopathogenic nematode and check the antifungal property of identified compound in particular food model systems. the antifungal compound was purified using silica gel column chromatography, tlc and hplc and its structure w ... | 2013 | 23305769 |
| design, structural and spectroscopic elucidation, and the in vitro biological activities of new diorganotin dithiocarbamates. | the reaction of 2,2-dimethoxy-n-methylethyllamine or 2-methyl-1,3-dioxolane with cs(2) in alkaline media produced two novel dithiocarbamate salts. subsequent reactions with organotin halides yielded six new complexes: [snme(2){s(2)cnr(r(1))(2)}(2)] (1), [sn(n-bu)(2){s(2)cnr(r(1))(2)}(2)] (2), [snph(2){s(2)cnr(r(1))(2)}(2)] (3), [snme(2){s(2)cnr(r(2))(2)}(2)] (4), [sn(n-bu)(2){s(2)cnr(r(2))(2)}(2)] (5), [snph(2){s(2)cnr(r(2))(2)}(2)] (6), where r = methyl, r(1) = ch(2)ch(ome)(2), and r(2) = 2-met ... | 2012 | 23159807 |
| synthesis and evaluation of antimicrobial activity of 4h-pyrimido[2,1-b]benzothiazole, pyrazole and benzylidene derivatives of curcumin. | a novel, one-pot, simple, efficient procedure for 4h-pyrimido[2,1-b]benzothiazole (4a-h), pyrazole (6a-d) and benzylidene (7a-d) derivatives of curcumin under solvent and solvent free conditions in microwave with good yield is have been synthesized. the synthesized compounds were evaluated for their antibacterial activity against gram-positive and gram-negative bacteria viz. staphylococcus aureus, pseudomonas aeruginosa, salmonella typhi, escherichia coli, bacillus cereus and providencia rettger ... | 2012 | 22683240 |
| synthesis of a new class of antimicrobial agents incorporating the indolin-2-one moiety. | new furanone derivatives incorporating the indolin-2-one moiety 3 were prepared via the perkin reaction of isatins 1 with aroylpropionic acids 2 under conventional conditions or microwave irradiation. a series of functionally heterocyclic derivatives (e.g., pyridazines, pyrroles, and sulfonamides) incorporating the indolin-2-one moiety was achieved via reaction of 3 with different reagents under microwave irradiation conditions. the newly synthesized compounds were characterized on the basis of ... | 2013 | 22651801 |
| preliminary study on the antimicrobial activity of enicostemma littorale using different solvents. | to study the antimicrobial activity of enicostemma littorale (e. littorale) using different solvents. | 2012 | 22647818 |
| synthesis and biological evaluation of a new series of benzimidazole derivatives as antimicrobial, antiquorum-sensing and antitumor agents. | new benzimidazole derivatives were synthesized and assessed for antimicrobial efficacy toward escherichia coli, bacillus cereus, staphylococcus aureus, candida albicans and aspergillus fumigatus 293. results indicated that compounds 3c and 3n have promising activity toward s. aureus, whereas 3i exhibited remarkable efficacy toward b. cereus. moreover, compound 3c was proved to be the most active antifungal analog toward c. albicans. on the other hand, 3n displayed the highest activity against a. ... | 2017 | 28334654 |
| quaternary ammonium biocides as antimicrobial agents protecting historical wood and brick. | quaternary ammonium compounds (qacs) are widely used in disinfection of water, surfaces and instruments as well as in textile, leather and food industries because of their relatively low toxicity, broad antimicrobial spectrum, non-volatility and chemical stability. due to these advantages, qacs are also used in restoration and can be applied on historical material. the aim of this study was to determine the usefulness of biocides based on quaternary ammonium salts and containing various excipien ... | 2016 | 26629794 |
| assessment of microbial contamination within working environments of different types of composting plants. | the objective of the study was to determine the degree of microbiological contamination, type of microflora, bioaerosol particle size distribution, and concentration of endotoxins in dust in different types of composting plants. in addition, this study provides a list of indicator microorganisms that pose a biological threat in composting facilities, based on their prevalence within the workplace, source of isolation, and health hazards. we undertook microbiological analysis of the air, work sur ... | 2015 | 25947216 |
| mangostanaxanthones i and ii, new xanthones from the pericarp of garcinia mangostana. | two new xanthones: mangostanaxanthones i (3) and ii (5) were isolated from the pericarp of garcinia mangostana, along with four known xanthones: 9-hydroxycalabaxanthone (1), parvifolixanthone c (2), α-mangostin (4), and rubraxanthone (6). their structures were elucidated on the basis of ir, uv, 1d, 2d nmr, and ms spectroscopic data, in addition to comparison with literature data. the isolated compounds were evaluated for their antioxidant, antimicrobial, and quorum-sensing inhibitory activities. ... | 2014 | 25128900 |
| n-heterocyclic choline analogues based on 1,2,3,4-tetrahydro(iso)quinoline scaffold with anticancer and anti-infective dual action. | pharmacological effects of biologically active "small molecules" can be improved by their targeted modification, which affects drug delivery and interaction with tumor cells and microorganisms. we aimed to evaluate anticancer and antimicrobial activity of lipid-like choline derivatives modified via simultaneous introduction of tetrahydro(iso)quinoline based pharmacophore system at nitrogen atom and long chain alkyl substituent at oxygen atom. | 2017 | 28364698 |
| rational design, synthesis, anti-hiv-1 rt and antimicrobial activity of novel 3-(6-methoxy-3,4-dihydroquinolin-1(2h)-yl)-1-(piperazin-1-yl)propan-1-one derivatives. | in the present study, fifteen novel 3-(6-methoxy-3,4-dihydroquinolin-1(2h)-yl)-1-(piperazin-1-yl)propan-1-one (6a-o) derivatives were designed as inhibitor of hiv-1 rt using ligand based drug design approach and in-silico evaluated for drug-likeness properties. designed compounds were synthesized, characterized and in-vitro evaluated for rt inhibitory activity against wild hiv-1 rt strain. among the tested compounds, four compounds (6a, 6b, 6j and 6o) exhibited significant inhibition of hiv-1 rt ... | 2016 | 27288643 |
| microwave assisted one-pot catalyst free green synthesis of new methyl-7-amino-4-oxo-5-phenyl-2-thioxo-2,3,4,5-tetrahydro-1h-pyrano[2,3-d]pyrimidine-6-carboxylates as potent in vitro antibacterial and antifungal activity. | an efficiently simple protocol for the synthesis of methyl 7 amino-4-oxo-5-phenyl-2-thioxo-2, 3, 4,5-tetrahydro-1h-pyrano[2,3-d]pyrimidine-6-carboxylates via one-pot three component condensation pathway is established via microwave irradiation using varied benzaldehyde derivatives, methylcyanoacetate and thio-barbituric acid in water as a green solvent. a variety of functionalized substrates were found to react under this methodology due to its easy operability and offers several advantages like ... | 2015 | 26644932 |
| [differential sensitivity of microorganisms to polyhexamethyleneguanidine]. | factors identified that affect the sensitivity of microorganisms to polyhexamethyleneguanidine (phmg). salts of phmg chloride, valerate, maleate, succinate was to use. test strains of esherichia coli, staphylococcus aureus, bacillus cereus, leptospira interrogans, paenibacillus larvae, mycobacterium bovis, m. avium, m. fortuitum, aspergillus niger and some strains of viruses are taken as objects of research. we have determined that the cytoplasm membrane phospholipids is main "target" for the po ... | 2015 | 26638480 |
| composition and bioactivities of an (e)-β-farnesene chemotype of chamomile (matricaria chamomilla) essential oil from nepal. | the essential oil of matricaria chamomilla, collected from nepal, was obtained by hydrodistillation and analyzed by gas chromatography-mass spectrometry. the major components in nepalese chamomile oil were (e)-β-famesene (42.2%), α-bisabolol oxide a (22.3%), (e,e)-α-famesene (8.3%), cis-bicycloether (5.0%), α-bisabolol oxide b (4.5%), and α-bisabolone oxide a (4.0%). a cluster analysis based on the chemical compositions of 48 samples of chamomile oil reported in the literature has revealed seven ... | 2015 | 26434140 |
| mechanistic aspects of biologically synthesized silver nanoparticles against food- and water-borne microbes. | in the present study, silver nanoparticles (agnps) synthesized from aqueous leaves extract of malva crispa and their mode of interaction with food- and water-borne microbes were investigated. formation of agnps was conformed through uv-vis, fe-sem, eds, afm, and hr-tem analyses. further the concentration of silver (ag) in the reaction mixture was conformed through icp-ms analysis. different concentration of nanoparticles (1-3 mm) tested to know the inhibitory effect of bacterial pathogens such a ... | 2015 | 26178241 |
| ieodoglucomide c and ieodoglycolipid, new glycolipids from a marine-derived bacterium bacillus licheniformis 09idym23. | chemical examination of the ethyl acetate extract from the fermentation broth of the marine-derived bacterium bacillus licheniformis resulted in the isolation of two new glycolipids, ieodoglucomide c (1) and ieodoglycolipid (2). the structural characterization of 1 and 2 was achieved by extensive spectroscopic evidence, including 2d nmr experiments. a combination of chemical derivatization techniques followed by nmr studies, lc-ms data analysis and a literature review was deployed for the establ ... | 2015 | 25893812 |
| secondary metabolites of seseli rigidum: chemical composition plus antioxidant, antimicrobial and cholinesterase inhibition activity. | extracts of different polarity obtained from various plant parts (root, leaf, flower and fruit) of seseli rigidum were studied by different antioxidant assays: dpph and abts radical scavenging activity, by total reducing power method as well as via total content of flavonoids and polyphenols. essential oils of all plant parts showed weak antioxidant characteristics. the inhibitory concentration range of the tested extracts, against bacteria escherichia coli, pseudomonas aeruginosa, staphylococcu ... | 2015 | 25863020 |
| chemical composition and biological activity of pulicaria vulgaris essential oil from iran. | the present study investigated the chemical composition of the essential oil (eo) from aerial parts (flowering stage) of pulicaria vulgaris gaertn. by gc-ms. also, the antimicrobial activity of the eo against gram-positive bacteria (bacillus cereus and staphylococcus aureus), gram-negative bacteria (escherichia coli and pseudomonas aeruginosa) and fungi (aspergillus niger and candida albicans) was tested. in total, 23 compounds were recognized, accounting for 98.08% of the eo. the main compounds ... | 2014 | 25532299 |
| antibacterial and antifungal activity of holothuria leucospilota isolated from persian gulf and oman sea. | emergence of antimicrobial resistance toward a number of conventional antibiotics has triggered the search for antimicrobial agents from a variety of sources including the marine environment. | 2014 | 25147657 |
| influence of albizia lebbeck saponin and its fractions on in vitro gas production kinetics, rumen methanogenesis, and rumen fermentation characteristics. | the present study was undertaken to investigate the effect of crude seed powder (csp) and gross saponins extract (gse) of seeds of albizia lebbeck on antimicrobial activity by taking two gram-positive (staphylococcus aureus and bacillus cereus), two gram-negative (escherichia coli and salmonella typhi) bacteria, and two fungi species (aspergillus niger and candida butyric) were taken at 25, 50, 100, 250, and 500 µg levels using agar well diffusion method. zone of inhibition was increased with in ... | 2014 | 24977047 |
| influence of acetylation degree and molecular weight of homogeneous chitosans on antibacterial and antifungal activities. | the results given in the literature are conflicting when considering the relationship between antimicrobial activity and chitosan characteristics. to be able to clarify, we prepared fifteen homogeneous chitosans with different acetylation degrees (da) and molecular weights (mw) by reacetylation of a fully deacetylated chitin under homogeneous conditions. they were tested at different ph values for their antimicrobial activities against four gram-negative bacteria (escherichia coli, pseudomonas a ... | 2014 | 24929684 |
| synthesis, characterization and biological studies of substituted quinozoline-4-(3h)-ones containing diazepine moiety. | the synthesis and characterization of new series of 1,4-benzodiazepine derivatives have been presented. the structures were confirmed by elemental analyses, ir spectral, (1)h nmr spectral and mass spectral data. all the compounds were screened for in vitro antimicrobial and anthelmintic activities. the antibacterial activity was tested against staphylococcus aureus (gram positive), bacillus cereus (gram positive), escherichia coli (gram negative) and pseudomonas aeruginosa (gram negative). the a ... | 2014 | 24438669 |
| volatile analysis and antimicrobial screening of the parasitic plant cuscuta reflexa roxb. from nepal. | the essential oil from the parasitic vine cuscuta reflexa roxb., collected from kirtipur, kathmandu, nepal, was obtained by hydrodistillation and analysed by gas chromatography-mass spectrometry. from a total of 62 peaks, 61 compounds were identified in the oil, accounting for 99.6% of the oil. the majority of the essential oil was dominated by the relatively rare component cis-3-butyl-4-vinylcyclopentane (26.4%). the oil also contained substantial amounts of limonene (5.1%) and (e)-nerolidol (9 ... | 2014 | 24116676 |
| chemical composition and biological activity of the essential oil from leaves of moringa oleifera lam. cultivated in mozambique. | the antioxidant capacity and antimicrobial activity of the essential oil of moringa oleifera (moringaceae) grown in mozambique was investigated. the chemical composition was studied by means of gc and gc-ms analysis. hexacosane (13.9%), pentacosane (13.3%) and heptacosane (11.4%) were the main components. ultra high performance chromatography-dad analysis detected the flavonoids quercetin (126 μg/g) and luteolin (6.2 μg/g). the essential oil exhibited a relatively low free radical scavenging cap ... | 2013 | 24022760 |
| volatile constituents of pinus roxburghii from nepal. | pinus roxburghii sarg. is one of 3 species of pine found in nepal, the oil of which is traditionally used to treat cuts, wounds, boils, and blisters. | 2013 | 23598924 |
| antimicrobial activity of a new preservative for multiuse ophthalmic solutions. | the aim of this study was to examine the antimicrobial activity and the preservative efficacy of a novel preservative solution containing sodium hydroxymethyl glycinate (shmg) and edetate disodium (edta), which is used for preservation of some commercial ophthalmic formulations. | 2013 | 23428175 |
| copper(ii) triflate promoted multicomponent catalytic clubbing of piperazinyl-thiazoloquinolines and thiazolocoumarins as antimicrobials. | step economical, multicomponent construction of two series based on quinoline and coumarin ring systems was carried out. annulation towards the 2-piperazinylthiazole system was established in satisfactory yields, using copper(ii) triflate. these multicomponent reaction products were examined for their potential inhibitory effect against two gram-positive bacteria (staphylococcus aureus and bacillus cereus), three gram-negative bacteria (escherichia coli, pseudomonas aeruginosa, and klebsiella pn ... | 2013 | 23423648 |
| antibacterial, antifungal and antioxidant activities of the ethanol extract of the stem bark of clausena heptaphylla. | there is wide spread interest in drugs derived from plants as green medicine is believed to be safe and dependable, compared with costly synthetic drugs that have adverse effects. | 2012 | 23181593 |
| influence of substituent effects on spectroscopic properties and antimicrobial activity of 5-(4'-substituted phenylazo)-2-thioxothiazolidinone derivatives. | 5-(4'-substituted phenylazo)-2-thioxothiazolidinone derivatives (hl(n)) have been synthesized and characterized by elemental analysis, spectra (ir, electronic and (1)h nmr). the ir spectral data indicate that the compounds can exist in two resonance structures. the synthesized ligands were screened for their antimicrobial activity against four bacterial species, two gram positive bacteria (bacillus cereus and staphylococcus aureus) and two gram negative bacteria (escherichia coli and klebsiella ... | 2013 | 22968655 |
| evaluating bionanoparticle infused fungal metabolites as a novel antimicrobial agent. | therapeutic properties of fungal metabolites and silver nanoparticles have been well documented. while fungal metabolites have been used for centuries as medicinal drugs, potential of biogenic silver nanoparticles has recently received attention. we have evaluated the antimicrobial potential of aspergillus terreus crude extract, silver nanoparticles and an amalgamation of both against four pathogenic bacterial strains. antimicrobial activity of the following was evaluated - a. terreus extract, b ... | 2017 | 27429931 |
| pereskia aculeata muller (cactaceae) leaves: chemical composition and biological activities. | the aims of this work were to study the chemical composition of the essential oil from the leaves of pereskia aculeata and to evaluate some biological activities of three leaf extracts. the phenolic content, antioxidant activity, and in vitro antimicrobial and antifungal activities were determined. the methanol extract showed antioxidant activity (ec50 7.09 mg/ml) and high polyphenols content (15.04 ± 0.31 mg gallic acid equivalents (gae)/g). the petroleum ether extract exhibited potent antibact ... | 2016 | 27598154 |
| biochemical characterization and antimicrobial and antifungal activity of two endemic varieties of garlic (allium sativum l.) of the campania region, southern italy. | extracts of the bulbs of the two endemic varieties "rosato" and "caposele" of allium sativum of the campania region, southern italy, were analyzed. the phenolic content, ascorbic acid, allicin content, and in vitro antimicrobial and antifungal activity were determined. ultra performance liquid chromatography with diode array detector performed polyphenol profile. the polyphenolic extracts showed antioxidant activity (ec50) lower than 120 mg. the amount of ascorbic acid and allicin in the two ext ... | 2016 | 27259073 |
| detection of boron removal capacities of different microorganisms in wastewater and effective removal process. | in this study boron removal capacities of different microorganisms were tested. candida tropicalis, rhodotorula mucilaginosa, micrococcus luteus, bacillus thuringiensis, bacillus cereus, bacillus megaterium, bacillus pumilus, pseudomonas aeruginosa and aspergillus versicolor were examined for their boron bioaccumulation capacities in simulated municipal wastewater. a. versicolor and b. cereus were found as the most boron-tolerant microorganisms in the experiments. also boron bioaccumulation yiel ... | 2015 | 26540546 |
| diversity, antimicrobial and antioxidant activities of culturable bacterial endophyte communities in aloe vera. | twenty-nine culturable bacterial endophytes were isolated from surface-sterilized tissues (root, stem and leaf) of aloe vera and molecularly characterized to 13 genera: pseudomonas, bacillus, enterobacter, pantoea, chryseobacterium, sphingobacterium, aeromonas, providencia, cedecea, klebsiella, cronobacter, macrococcus and shigella. the dominant genera include bacillus (20.7%), pseudomonas (20.7%) and enterobacter (13.8%). the crude and ethyl acetate fractions of the metabolites of six isolates, ... | 2015 | 26454221 |
| dynamics of bacterial class bacilli in the deepest valley lake of kashmir-the manasbal lake. | in recognition of the importance of bacteria as ecological indicators of the aquatic systems a comprehensive and systematic analysis was carried out on manasbal lake, the deepest spring fed valley lake of kashmir. the main objective envisaged was to analyze bacterial community composition (bcc) and for this purpose systematic and regular sampling of waters from ten different sampling stations, predetermined in the lake according to differences in degree of human interference and also as zones of ... | 2017 | 28087491 |
| the response of maize (zea mays l.) plant assisted with bacterial consortium and fertilizer under oily sludge. | the objective of this study was to evaluate the role of pgpr consortium and fertilizer alone and in combination on the physiology of maize grown under oily sludge stress environment as well on the soil nutrient status. consortium was prepared from bacillus cereus (acc kr232400), bacillus altitudinis (acc kf859970), comamonas (delftia) belonging to family comamonadacea (acc kf859971) and stenotrophomonasmaltophilia (acc kf859973). the experiment was conducted in pots with complete randomized desi ... | 2016 | 26587972 |
| biodiversity of aerobic endospore-forming bacterial species occurring in yanyanku and ikpiru, fermented seeds of hibiscus sabdariffa used to produce food condiments in benin. | yanyanku and ikpiru made by the fermentation of malcavene bean (hibiscus sabdariffa) are used as functional additives for parkia biglobosa seed fermentations in benin. a total of 355 aerobic endospore-forming bacteria (aefb) isolated from yanyanku and ikpiru produced in northern and southern benin were identified using phenotypic and genotypic methods, including gtg5-pcr, m13-pcr, 16s rrna, gyra and gyrb gene sequencing. generally, the same 5-6 species of the genus bacillus predominated: bacillu ... | 2013 | 23571124 |
| bacillus spp. isolated from puba as a source of biosurfactants and antimicrobial lipopeptides. | several products of industrial interest are produced by bacillus, including enzymes, antibiotics, amino acids, insecticides, biosurfactants and bacteriocins. this study aimed to investigate the potential of two bacterial isolates (p5 and c3) from puba, a regional fermentation product from cassava, to produce multiple substances with antimicrobial and surface active properties. phylogenetic analyses showed close relation of isolates p5 and c3 with bacillus amyloliquefaciens and bacillus thuringie ... | 2017 | 28197131 |
| the lipopeptide 6-2 produced by bacillus amyloliquefaciens anti-ca has potent activity against the biofilm-forming organisms. | both the whole cells and protoplasts of pseudomonas aeruginosa pao1 and bacillus cereus, two biofilm-forming bacteria, were disrupted by the lipopeptide 6-2 produced by bacillus amyloliquefaciens anti-ca. the lipopeptide 6-2 could also effectively inhibit the formation of biofilms and disperse pre-formed biofilms. live/dead staining of the biofilms grown in the absence or presence of the lipopeptide 6-2 showed that more dead bacterial cells in the presence of the lipopeptide than those in the ab ... | 2016 | 27184127 |