Publications
| Title | Abstract | Year Filter | PMID(sorted descending) Filter |
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| cockroaches (blattodea: blattidae): a reservoir of pathogenic microbes in human-dwelling localities in lahore. | this study focuses on isolation of pathogenic bacteria from external and internal surfaces of cockroaches collected from houses and hospitals in lahore. in total, 240 adult cockroaches were collected from houses and hospitals by hand or using sticky traps and food-bait traps. cockroach species were identified, and microbial screening was done for external surfaces and gut tracts of cockroaches. jaccard's index of similarity, bray-curtis' index of dissimilarity, and shannon-wiener's diversity ind ... | 2016 | 27744361 |
| comparison of microbiological and probiotic characteristics of lactobacilli isolates from dairy food products and animal rumen contents. | lactobacilli are employed in probiotic food preparations and as feed additives in poultry and livestock, due to health benefits associated with their consumption. the objective of this study was to evaluate and compare the probiotic potential of ten lactobacilli strains isolated from commercial dairy food products and animal rumen contents in new zealand. genetic identification of the isolates revealed that all belonged to the genus lactobacillus, specifically the species l. reuteri, l. rhamnosu ... | 2015 | 27682086 |
| ndm-producing enterobacteriaceae in a chinese hospital, 2014-2015: identification of ndm-producing citrobacterwerkmanii and acquisition of blandm-1-carrying plasmid in vivo in a clinical escherichia coli isolate. | new delhi metallo-β-lactamase (ndm)-producing enterobacteriaceae (npe) shows prevalence in china. little is known about the mechanisms related to the spread of npe. recently, a total of 51 non-duplicated npe isolates were collected from a tertiary-care hospital in china and analysed for genetic relatedness by pfge, antimicrobial susceptibility by etest and sequence type by multilocus sequence typing. s1-pfge and southern blot analysis or pcr amplification were used for plasmid profiling. between ... | 2016 | 27667823 |
| the differential importance of mutations within ampd in cephalosporin resistance of enterobacter aerogenes and enterobacter cloacae. | mechanisms leading to carbapenem and cephalosporin resistance were sought in enterobacter aerogenes isolates that were highly resistant to carbapenems but had no known carbapenemase. results were compared with recent work examining carbapenem-resistant enterobacter cloacae. eighteen carbapenem-resistant e. aerogenes were screened for known β-lactamase and carbapenemase genes, and novel carbapenemases were sought in whole-genome sequencing (wgs) data of the three most resistant isolates. for all ... | 2016 | 27665520 |
| carbapenem-resistant enterobacteriaceae: prevalence and risk factors in a single community-based hospital in korea. | carbapenemase-producing enterobacteriaceae (cpe) are gram-negative bacteria with increasing prevalence of infection worldwide. in korea, 25 cases of cpe isolates were reported by the korea centers for disease control and prevention in 2011. most cpe cases were detected mainly at tertiary referral hospitals. we analyzed the prevalence and risk factors for carbapenem-resistant enterobacteriaceae (cre) in a mid-sized community-based hospital in korea. | 2016 | 27659436 |
| transmission of enterobacter aerogenes septicemia in healthcare workers. | enterobacter aerogenes is recognized as an important bacterial pathogen in hospital-acquired infections. this report describes two unusual cases of septicemia caused by e. aerogenes in immunocompetent healthcare workers. e. aerogenes was isolated from blood cultures of the two patients experiencing septicemia. the clinical isolates were initially identified as e. aerogenes using a vitek ii automated system and 16s rrna sequence analysis, and; both isolates involved in the outbreak shared a commo ... | 2016 | 27610316 |
| longer contact times increase cross-contamination of enterobacter aerogenes from surfaces to food. | bacterial cross-contamination from surfaces to food can contribute to foodborne disease. the cross-contamination rate of enterobacter aerogenes on household surfaces was evaluated by using scenarios that differed by surface type, food type, contact time (<1, 5, 30, and 300 s), and inoculum matrix (tryptic soy broth or peptone buffer). the surfaces used were stainless steel, tile, wood, and carpet. the food types were watermelon, bread, bread with butter, and gummy candy. surfaces (25 cm(2)) were ... | 2016 | 27590818 |
| prevalence and antimicrobial resistance pattern of bacterial strains isolated from patients with urinary tract infection in messalata central hospital, libya. | to investigate the prevalence of urinary tract infection among patients at messalata central hospital, libya, to identify the causative bacteria, and to explore their resistance pattern to antimicrobials. | 2016 | 27569886 |
| detection of new delhi metallo-beta-lactamase (encoded by blandm-1 ) in enterobacter aerogenes in china. | the increase in blandm-1 in enterobacteriaceae has become a major concern worldwide. in previous study, we investigated clonal dissemination and mechanisms of resistance to carbapenem in china. | 2017 | 27565452 |
| bioprospecting of lipolytic microorganisms obtained from industrial effluents. | the lipases have ability to catalyze diverse reactions and are important in different biotechnological applications. the aim of this work was to isolate and characterize microorganisms that produce lipases, from different food industry effluents localized in pelotas, rs/brazil. bacteria were identified using gram stain and biochemical tests (vitek 2(r)). fungi were identified according to macro and micromorphology characteristics. the extracellular lipase production was evaluated using the rhoda ... | 2016 | 27556331 |
| carbapenem-resistant enterobacter spp. in retail seafood imported from southeast asia to canada. | 2016 | 27533255 | |
| impaired blood neutrophil function in the frequent exacerbator of chronic obstructive pulmonary disease: a proof-of-concept study. | the underlying biological mechanisms of the frequent exacerbator phenotype of copd remain unclear. we compared systemic neutrophil function in copd patients with or without frequent exacerbations. | 2016 | 27530251 |
| prevalence of extended spectrum beta-lactamase production among uropathogens in south mumbai and its antibiogram pattern. | β-lactams are the most widely used group of antimicrobials. however, increasing resistance to these valuable drugs in uropathogens, mediated principally by β-lactamases, has become a major concern. the present study was undertaken to determine the prevalence of extended spectrum β-lactamase (esbl) producers in clinical isolates of urine specimens, collected from various healthcare centres across south mumbai. a total of 195 gram negative urine isolates were identified as pseudomonas aeruginosa ( ... | 2012 | 27418912 |
| characterization and evaluation of antibacterial and antiproliferative activities of crude protein extracts isolated from the seed of ricinus communis in bangladesh. | ricinus communis (euphorbiaceae) has previously been reported to possess analgesic, antihistamine, antioxidant and anti-inflammatory activities. this study was designed for isolation, characterization and evaluation of antibacterial and anti-proliferative activities of r. communis seed protein. | 2016 | 27405609 |
| the melatonin-sensitive circadian clock of the enteric bacterium enterobacter aerogenes. | circadian clocks are fundamental properties of all eukaryotic organisms and at least some prokaryotic organisms. recent studies in our laboratory have shown that the gastrointestinal system contains a circadian clock that controls many, if not all, aspects of gastrointestinal function. we now report that at least one species of intestinal bacteria, enterobacter aerogenes, responds to the pineal and gastrointestinal hormone melatonin by an increase in swarming activity. this swarming behavior is ... | 2016 | 27387841 |
| antibacterial and antibiotic-resistance modifying activity of the extracts and compounds from nauclea pobeguinii against gram-negative multi-drug resistant phenotypes. | multi-drug resistance of gram-negative bacteria constitutes a major obstacle in the antibacterial fight worldwide. the discovery of new and effective antimicrobials and/or resistance modulators is necessary to combat the spread of resistance or to reverse the multi-drug resistance. in this study, we investigated the antibacterial and antibiotic-resistance modifying activities against 29 gram-negative bacteria including multi-drug resistant (mdr) phenotypes of the methanol extracts from nauclea p ... | 2016 | 27386848 |
| physiological and molecular characteristics of carbapenem resistance in klebsiella pneumoniae and enterobacter aerogenes. | bacterial resistance is a growing concern in the nosocomial environment in which klebsiella pneumoniae and enterobacter aerogenes play an important role due to their opportunism and carbapenemase-production. this work aimed to evaluate physiological and molecular characteristics of carbapenem-resistant k. pneumoniae and e. aerogenes isolated in a brazilian tertiary hospital. | 2016 | 27367007 |
| isolation, partial purification and evaluation of bioactive compounds from leaves of ageratum houstonianum. | the present study deals with the isolation and partial purification of bioactive compounds from the crude methanol extracts of the leaves of ageratum houstonianum (asteraceae). the quantification and the identification of compounds in the crude extract and active bands isolated by preparative tlc were accomplished using gc-ms analysis. the most important compounds identified in the crude extract and active bands (ab-1 and ab-2) were 6-acetyl-7-methoxy-2, 2-dimethylchromene, hexadecanoic acid and ... | 2012 | 27350770 |
| enhancing hydrogen production of enterobacter aerogenes by heterologous expression of hydrogenase genes originated from synechocystis sp. | the hydrogenase genes (hoxefuyh) of synechocystis sp. pcc 6803 were cloned and heterologously expressed in enterobacter aerogenes atcc13408 for the first time in this study, and the hydrogen yield was significantly enhanced using the recombinant strain. a recombinant plasmid containing the gene in-frame with glutathione-s-transferase (gst) gene was transformed into e. aerogenes atcc13408 to produce a gst-fusion protein. sds-page and western blot analysis confirm the successful expression of the ... | 2016 | 27343449 |
| optimization of l-asparaginase production from novel enterobacter sp., by submerged fermentation using response surface methodology. | the culture conditions and nutritional rations influencing the production of extra cellular antileukemic enzyme by novel enterobacter aerogenes kctc2190/mtcc111 were optimized in shake-flask culture. process variables like ph, temperature, incubation time, carbon and nitrogen sources, inducer concentration, and inoculum size were taken into account. in the present study, finest enzyme activity achieved by traditional one variable at a time method was 7.6 iu/ml which was a 2.6-fold increase compa ... | 2017 | 27340934 |
| isolation and characterization of a bacteriophage phieap-2 infecting multidrug resistant enterobacter aerogenes. | enterobacter aerogenes (enterobacteriaceae) is an important opportunistic pathogen that causes hospital-acquired pneumonia, bacteremia, and urinary tract infections. recently, multidrug-resistant e. aerogenes have been a public health problem. to develop an effective antimicrobial agent, bacteriophage phieap-2 was isolated from sewage and its genome was sequenced because of its ability to lyse the multidrug-resistant clinical e. aerogenes strain 3-sp. morphological observations suggested that th ... | 2016 | 27320081 |
| synthesis, base pairing and structure studies of geranylated rna. | natural rnas utilize extensive chemical modifications to diversify their structures and functions. 2-thiouridine geranylation is a special hydrophobic trna modification that has been discovered very recently in several bacteria, such as escherichia coli, enterobacter aerogenes, pseudomonas aeruginosa and salmonella typhimurium the geranylated residues are located in the first anticodon position of trnas specific for lysine, glutamine and glutamic acid. this big hydrophobic terpene functional gro ... | 2016 | 27307604 |
| bioprocess development for kefiran production by lactobacillus kefiranofaciens in semi industrial scale bioreactor. | lactobacillus kefiranofaciens is non-pathogenic gram positive bacteria isolated from kefir grains and able to produce extracellular exopolysaccharides named kefiran. this polysaccharide contains approximately equal amounts of glucose and galactose. kefiran has wide applications in pharmaceutical industries. therefore, an approach has been extensively studied to increase kefiran production for pharmaceutical application in industrial scale. the present work aims to maximize kefiran production thr ... | 2015 | 27298582 |
| bioprocess development for kefiran production by lactobacillus kefiranofaciens in semi industrial scale bioreactor. | lactobacillus kefiranofaciens is non-pathogenic gram positive bacteria isolated from kefir grains and able to produce extracellular exopolysaccharides named kefiran. this polysaccharide contains approximately equal amounts of glucose and galactose. kefiran has wide applications in pharmaceutical industries. therefore, an approach has been extensively studied to increase kefiran production for pharmaceutical application in industrial scale. the present work aims to maximize kefiran production thr ... | 2015 | 27298582 |
| antimicrobial activity of croton macrostachyus stem bark extracts against several human pathogenic bacteria. | in kenya, leaves and roots from croton macrostachyus are used as a traditional medicine for infectious diseases such as typhoid and measles, but reports on possible antimicrobial activity of stem bark do not exist. in this study, the antibacterial and antifungal effects of methanol, ethyl acetate and butanol extracts, and purified lupeol of c. macrostachyus stem bark were determined against important human gram-negative pathogens escherichia coli, salmonella typhi, klebsiella pneumoniae, and ent ... | 2016 | 27293897 |
| isolation of kpc 3-producing enterobacter aerogenes in a patient colonized by mdr klebsiella pneumoniae. | we describe the interspecies transmission of the plasmid-mediated blakpc-3 gene, which confers carbapenem resistance, between clinically relevant gram-negative bacteria in a single patient. a kpc-3 producing enterobacter aerogenes was isolated from a hospitalized patient previously colonized and then infected by a klebsiella pneumoniae st101 carrying the blakpc-3 gene. the strains showed identical plasmids. since intense horizontal exchanges among bacteria can occur in the gut, clinicians should ... | 2016 | 27284988 |
| migration of dictyostelium discoideum to the chemoattractant folic acid. | dictyostelium discoideum can be grown axenically in a cultured media or in the presence of a natural food source, such as the bacterium klebsiella aerogenes (ka). here we describe the advantages and methods for growing d. discoideum on a bacterial lawn for several processes studied using this model system. when grown on a bacterial lawn, d. discoideum show positive chemotaxis towards folic acid (fa). while these vegetative cells are highly unpolarized, it has been shown that the signaling and cy ... | 2016 | 27271892 |
| antibacterial activities of the methanol extracts, fractions and compounds from harungana madagascariensis lam. ex poir. (hypericaceae). | harungana madagascariensis lam. ex poir. (hypericaceae) is used in folk medicine to treat a variety of human ailments, mainly antibacterial, antifungal, antiviral and viral infections. in the present study, the methanol extract from the leaves (hml) and bark (hmb) of this plant as well as fractions (hmba-c), sub-fractions (hmba1-5) and compounds isolated from hmba and hmbb namely betulinic acid (1), madagascin (2), ferruginin a (3) and kaempferol-3-o-β-d-glucopyranoside (4) were tested for their ... | 2016 | 27267830 |
| efflux pump blockers in gram-negative bacteria: the new generation of hydantoin based-modulators to improve antibiotic activity. | multidrug resistant (mdr) bacteria are an increasing health problem with the shortage of new active antibiotic agents. among effective mechanisms that contribute to the spread of mdr gram-negative bacteria are drug efflux pumps that expel clinically important antibiotic classes out of the cell. drug pumps are attractive targets to restore the susceptibility toward the expelled antibiotics by impairing their efflux activity. arylhydantoin derivatives were investigated for their potentiation of ac ... | 2016 | 27199950 |
| [distribution and drug sensitivity test of bacteria of patients on chronic rhinosinusitis with or without nasal polyps]. | to study the distribution and drug sensitivity test of bacteria of patients on chronic rhinosinusitis with or without nasal polyps. | 2016 | 27192905 |
| preliminary feasibility and modelling of a liquid matrix dictyostelium discoideum virulence assay for pseudomonas aeruginosa. | to develop and determine the feasibility of using a liquid matrix adaptation of the dictyostelium discoideum bacterial virulence assay by testing on well-characterised clinical and environmental isolates of pseudomonas aeruginosa. | 2016 | 27181169 |
| mobilization of the salmonella genomic island sgi1 and the proteus genomic island pgi1 by the a/c2 plasmid carrying blatem-24 harboured by various clinical species of enterobacteriaceae. | the objective of this study was to transfer the salmonella genomic islands (gis) sgi1 and sgi1-v and the proteus gi pgi1-pmesc to clinical isolates of enterobacteriaceae harbouring an a/c2 plasmid. | 2016 | 27150396 |
| occurrence and analysis of irp2 virulence gene in isolates of klebsiella pneumoniae and enterobacter spp. from microbiota and hospital and community-acquired infections. | eighty-five isolates of klebsiella pneumoniae and enterobacter spp., originating from hospital- and community-acquired infections and from oropharyngeal and faecal microbiota from patients in recife-pe, brazil, were analyzed regarding the presence of irp2 gene. this is a yersinia typical gene involved in the synthesis of siderophore yersiniabactin. dna sequencing confirmed the identity of irp2 gene in five k. pneumoniae, five enterobacter aerogenes and one enterobacter amnigenus isolates. to our ... | 2016 | 27133266 |
| influence of nanomechanical stress induced by zno nanoparticles of different shapes on the viability of cells. | there is growing interest in nanostructures interacting with living organisms. however, there are still no general rules for the design of biocompatible nanodevices. here, we present a step towards understanding the interactions between nanostructures and living cells. we study the influence of nanomechanical stress induced by zinc oxide (zno) nanostructures of different shapes on the viability of both prokaryotic (gram-negative bacteria: escherichia coli and enterobacter aerogenes, and gram-pos ... | 2016 | 27074722 |
| dissemination of the blakpc gene by clonal spread and horizontal gene transfer: comparative study of incidence and molecular mechanisms. | in addition to the global spread of the kpc-producing klebsiella pneumoniae (kpc-kp) clonal complex (cc)-258 clone, the blakpc gene may also spread by horizontal gene transfer (hgt), as suspected when more than one kpc-producing enterobacteriaceae (kpc-ent) species are isolated in a single patient. we aimed to characterize the incidence and molecular features of kpc-kp that were isolated alone (singular kpc-kp) versus kpc-kp that were isolated together with another kpc-ent species (joint kpc-kp) ... | 2016 | 27073266 |
| dictyostelium discoideum as a surrogate host-microbe model for antivirulence screening in pseudomonas aeruginosa pao1. | the interest of the pharmaceutical industry in developing new antibiotics is decreasing, as established screening systems which identify compounds that kill or inhibit the growth of bacteria can no longer be used. consequently, antimicrobial screening using classical minimum inhibitory concentration (mic) measurements is becoming obsolete. the discovery of antimicrobial agents that specifically target a bacterial pathogen without affecting the host and its beneficial bacteria is a promising stra ... | 2016 | 27066943 |
| multidrug-resistant combined infections in a liver transplanted patient: case report. | we report a case of successfully treated multiple liver abscesses in a liver-transplanted patient, sustained by combined multidrug-resistant infections. two months after a liver transplant, a computed tomography scan revealed the presence of multiple abscesses in the liver graft. blood cultures and abscessual liver fluid were both positive for acquired colistin- and carbapenem- resistant klebsiella pneumoniae and an extended-spectrum of beta-lactamases-producing enterobacter aerogenes. the treat ... | 2016 | 27063638 |
| sonication of abdominal drains: clinical implications of quantitative cultures for the diagnosis of surgical site infection. | the use of drains in patients undergoing abdominal surgery has been a subject of debate for several decades. in this paper, the usefulness of quantitative cultures of sonicated abdominal drains for diagnosing surgical site of infection (ssi) and the association between culture results with patient outcome is evaluated. | 2016 | 27046739 |
| emphysematous pyelitis and cystitis associated with vesicoureteral reflux in a diabetic dog. | a 12-year-old female dog with a 3-month history of poor response to diabetes treatment had an acute worsening of symptoms, including weakness and blindness. the dog had elevated blood glucose, alkaline phosphatase and urea concentration, hyposthenuria, glycosuria, hematuria, and pyuria. escherichia coli was isolated from the urine. radiographs and ultrasound examination showed that the dog had unilateral emphysematous pyelitis and concurrent cystitis associated with vesicoureteral reflux. | 2016 | 27041755 |
| formations of calcium carbonate minerals by bacteria and its multiple applications. | biomineralization is a naturally occurring process in living organisms. in this review, we discuss microbially induced calcium carbonate precipitation (micp) in detail. in the micp process, urease plays a major role in urea hydrolysis by a wide variety of microorganisms capable of producing high levels of urease. we also elaborate on the different polymorphs and the role of calcium in the formation of calcite crystal structures using various calcium sources. additionally, the environmental facto ... | 2016 | 27026942 |
| isolation of enterobacter aerogenes carrying blatem-1 and blakpc-3 genes recovered from a hospital intensive care unit. | enterobacter aerogenes has recently emerged as an important hospital pathogen. in this study, we showed the emergence of e. aerogenes isolates carrying the blakpc gene in patients colonized by carbapenem-resistant klebsiella pneumoniae strains. two multiresistant e. aerogenes isolates were recovered from bronchial aspirates of two patients hospitalized in the intensive care unit at the "santa maria della scaletta" hospital, imola. the antimicrobial susceptibility test showed the high resistance ... | 2016 | 27004836 |
| emergence of the plasmid-mediated mcr-1 gene in colistin-resistant enterobacter aerogenes and enterobacter cloacae. | 2016 | 26976876 | |
| osteoconductive composite graft based on bacterial synthesized hydroxyapatite nanoparticles doped with different ions: from synthesis to in vivo studies. | to repair damaged bone tissues, osteoconductive bone graft substitutes are required for enhancement of the regenerative potential of osteoblast cells. nanostructured hydroxyapatite is a bioactive ceramic used for bone tissue engineering purposes. in this study, carbonate hydroxyapatite (cha) and zinc-magnesium substituted hydroxyapatite (zn-mg-ha) nanoparticles were synthesized via biomineralization method using enterobacter aerogenes. the structural phase composition and the morphology of the s ... | 2016 | 26956413 |
| characterization of a novel qepa3 variant in enterobacter aerogenes. | five isolates harboring qepa were studied by polymerase chain reaction (pcr) amplification and relevant methods. one was determined to be a novel qepa3 from enterobacter aerogenes, and four involved three qepa1 and one qepa2 determinants from escherichia coli; the qepa3 changed five amino acids. these results characterized genetic structures a, b, c, d, and e. | 2016 | 26947590 |
| emphysematous cholecystitis presenting as gas-forming liver abscess and pneumoperitoneum in a dialysis patient: a case report and review of the literature. | emphysematous cholecystitis is a rare variant of acute cholecystitis with a high mortality rate. the combination of emphysematous cholecystitis, liver abscess and pneumoperitoneum are even rarer. herein we present a case of emphysematous cholecystitis in a senile diabetic lady who had worsening hemodynamics while undergoing hemodialysis. | 2016 | 26932814 |
| cleaning and disinfection of blenders used in hospital kitchens. | the efficiency of a range of methods used to clean and disinfect blenders was compared. blenders with metal, plastic and glass goblets were experimentally contaminated with klebsiella aerogenes after which they were cleaned and disinfected by (a) cold water rinse, (b) detergent wash, (c) detergent wash and disinfectant soak, (d) detergent wash and boiling water rinse and (e) autoclaving. autoclaving was the only procedure that sterilized the blenders but this could only be used for blenders with ... | 1991 | 26927842 |
| evaluation of groundwater quality in a rural community in north central of nigeria. | evaluation of water quality of nine boreholes and three open hand-dug wells in a rural community in north central nigeria revealed relative abundance of cations na > k > ca > mg > zn > pb and anions cl(-) > po4(2-) > so4(2-) > no3(-) in the boreholes and cations ca > na > k > mg > pb and anions no3(-) > po4(2-) > so4(2-) > cl(-) in the wells. the major contaminants exceeding son and who permissible limits were no3(-) , mg, th, ph and mg, pb, th, ph and do in the wells and boreholes, respective ... | 2016 | 26915740 |
| antibacterial attributes of apigenin, isolated from portulaca oleracea l. | the flavonoid apigenin was isolated from aerial part of p. oleracea l. the dried sample of plant was powdered and subjected to soxhlet extractor by adding 80 ml of ethanol : water (70 : 30). the extract was centrifuged at 11000 rpm for 30 min; supernatant was taken for further use. the fraction was concentrated and subjected to ptlc. the r f value of isolated apigenin was calculated (0.82). purified material was also subjected to its ir spectra, lc-ms, nmr, and hplc for structural elucidation. t ... | 2014 | 26904730 |
| antibacterial and antiinflammatory properties of bovine colostrum. | immunity related disorder is one of the leading causes of disease in the world. oxidative stress and microbial infections play a major role in inflammation-induced diseases. bovine colostrum (bc) contains immunoglobulins and lactoferrins which help in building the immunity and protect against the bacterial proliferation and growth. | 2016 | 26899853 |
| one-pot synthesis and antimicrobial evaluation of novel 3-cyanopyridine derivatives of (-)-β-pinene. | a series of novel 3-cyanopyridine derivatives of (-)-β-pinene were designed and synthesized by one-pot four-component domino reactions. the targeted compounds were evaluated for their antimicrobial activity against four bacteria (klebsiella pneumoniae, enterobacter aerogenes, staphylococcus aureus, staphylococcus epidermidis) and a fungus (candida albicans). the results showed that most of the minimal inhibitory concentrations (mics) of these 3-cyanopyridine derivatives against the tested strain ... | 2016 | 26898336 |
| trapping and viability of swimming bacteria in an optoelectric trap. | non-contact manipulation methods capable of trapping and transporting swimming bacteria can significantly aid in chemotaxis studies. however, high swimming speed makes the trapping of these organisms an inherently challenging task. we demonstrate that an optoelectric technique, rapid electrokinetic patterning (rep), can effectively trap and manipulate enterobacter aerogenes bacteria swimming at velocities greater than 20 μm s(-1). rep uses electro-orientation, laser-induced ac electrothermal flo ... | 2016 | 26891971 |
| enhanced dark hydrogen fermentation by addition of ferric oxide nanoparticles using enterobacter aerogenes. | ferric oxide nanoparticles (fonps) were used to facilitate dark hydrogen fermentation using enterobacter aerogenes. the hydrogen yield of glucose increased from 164.5±2.29 to 192.4±1.14ml/g when fonps concentration increased from 0 to 200mg/l. sem images of e. aerogenes demonstrated the existence of bacterial nanowire among cells, suggesting fonps served as electron conduits to enhance electron transfer. tem showed cellular internalization of fonps, indicating hydrogenase synthesis and activity ... | 2016 | 26890796 |
| comparative study on the level of bacteriological contamination of automatic teller machines, public toilets and public transport commercial motorcycle crash helmets in kigali city, rwanda. | the environments can be contaminated by infectious agents that constitute a major health hazards as sources of community and hospital-acquired infections due to various activities. | 2014 | 26859015 |
| molecular docking of glycine max and medicago truncatula ureases with urea; bioinformatics approaches. | urease (ec 3.5.1.5) is a nickel-dependent metalloenzyme catalyzing the hydrolysis of urea into ammonia and carbon dioxide. it is present in many bacteria, fungi, yeasts and plants. most species, with few exceptions, use nickel metalloenzyme urease to hydrolyze urea, which is one of the commonly used nitrogen fertilizer in plant growth thus its enzymatic hydrolysis possesses vital importance in agricultural practices. considering the essentiality and importance of urea and urease activity in most ... | 2016 | 26852122 |
| adequate hand washing and glove use are necessary to reduce cross-contamination from hands with high bacterial loads. | hand washing and glove use are the main methods for reducing bacterial cross-contamination from hands to ready-to-eat food in a food service setting. however, bacterial transfer from hands to gloves is poorly understood, as is the effect of different durations of soap rubbing on bacterial reduction. to assess bacterial transfer from hands to gloves and to compare bacterial transfer rates to food after different soap washing times and glove use, participants' hands were artificially contaminated ... | 2016 | 26818993 |
| development of molecular approach based on pcr assay for detection of histamine producing bacteria. | histamine fish poisoning becomes highly concern not only in public health but also economic aspect. histamine is produced from histidine in fish muscles by bacterial decarboxylase enzyme. several techniques have been developed to determine the level of histamine in fish and their products but the effective method for detecting histamine producing bacteria is still required. this study was attempted to detect histamine producing bacteria by newly developed pcr condition. histamine producing bacte ... | 2015 | 26787983 |
| in vitro antibacterial activities of p-toluenesulfonyl-hydrazinothiazoles and hydrazinoselenazoles against multi-drug resistant gram-negative phenotypes. | bacterial multidrug resistance (mdr) constitutes a major hurdle in the treatment of infectious diseases worldwide. the present study was designed to evaluate the antibacterial activities of synthetic p-toluenesulfonyl-hydrazinothiazoles against multidrug resistant gram-negative bacteria. | 2016 | 26782344 |
| antibacterial and antimycotic activity of cotton fabrics, impregnated with silver and binary silver/copper nanoparticles. | effective method of obtaining of the bactericidal bandage materials by impregnation of cotton fabric by aqueous solutions of silver and copper salts followed by a certain regime of heat treatment is developed. the study of obtained materials by methods of optical spectroscopy, electron microscopy, and x-ray phase analysis showed the formation of crystalline silver nanoparticles (nps) and bimetallic ag/cu composites with the corresponding surface plasmon resonance (spr) bands in the absorption sp ... | 2016 | 26781286 |
| antibacterial properties of tebipenem pivoxil tablet, a new oral carbapenem preparation against a variety of pathogenic bacteria in vitro and in vivo. | to systemically investigate the in vitro and in vivo antibacterial properties of tebipenem pivoxil tablet. in addition, acute toxicity of this preparation was also studied. | 2016 | 26751436 |
| human gut bacteria are sensitive to melatonin and express endogenous circadian rhythmicity. | circadian rhythms are fundamental properties of most eukaryotes, but evidence of biological clocks that drive these rhythms in prokaryotes has been restricted to cyanobacteria. in vertebrates, the gastrointestinal system expresses circadian patterns of gene expression, motility and secretion in vivo and in vitro, and recent studies suggest that the enteric microbiome is regulated by the host's circadian clock. however, it is not clear how the host's clock regulates the microbiome. here, we demon ... | 2016 | 26751389 |
| antimicrobial properties of black grape (vitis vinifera l.) peel extracts against antibiotic-resistant pathogenic bacteria and toxin producing molds. | black grape peel possesses a substantial amount of polyphenolic antimicrobial compounds that can be used for controlling the growth of pathogenic microorganisms. the purpose of this study was to assess antibacterial and antifungal activity of black grape peel extracts against antibiotic-resistant pathogenic bacteria and toxin producing molds, respectively. | 2017 | 26729960 |
| first case of propionibacterium acnes urinary tract infection in a dog. | propionibacterium acnes has been rarely isolated as a commensal from dogs, but there is little evidence of pathogenicity. urinary tract infections are common in dogs and are typically caused by various commensal bacteria. here we present the first case report of a urinary tract infection caused by p. acnes. | 2015 | 26690238 |
| expression of lactate dehydrogenase in aspergillus niger for l-lactic acid production. | different engineered organisms have been used to produce l-lactate. poor yields of lactate at low ph and expensive downstream processing remain as bottlenecks. aspergillus niger is a prolific citrate producer and a remarkably acid tolerant fungus. neither a functional lactate dehydrogenase (ldh) from nor lactate production by a. niger is reported. its genome was also investigated for the presence of a functional ldh. the endogenous a. niger citrate synthase promoter relevant to a. niger acidogen ... | 2015 | 26683313 |
| mutational analysis of the hyc-operon determining the relationship between hydrogenase-3 and nadh pathway in enterobacter aerogenes. | in this study, the hydrogenase-3 gene cluster (hycdefgh) was isolated and identified from enterobacter aerogenes cctcc ab91102. all gene products were highly homologous to the reported bacterial hydrogenase-3 (hyd-3) proteins. the genes hyce, hycf, hycg encoding the subunits of hydrogenase-3 were targeted for genetic knockout to inhibit the fhl hydrogen production pathway via the red recombination system, generating three mutant strains ab91102-e (δhyce), ab91102-f (δhycf) and ab91102-g (δhycg). ... | 2016 | 26672442 |
| role of the outer membrane and porins in susceptibility of β-lactamase-producing enterobacteriaceae to ceftazidime-avibactam. | this study examined the activity of the novel antimicrobial combination ceftazidime-avibactam against enterobacteriaceae exhibiting different outer membrane permeability profiles, specifically with or without porins and with or without expression of the main efflux pump (acrab-tolc). the addition of the outer membrane permeabilizer polymyxin b nonapeptide increased the antibacterial activities of avibactam alone, ceftazidime alone, and ceftazidime-avibactam against the characterized clinical iso ... | 2015 | 26666933 |
| ca(ii) binding regulates and dominates the reactivity of a transition-metal-ion-dependent diesterase from mycobacterium tuberculosis. | the diesterase rv0805 from mycobacterium tuberculosis is a dinuclear metallohydrolase that plays an important role in signal transduction by controlling the intracellular levels of cyclic nucleotides. as rv0805 is essential for mycobacterial growth it is a promising new target for the development of chemotherapeutics to treat tuberculosis. the in vivo metal-ion composition of rv0805 is subject to debate. here, we demonstrate that the active site accommodates two divalent transition metal ions wi ... | 2016 | 26662456 |
| frequency of bacterial agents isolated from patients with chronic sinusitis in northern iran. | sinusitis is a disease with significant health problems. diagnosis of sinusitis is clinical. the golden standard for detection of microorganisms that cause sinusitis is the culture of sinus drainage discharge. | 2015 | 26652093 |
| nqrm (duf539) protein is required for maturation of bacterial na+-translocating nadh:quinone oxidoreductase. | na(+)-translocating nadh:quinone oxidoreductase (na(+)-nqr) catalyzes electron transfer from nadh to ubiquinone in the bacterial respiratory chain, coupled with na(+) translocation across the membrane. na(+)-nqr maturation involves covalent attachment of flavin mononucleotide (fmn) residues, catalyzed by flavin transferase encoded by the nqr-associated apbe gene. analysis of complete bacterial genomes has revealed another putative gene (duf539, here renamed nqrm) that usually follows the apbe ge ... | 2016 | 26644436 |
| microbiologic analyses of patients before and after liver transplant. | the aim of this study was to analyze microbiologic screening results of patients before and after liver transplant. | 2015 | 26640931 |
| prevalence of multidrug resistant uropathogenic bacteria in pediatric patients of a tertiary care hospital in eastern india. | today, because systemic infections such as urinary tract infection (uti) affect even pediatric patients, antibiotic resistant bacteria have become a constant clinical challenge. in the present study, a total of 1054 urine samples were collected from pediatric patients over 18 months. from these samples, 510 isolates of pathogenic bacteria were collected using hicrome uti agar. antibiotic sensitivity tests of isolates were performed using the kirby-bauer method. two gram-positive bacteria (entero ... | 2017 | 26617250 |
| in vitro antibacterial and antibiotic-potentiation activities of the methanol extracts from beilschmiedia acuta, clausena anisata, newbouldia laevis and polyscias fulva against multidrug-resistant gram-negative bacteria. | the present study was designed to investigate the antibacterial activities of the methanol extracts from different parts of beilschmedia acuta kosterm (lauraceae), clausena anisata (willd) hook (rutaceae), newbouldia laevis seem (bignoniaceae) and polyscias fulva (hiern) harms (araliaceae) as well as their synergistic effects with antibiotics against a panel of gram-negative bacteria, including multi-drug resistant (mdr) phenotypes expressing active efflux pumps. | 2015 | 26590804 |
| in vitro antimicrobial activity of a siderophore cephalosporin, s-649266, against enterobacteriaceae clinical isolates, including carbapenem-resistant strains. | s-649266 is a novel siderophore cephalosporin antibiotic with a catechol moiety on the 3-position side chain. two sets of clinical isolate collections were used to evaluate the antimicrobial activity of s-649266 against enterobacteriaceae. these sets included 617 global isolates collected between 2009 and 2011 and 233 β-lactamase-identified isolates, including 47 kpc-, 49 ndm-, 12 vim-, and 8 imp-producers. the mic90 values of s-649266 against the first set of escherichia coli, klebsiella pneumo ... | 2016 | 26574013 |
| the spread of bla oxa-48 and bla oxa-244 carbapenemase genes among klebsiella pneumoniae, proteus mirabilis and enterobacter spp. isolated in moscow, russia. | the spread of carbapenemase-producing enterobacteriaceae (cpe) is a great problem of healthcare worldwide. study of the spread for bla oxa-48-like genes coding epidemically significant carbapenemases among hospital pathogens is important for the regional and global epidemiology of antimicrobial resistance. | 2015 | 26526183 |
| deterioration to extinction of wastewater bacteria by non-thermal atmospheric pressure air plasma as assessed by 16s rdna-dgge fingerprinting. | the use of cold plasma jets for inactivation of a variety of microorganisms has recently been evaluated via culture-based methods. accordingly, elucidation of the role of cold plasma in decontamination would be inaccurate because most microbial populations within a system remain unexplored owing to the high amount of yet uncultured bacteria. the impact of cold atmospheric plasma on the bacterial community structure of wastewater from two different industries was investigated by metagenomic-based ... | 2015 | 26500637 |
| activity of fosfomycin and comparison of several susceptibility testing methods against contemporary urine isolates. | fosfomycin is recommended as first-line treatment for acute uncomplicated cystitis in women. it has demonstrated in vitro activity against a variety of pathogens; however, a paucity of data are available from the usa. we determined the susceptibility of a collection of urine isolates to fosfomycin and compared multiple methods of susceptibility testing. consecutive non-duplicate enterobacteriaceae, enterococci and pseudomonas aeruginosa isolates were collected from the clinical microbiology labo ... | 2015 | 26498988 |
| biosynthesis characterization of silver nanoparticles using cassia roxburghii dc. aqueous extract, and coated on cotton cloth for effective antibacterial activity. | the present study reports the green synthesis of silver nanoparticles (agnps) from silver precursor using a plant biomaterial, cassia roxburghii dc., aqueous extract. the agnps were synthesized from the shade-dried leaf extract and assessed for their stability; they elucidated characteristics under uv-visible spectroscopy, x-ray diffraction, fourier transform infrared spectroscopy, high-resolution transmission electron microscopy, and energy dispersive x-ray spectroscopy. the synthesized agnps e ... | 2015 | 26491310 |
| phenolic compounds: strong inhibitors derived from lignocellulosic hydrolysate for 2,3-butanediol production by enterobacter aerogenes. | lignocellulosic biomass are attractive feedstocks for 2,3-butanediol production due to their abundant supply and low price. during the hydrolysis of lignocellulosic biomass, various byproducts are formed and their effects on 2,3-butanediol production were not sufficiently studied compared to ethanol production. therefore, the effects of compounds derived from lignocellulosic biomass (weak acids, furan derivatives and phenolics) on the cell growth, the 2,3-butanediol production and the enzymes ac ... | 2015 | 26479290 |
| effect of nanocomposite packaging containing zno on growth of bacillus subtilis and enterobacter aerogenes. | recent advances in nanotechnology have opened new windows in active food packaging. nano-sized zno is an inexpensive material with potential antimicrobial properties. the aim of the present study is to evaluate the antibacterial effect of low density polyethylene (ldpe) containing zno nanoparticles on bacillus subtilis and enterobacter aerogenes. zno nanoparticles have been synthesized by facil molten salt method and have been characterized by x-ray diffraction (xrd), and scanning electron micro ... | 2016 | 26478403 |
| insights into the global regulation of anaerobic metabolism for improved biohydrogen production. | to improve the biohydrogen yield in bacterial dark fermentation, a new approach of global anaerobic regulation was introduced. two cellular global regulators fnr and narp were overexpressed in two model organisms: facultatively anaerobic enterobacter aerogenes (ea) and strictly anaerobic clostridium paraputrificum (cp). the overexpression of fnr and narp greatly altered anaerobic metabolism and increased the hydrogen yield by 40%. metabolic analysis showed that the global regulation caused more ... | 2016 | 26476162 |
| clostridium perfringens epsilon toxin binds to membrane lipids and its cytotoxic action depends on sulfatide. | epsilon toxin (etx) is one of the major lethal toxins produced by clostridium perfringens types b and d, being the causal agent of fatal enterotoxemia in animals, mainly sheep and goats. etx is synthesized as a non-active prototoxin form (proetx) that becomes active upon proteolytic activation. etx exhibits a cytotoxic effect through the formation of a pore in the plasma membrane of selected cell targets where etx specifically binds due to the presence of specific receptors. however, the identit ... | 2015 | 26452234 |
| catabolism of amino acids and related compounds. | this review considers the pathways for the degradation of amino acids and a few related compounds (agmatine, putrescine, ornithine, and aminobutyrate), along with their functions and regulation. nitrogen limitation and an acidic environment are two physiological cues that regulate expression of several amino acid catabolic genes. the review considers escherichia coli, salmonella enterica serovar typhimurium, and klebsiella species. the latter is included because the pathways in klebsiella specie ... | 2005 | 26443507 |
| epidemiology of carbapenem-resistant enterobacteriaceae in 7 us communities, 2012-2013. | carbapenem-resistant enterobacteriaceae (cre) are increasingly reported worldwide as a cause of infections with high-mortality rates. assessment of the us epidemiology of cre is needed to inform national prevention efforts. | 2015 | 26436831 |
| activity of temocillin, mecillinam, ceftazidime, and ceftazidime/avibactam against carbapenem-non-susceptible enterobacteriaceae without carbapenemase production. | treatment options for multidrug-resistant gram-negative infections are scarce and therefore alternatives with a narrow spectrum or new agents are sought. antimicrobial susceptibility to temocillin, mecillinam, ceftazidime, and ceftazidime/avibactam was determined using etest and disk diffusion according to european committee on antimicrobial susceptibility testing (eucast) methodology. a total of 77 carbapenem-nonsusceptible enterobacteriaceae were studied, including klebsiella pneumoniae (26%), ... | 2015 | 26433746 |
| purification and antibiofilm activity of ahl-lactonase from endophytic enterobacter aerogenes vt66. | the opportunistic pathogen pseudomonas aeruginosa uses biofilm lifestyle to resist antibiotic treatment. in our study, endophytic bacterium enterobacter aerogenes vt66 quenched the n-acyl homoserine lactone (ahl) molecules produced by p. aeruginosa pao1. the quorum quenching activity was attributed to the presence of ahl-lactonase. the ahl-lactonase was purified using column chromatography and purified ahl-lactonase was applied for the control of biofilm formation in p. aeruginosa pao1. the resu ... | 2015 | 26432367 |
| pan-genomic analysis to redefine species and subspecies based on quantum discontinuous variation: the klebsiella paradigm. | various methods are currently used to define species and are based on the phylogenetic marker 16s ribosomal rna gene sequence, dna-dna hybridization and dna gc content. however, these are restricted genetic tools and showed significant limitations. | 2015 | 26420254 |
| astaxanthin from psychrotrophic sphingomonas faeni exhibits antagonism against food-spoilage bacteria at low temperatures. | food production and processing industry holds a perpetual relationship with microorganisms and their by-products. in the present study, we aimed to identify beneficial cold-adapted bacteria devoid of any food spoilage properties and study their antagonism against common food-borne pathogens at low temperature conditions. ten isolates were obtained on selective isolation at 5 °c, which were spread across genera pseudomonas, sphingomonas, psychrobacter, leuconostoc, rhodococcus, and arthrobacter. ... | 2015 | 26411893 |
| composition, in vitro cytotoxic, and antimicrobial activities of the flower essential oil of diospyros discolor from taiwan. | this study investigated the chemical composition, in vitro cytotoxic, and antimicrobial activities of the essential oil isolated from the flower of diospyros discolor from taiwan. the essential oil was isolated using hydrodistillation in a clevenger-type apparatus, and characterized by gc-fid and gc-ms. twenty-eight compounds were identified, representing 100% of the oil. the main components identified were (2z,6e)-farnesol (35.0%), α-cadinol (10.9%), (e)-nerolidol (6.9%), α-humulene (6.0%), τ-c ... | 2015 | 26411038 |
| mutational and computational evidence that a nickel-transfer tunnel in ured is used for activation of klebsiella aerogenes urease. | nickel-containing urease from klebsiella aerogenes requires four accessory proteins for proper active site metalation. the metallochaperone uree delivers nickel to ureg, a gtpase that forms a ured/uref/ureg complex, which binds to urease apoprotein via ured. prior in silico analysis of the homologous, structurally characterized ureh/uref/ureg complex from helicobacter pylori identified a water tunnel originating at a likely nickel-binding motif in ureg, passing through uref, and exiting ureh, su ... | 2015 | 26401965 |
| in vivo evolution of bacterial resistance in two cases of enterobacter aerogenes infections during treatment with imipenem. | infections caused by multidrug resistant (mdr) bacteria are a major concern worldwide. changes in membrane permeability, including decreased influx and/or increased efflux of antibiotics, are known as key contributors of bacterial mdr. therefore, it is of critical importance to understand molecular mechanisms that link membrane permeability to mdr in order to design new antimicrobial strategies. in this work, we describe genotype-phenotype correlations in enterobacter aerogenes, a clinically pro ... | 2015 | 26398358 |
| antimicrobial triterpenes from the stem bark of crossopteryx febrifuga. | phytochemical investigation of the stem bark extract of crossopteryx febrifuga resulted in the isolation of epimeric mixtures of 3β-urs-12,20(30)-diene-27,28-dioic acid and 18-epi-3β-urs-12,20(30)-diene-27,28-dioic acid (1), as well as: 3β-d-glucopyranosylurs-12,20(30)-diene-27,28-dioic acid and 18-epi-3β-d-glucopyranosylurs-12,20(30)-diene-27,28-dioic acid (2), together with some known compounds such as the monoglyceride of palmitic acid, as well as β-sitosterol and its glucoside. the structure ... | 2015 | 26352201 |
| synthesis of novel sulfonamide analogs containing sulfamerazine/sulfaguanidine and their biological activities. | sulfamerazine and sulfaguanidine are clenched with p-nitrobenzoyl chloride and the products obtained are reduced to naxs in ethanol-water. novel sulfonamides (6a-g and 9a-g) were synthesized by the reaction of these reduced products (4 and 8) with various sulfonyl chlorides (5a-g). the structures of these compounds were characterized using spectroscopic analysis (ir, (1)h-nmr, (13)c-nmr and hrms) technique. antimicrobial activity of sulfonamides (3, 4, 7, 8, 6a-g and 9a-g) was evaluated by the a ... | 2016 | 26327456 |
| prevalence of bovine subclinical mastitis, its etiology and diagnosis of antibiotic resistance of dairy farms in four municipalities of a tropical region of mexico. | a region-wide survey was conducted in the tropical area of tierra caliente, state of guerrero, mexico to estimate the prevalence of subclinical bovine mastitis (scm), distribution of mastitis pathogens, and in vitro antimicrobial susceptibility of different mastitis pathogens in dairy farms. in total, 1036 quarter milk samples were obtained from 259 cows at 87 different dairy farms. collected quarter milk samples were submitted for california mastitis test (cmt), bacteriological examination, and ... | 2015 | 26255183 |
| facile green fabrication of nanostructure zno plates, bullets, flower, prismatic tip, closed pine cone: their antibacterial, antioxidant, photoluminescent and photocatalytic properties. | green synthesis of multifunctional zinc oxide nanoparticles (nps) with a variety of morphologies were achieved by low temperature solution combustion route employing neem (azadirachta indica) extract as fuel. the nanoparticles were characterized by pxrd, ftir, xps, raman and uv-visible spectroscopic studies. the morphologies were studied by sem and tem analysis. the nps were subjected for photoluminescence, photocatalytic, antibacterial and antioxidant activity studies. pxrd pattern confirmed th ... | 2016 | 26241826 |
| alleviation of carbon catabolite repression in enterobacter aerogenes for efficient utilization of sugarcane molasses for 2,3-butanediol production. | due to its cost-effectiveness and rich sugar composition, sugarcane molasses is considered to be a promising carbon source for biorefinery. however, the sugar mixture in sugarcane molasses is not consumed as efficiently as glucose in microbial fermentation due to complex interactions among their utilizing pathways, such as carbon catabolite repression (ccr). in this study, 2,3-butanediol-producing enterobacter aerogenes was engineered to alleviate ccr and improve sugar utilization by modulating ... | 2015 | 26236395 |
| novel glucose-1-phosphatase with high phytase activity and unusual metal ion activation from soil bacterium pantoea sp. strain 3.5.1. | phosphorus is an important macronutrient, but its availability in soil is limited. many soil microorganisms improve the bioavailability of phosphate by releasing it from various organic compounds, including phytate. to investigate the diversity of phytate-hydrolyzing bacteria in soil, we sampled soils of various ecological habitats, including forest, private homesteads, large agricultural complexes, and urban landscapes. bacterial isolate pantoea sp. strain 3.5.1 with the highest level of phytas ... | 2015 | 26209662 |
| prevalence and characterization of high histamine-producing bacteria in gulf of mexico fish species. | recent developments in detection and enumeration of histamine-producing bacteria (hpb) have created powerful molecular-based tools to better understand the presence of spoilage bacteria and conditions, resulting in increased risk of scombrotoxin fish poisoning. we examined 235 scombrotoxin-forming fish from the gulf of mexico for the presence of high hpb. photobacterium damselae subsp. damselae was the most prevalent hpb (49%), followed by morganella morganii (14%), enterobacter aerogenes (4%), ... | 2015 | 26197285 |
| binding to histo-blood group antigen-expressing bacteria protects human norovirus from acute heat stress. | this study aims to investigate if histo-blood group antigen (hbga) expressing bacteria have any protective role on human norovirus (nov) from acute heat stress. eleven bacterial strains were included, belonging to escherichia coli, enterobacter cloacae, enterobacter aerogenes, clostridium difficile, bifidobacterium adolescentis, and b. longum. hbga expression of the bacteria as well as binding of human nov virus-like particles (vlps, gi.1, and gii.4 strains) to the bacteria were detected by flow ... | 2015 | 26191052 |
| disruption of lactate dehydrogenase and alcohol dehydrogenase for increased hydrogen production and its effect on metabolic flux in enterobacter aerogenes. | hydrogen production by enterobacter aerogenes from glucose was enhanced by deleting the targeted ldha and adh genes responsible for two nadh-consuming pathways which consume most nadh generated from glycolysis. compared with the wild-type, the hydrogen yield of iam1183-δldha increased 1.5 fold. metabolic flux analysis showed both iam1183-δldha and iam1183-δadh exhibited significant changes in flux, including enhanced flux towards the hydrogen generation. the lactate production of iam1183-δldha s ... | 2015 | 26188552 |
| isolation, development and identification of salt-tolerant bacterial consortium from crude-oil-contaminated soil for degradation of di-azo dye reactive blue 220. | the objective of this study was development and characterization of a halophilic bacterial consortium for rapid decolorization and degradation of a wide range of dyes and their mixtures. the 16s rrna gene analysis of developed halophilic consortium vn.1 showed that the bacterial consortium contained six bacterial strains, which were identified as pseudomonas fluorescens hm480360, enterobacter aerogenes hm480361, shewanella sp. hm589853, arthrobacter nicotianae hm480363, bacillus beijingensis hm4 ... | 2015 | 26177415 |
| biohydrogen production by co-fermentation of crude glycerol and apple pomace hydrolysate using co-culture of enterobacter aerogenes and clostridium butyricum. | co-substrate utilization of various wastes with complementary characteristics can provide a complete medium for higher hydrogen production. this study evaluated potential of apple pomace hydrolysate (aph) co-fermented with crude glycerol (cg) for increased h2 production and decreased by-products formation. the central composite design (ccd) along with response surface methodology (rsm) was used as tool for optimization and 15 g/l of cg, 5 g/l of aph and 15% (v/v) inoculum were found to be optimu ... | 2015 | 26142996 |