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potentiation of antibiotic activity by eugenia uniflora and eugenia jambolanum.this is the first report about the modifying antibiotic activity of eugenia uniflora l. and eugenia jambolanum l. in this study the ethanol extract of e. uniflora and e. jambolanum was tested for their antimicrobial activity against strains of escherichia coli. the growth of the two strains of e. coli bacteria tested was not inhibited in a clinically relevant form by the extract. the minimal inhibitory concentration was >or=1,024 microg/ml for both strains of e. coli assayed. synergism between t ...201020482280
effects of herbivory by diaprepes abbreviatus (coleoptera: curculionidae) larvae on four woody ornamental plant species.the hypothesis that herbivory by diaprepes root weevil larvae reduces leaf gas exchange and biomass was tested on buttonwood (conocarpus erectus l.), surinam cherry (eugenia uniflora l.), mahogany (swietenia mahagoni jacq.), and pond apple (annona glabra l). for surinam cherry, net co2 assimilation, transpiration, and stomatal conductance, but not internal co2 concentration (collectively referred to as leaf gas exchange values), were 7-32% higher in noninfested than infested plants. for buttonwo ...200919610430
antinociceptive and hypothermic evaluation of the leaf essential oil and isolated terpenoids from eugenia uniflora l. (brazilian pitanga).eugenia uniflora l. (myrtaceae), known as brazilian cherry tree, is a fruity tree spread all over brazil used in popular medicine to treat inflammations, rheumatic pain and fever, as hypoglycemic, diuretic and has been widely used in the cosmetics industry. the present study discusses the chemical composition, the antinociceptive and hypothermic profile of the essential oil of pitangueira leaves. the chemical composition was evaluated by gc-ms and the main constituent of the oil was characterize ...200919423309
variation in the carotenoid composition of the lycopene-rich brazilian fruit eugenia uniflora l.the indigenous pitanga (eugenia uniflora l.) is now marketed and commercially processed in brazil. in the present work, the carotenoids of the pitanga fruit from two states and at two stages of ripening, as well as of processed pitanga products (frozen pulp and juice, the brands being designated as a, b and c) commercialized in campinas, são paulo, were determined by hplc. as compared to ripe pitanga from medianeira, paraná, those from campinas had significantly higher (all-e)-lycopene (14.0 vs. ...200818679799
ethno-veterinary medicine: screening of nigerian medicinal plants for trypanocidal properties.trypanosoma congolense and t. brucei bloodstream form parasites were propagated axenically in suitable standard media at 34 degrees c. the effects of 33 plant extracts, fractions and pure compounds were evaluated on two clones of t. brucei and drug-sensitive and multi-drug-resistant clones of t. congolense. the cytotoxic activity of the trypanocidal extracts was also evaluated on calf aorta endothelial cells in vitro. of the extracts tested, 22% killed t. congolense il 1180 at a concentration of ...200111483373
analysis of the role of nitric oxide in the relaxant effect of the crude extract and fractions from eugenia uniflora in the rat thoracic aorta.this study has evaluated the possible role played by the l-arginine-nitric oxide pathway in the vasorelaxant action of the hydroalcoholic extract from eugenia uniflora, and fractions from the extract, in rings of rat thoracic aorta. the addition of an increasing cumulative concentration of hydroalcoholic extract from e. uniflora (1-300 micrograms ml-1) caused a concentration-dependent relaxation response in intact endothelium-thoracic aorta rings pre-contracted with noradrenaline (30-100 nm). th ...19979232544
ethnopharmacological studies of antimicrobial remedies in the south of brazil.this study reports the antimicrobial evaluation of the species most commonly used in rio grande do sul (rs), the southernmost state of brazil, for treating conditions likely to be associated with microorganisms. a four-stage process of documentation and evaluation was conducted: (a). review of rs ethnobotanical studies; (b). analysis of traditional uses; (c). literature survey on phytochemical and pharmacological data; (d). microbiological screening of selected plants. from the 149 species initi ...200414698521
indigenous traditional medicine: in vitro anti-giardial activity of plants used in the treatment of diarrhea.the ethnopharmacology for treatment of parasitic infections facilitates and directs the search for new chemical entities. in this direction, this study evaluated the cytotoxicity in vitro, against trophozoites of giardia lamblia, of aqueous extracts of leaves achyrocline satureioides (lam.) dc., barks of eugenia uniflora l., aerial parts of foeniculum vulgare miller, and barks of psidium guajava l. these plants are traditionally used for the treatment of diarrhea by the indigenous population mby ...200919153765
yeasts associated with fresh and frozen pulps of brazilian tropical fruits.the occurrence of yeasts on ripe fruits and frozen pulps of pitanga (eugenia uniflora l), mangaba (hancornia speciosa gom.), umbu (spondias tuberosa avr. cam.), and acerola (malpighia glaba l) was verified. the incidence of proteolytic, pectinolytic, and mycocinogenic yeasts on these communities was also determined. a total of 480 colonies was isolated and grouped in 405 different strains. these corresponded to 42 ascomycetous and 28 basidiomycetous species. candida sorbosivorans, pseudozyma ant ...200212353886
antimicrobial activity and phytochemical analysis of crude extracts and essential oils from medicinal plants.we aimed to establish a phytochemical analysis of the crude extracts and performed gc-ms of the essential oils (eos) of eugenia uniflora l. (myrtaceae) and asteraceae species baccharis dracunculifolia dc, matricaria chamomilla l. and vernonia polyanthes less, as well as determining their antimicrobial activity. establishment of the minimal inhibitory concentrations of the crude extracts and eos against 16 staphylococcus aureus and 16 escherichia coli strains from human specimens was carried out ...201122007687
native and introduced host plants of anastrepha fraterculus and ceratitis capitata (diptera: tephritidae) in northwestern argentina.wild or commercially grown, native and exotic fruit were collected in 30 localities in the tucumán province (nw argentina) from january 1990 to december 1995 to determine their status as hosts of anastrepha fraterculus (wiedemann) and/or ceratitis capitata (wiedemann), the only two fruit fly species of economic and quarantine importance in argentina. a total of 84,094 fruit (3,466.1 kg) representing 33 species (7 native and 26 exotic) in 15 plant families were sampled. we determined the followin ...200314503581
eugenia uniflora leaf extract and lipid metabolism in cebus apella monkeys. 19883253496
sun-drying diminishes the antioxidative potentials of leaves of eugenia uniflora against formation of thiobarbituric acid reactive substances induced in homogenates of rat brain and liver.extracts from leaves of pitanga cherry (eugenia uniflora) are considered to be effective against many diseases, and are therefore used in popular traditional medicines. in the present study, the antioxidative effect of sun-dried (pcs) and air-dried (pca) ethanolic extracts of pitanga cherry leaves were investigated. the antioxidant effects were tested by measuring the ability of both pcs and pca to inhibit the formation of thiobarbituric acid reactive species (tbars) induced by prooxidant agents ...200818539016
a compound produced by fruigivorous tephritidae (diptera) larvae promotes oviposition behavior by the biological control agent diachasmimorpha longicaudata (hymenoptera: braconidae).tephritid fruit fly parasitoids use fruit-derived chemical cues and the vibrations that result from larval movements to locate hosts sequestered inside fruit. however, compounds produced by the larvae themselves have not been previously described nor their significance to parasitoid foraging determined. we collected the volatiles from four species of tropical and subtropical tephritidae: anastrepha suspensa (loew), bactrocera dorsalis hendel, bactrocera cucurbitae coquillett, and ceratitis capit ...201122251652
evaluation of some pharmacological activities of eugenia uniflora l.in view of the extensive use of eugenia uniflora in folk medicine, different extracts of dried and fresh leaves of the plant were assayed to test its possible pharmacological activities. the infusion of fresh leaves had a highly significant anti-inflammatory effect when administered p.o. to rats 1 h before subplantar injection of carrageenin. the infusion increased the pentobarbital sleeping time and also had an effect on intestinal transit, and had no acute toxic effect. no analgesic or antimic ...19947898120
a-glucosidase inhibitors from paraguayan natural medicine, ñangapiry, the leaves of eugenia uniflora.the water-soluble extract from a paraguayan natural medicine, nangapiry, the leaves of eugenia uniflora l. (myrtaceae), which has been used as an antidiabetic agent, was found to show inhibitory activities on the increase of plasma glucose level in the sucrose tolerance test (stt) conducted with mice. the portion adsorbed on a cation exchange resin was also found to inhibit a-glucosidases. from the active portion, two new active compounds named uniflorines a ( 1 ) and b ( 2 ) and known (+)-(3a, ...200021214481
pathogenicity for onion and genetic diversity of isolates of the pathogenic fungus colletotrichum gloeosporioides (phyllachoraceae) from the state of pernambuco, brazil.onion anthracnose, caused by colletotrichum gloeosporioides, is one of the main diseases of onions in the state of pernambuco. we examined the pathogenicity of 15 c. gloeosporioides strains and analyzed their genetic variability using rapds and internal transcribed spacers (its) of the rdna region. ten of the strains were obtained from substrates and hosts other than onion, including chayote (sechium edule), guava (psidium guajava), pomegranate (punica granatum), water from the capibaribe river, ...201121365546
record of edessa scabriventris stål (hemiptera: pentatomidae) associated to eugenia uniflora (brazilian-cherry) and psidium guajava (guava) (myrtaceae), in north-northeastern brazil.this study reports for the first time edessa scabriventris stål on eugenia uniflora (brazilian-cherry) and on psidium guajava (guava) (myrtaceae), fruit trees with economic value. its geographic distribution is extended with records for the states of alagoas (maceió municipality 35°45'11.16''w; 9°40'18.52''s) and pará (belém municipality 48°28'14.65''w; 1°26'14.83''s), north-northeastern brazil.201020878009
activity of in vitro forms of dentifrices containing the hydroalcoholic extract of the ripe fruit of eugenia uniflora l. (surinam cherry) on cariogenic bacteria.the aim of this study was to evaluate the in vitro activity of dentifrices containing the hydroalcoholic extract of the ripe fruit of eugenia uniflora l. (surinam cherry) on streptococcus oralis (atcc 10557) and lactobacillus casei (atcc 7469). five dentifrices were used: d1: containing hydroalcoholic extract of eugenia uniflora l.; d2: containing fluoride and hydroalcoholic extract of eugenia uniflora l.; d3: containing triclosan and hydroalcoholic extract of eugenia uniflora l; d4: containing ...201122010405
pharmacological effects of eugenia uniflora (myrtaceae) aqueous crude extract on rat's heart.the effect of aqueous crude extract (ace) of eugenia uniflora l. (myrtaceae) was studied on rat's perfused ventricles. this plant is used in south american traditional medicine as an antihypertensive and we already demonstrated previously its hypotensive properties. in this paper, maximal left intraventriclular pressure (p) of rat's hearts beating at 0.2 hz firstly increased to 162.1+/-11.1% of basal value during 1-3 min of perfusing ace 0.6%. maximum rate of contraction (+p) also increased to d ...200212020928
analysis of antidiarrhoeic effect of plants used in popular medicine.people customarily use the extracts of plants known to have antidiarrhoeal effects without any scientific base to explain the action of the extract. for this reason, an investigation was undertaken with a view to determining the efficacy of the effects of the brute aqueous extract (bae) of the leaves of psidium guajava (guava), stachytarpheta cayenensis (bastard vervain), polygonum punctatum (water smartweed), eugenia uniflora (brazil or surinam cherry) and aster squamatus (zé-da-silva) on the i ...19958734966
quorum quenching and microbial control through phenolic extract of eugenia uniflora fruits.we describe the characterization of the centesimal composition, mineral and phenolic content of eugenia uniflora fruit and the determination of the antioxidant, antimicrobial and quorum quenching activities of the pulp phenolic extract. centesimal composition was determined according to standard methods; trace elements were measured by total reflection x-ray fluorescence spectroscopy. the phenolic compounds were extracted by solid-phase chromatography and quantified by spectrophotometry. antioxi ...201627603708
oenothein b inhibits the expression of pbfks1 transcript and induces morphological changes in paracoccidioides brasiliensis.the fungus paracoccidioides brasiliensis is the causative agent of paracoccidioidomycosis (pcm), the most prevalent human systemic mycosis in latin america. drug toxicity and the appearance of resistant strains have created the need to search for new therapeutic approaches. plants with reputed antimicrobial properties represent a rich screening source of potential antifungal compounds. in this work, the growth of p. brasiliensis yeast cells was evaluated in the presence of oenothein b extracted ...200718033615
analysis of flavonoids from eugenia uniflora leaves and its protective effect against murine sepsis.eugenia uniflora, referred to as pitanga cherry shrub, is largely distributed in tropical and subtropical america. this plant is cultivated in many countries and it is suitable for the production of juice, frozen pulp, and tea. besides, it can be used as treatment for inflammatory diseases. we reported that a flavonoid-rich fraction (he-bu) obtained from leaves decreased the lethality induced by cecal ligation and puncture (clp), a clinically relevant model of sepsis. the oral administration of ...201223320032
natural enemies of the gall-maker eugeniamyia dispar (diptera, cecidomyiidae): predatory ants and parasitoids.natural enemies of the gall maker eugeniamyia dispar (diptera: cecidomyiidae) were studied on the urban area of porto alegre, rs, brazil from october 1993 to march 1996. galls and associated arthropods were followed weekly in the field on individual host plants (eugenia uniflora, myrtaceae) and also in the laboratory. three species of ants attacked the galls, the most common being pseudomyrmex sp. a proportion of galls was parasitised by rileya sp. (eurytomidae). the adults of this solitary ecto ...200212489400
in vitro antifungal activity of essential oils obtained from officinal plants against dermatophytes.thirteen essential oils were isolated from officinal plants and tested in vitro against dermatophyte strains isolated from patients with dermatophytosis. of the tested oils, those obtained from cinnamomum zeylanicum, ocimum gratissimum, cymbopogon citratus, eugenia uniflora and alpinia speciosa were found to be the most active, inhibiting 80% of the dermatophyte strains tested and producing inhibition zones more than 10 mm in diameter.19938015567
curzerene, trans-β-elemenone, and γ-elemene as effective larvicides against anopheles subpictus, aedes albopictus, and culex tritaeniorhynchus: toxicity on non-target aquatic predators.a wide number of studies dealing with mosquito control focus on toxicity screenings of whole plant essential oils, while limited efforts shed light on main molecules responsible of toxicity, as well as their mechanisms of action on non-target organisms. in this study, gc-ms shed light on main essential oil components extracted from leaves of the suriname cherry eugenia uniflora, i.e., curzerene (35.7%), trans-β-elemenone (11.5%), and γ-elemene (13.6%), testing them on anopheles subpictus, aedes ...201728353108
[floristic composition and distribution of the andean subtropical riparian forests of lules river, tucuman, argentina].we studied the floristic composition and distribution of the riparian forest of two hydrographical systems in a subtropical andean region. using uni and multivariate techniques, we tested the hypotheses that a differentiable riparian forest exists, composed by native vegetation typical of the yungas phytogeographical province, and that the distribution of vegetation varied significantly with geomorphologic characteristics. parallel transects along the water courses were used to collect presence- ...201020411737
purification of a lectin from eugenia uniflora l. seeds and its potential antibacterial activity.the aim of this work was to analyse the antimicrobial properties of a purified lectin from eugenia uniflora l. seeds.200818266644
antioxidant activity of paraguayan plant extracts.the antioxidant properties of six medical herbs used in the traditional paraguayan medicine were studied using free radical-generating systems. the methanol extracts from aristolochia giberti, cecropia pachystachya, eugenia uniflora, piper fulvescens, schinus weinmannifolia and schinus terebinthifolia protected against enzymatic and non-enzymatic lipid peroxidation in microsomal membranes of rat. c. pachystachya, e. uniflora, s. weinmannifolia and s. terebinthifolia showed the highest scavenging ...200312628400
screening of some plants used in the brazilian folk medicine for the treatment of infectious diseases.extracts of 13 brazilian medicinal plants were screened for their antimicrobial activity against bacteria and yeasts. of these, 10 plant extracts showed varied levels of antibacterial activity. piper regnellii presented a good activity against staphylococus aureus and bacillus subtilis, a moderate activity on pseudomonas aeruginosa, and a weak activity against escherichia coli. punica granatum showed good activity on s. aureus and was inactive against the other standard strains. eugenia uniflora ...200212471432
ebv dna polymerase inhibition of tannins from eugenia uniflora.nasopharyngeal carcinoma (npc) is one of the high population malignant tumors among chinese in southern china and southeast asia. epstein-barr virus (ebv) is a human b lymphotropic herpes virus which is known to be closely associated with npc. ebv dna polymerase is a key enzyme during ebv replication and is measured by its radioactivity. the addition of phorbol 12-myristate 13-acetate to raji cell cultures led to a large increase in ebv dna polymerase, which was purified by sequential deae-cellu ...200010806300
effect of the crude extract of eugenia uniflora in morphogenesis and secretion of hydrolytic enzymes in candida albicans from the oral cavity of kidney transplant recipients.candida albicans is a diploid yeast that in some circumstances may cause oral or oropharyngeal infections. yeasts virulence factors contribute for both the maintenance of colonizing strains in addition to damage and cause tissue invasion, thus the establishment of infection occurs. the limited arsenal of antifungal drugs for the treatment of candidiasis turn the investigation of natural products mandatory for the discovery of new targets for antifungal drug development. therefore, tropical count ...201525651849
pharmacological basis for the empirical use of eugenia uniflora l. (myrtaceae) as antihypertensive.the rational basis for the use of eugenia uniflora l. (myrtaceae) as antihypertensive in northeastern argentina was assessed in normotensive rats. intraperitoneal administration of the aqueous crude extract (ace) decreased blood pressure (bp) of normotensive rats dose-dependently until 47.1 +/- 8.2% of control. the effective-dose 50 was 3.1 +/- 0.4 mg dried leaves/kg (d.l./kg) (yielding of ace: 17% w/w). to determine the origin of hypotensive activity. alpha-adrenergic antagonistic and vasorelax ...199910432205
chemical and biological evaluation of essential oils from two species of myrtaceae - eugenia uniflora l. and plinia trunciflora (o. berg) kausel.the chemical composition and antimicrobial activity of essential oils obtained from leaves of two myrtaceae species-eugenia uniflora l. and plinia trunciflora (o. berg) kausel-were determined. analysis by gc/ms as well as determination of kovatz indexes indicated atractylone (26.78%) and curzerene (17.96%) as major constituents of e. uniflora oil and α-cadinol (19.15%), apiole (11.15%) and cubenol (5.43%) as main components in p. trunciflora oil. both essential oils were tested for antimicrobial ...201122117172
enhancement of the antifungal activity of antimicrobial drugs by eugenia uniflora l.candidiasis is the most frequent infection by opportunistic fungi such as candida albicans, candida tropicalis, and candida krusei. ethanol extract from eugenia uniflora was assayed, for its antifungal activity, either alone or combined with four selected chemotherapeutic antimicrobial agents, including anphotericin b, mebendazole, nistatin, and metronidazole against these strains. the obtained results indicated that the association of the extract of e. uniflora to metronidazole showed a potenti ...201323819641
eugenia uniflora l. essential oil as a potential anti-leishmania agent: effects on leishmania amazonensis and possible mechanisms of action.eugenia uniflora l. is a member of the myrtaceae family and is commonly known as brazilian cherry tree. in this study, we evaluated the chemical composition of eugenia uniflora l. essential oil (eueo) by using gas chromatography-mass spectrometry (gc-ms) and assessed its anti-leishmania activity. we also explored the potential mechanisms of action and cytotoxicity of eueo. thirty-two compounds were identified, which constituted 92.65% of the total oil composition. the most abundant components we ...201323533469
pitanga (eugenia uniflora l.) fruit juice and two major constituents thereof exhibit anti-inflammatory properties in human gingival and oral gum epithelial cells.pitanga, eugenia uniflora l., is a tropical fruit, which may be consumed as juice. while beneficial health effects of eugenia uniflora l. leaf extracts have extensively been studied, limited data are available on an anti-inflammatory potential of pitanga juice. the aim of the presented study was to investigate anti-inflammatory properties of pitanga juice with regards to a prevention of inflammation-related periodontal diseases. for this purpose, six healthy volunteers swirled pitanga juice, con ...201425228206
antifungal potential of plant species from brazilian caatinga against dermatophytes.trichophyton rubrum and trichophyton mentagrophytes complex, or trichophyton spp. are the main etiologic agents of dermatophytosis, whose treatment is limited by the high cost of antifungal treatments, their various side effects, and the emergence of resistance amongst these species. this study evaluated the in vitro antidermatophytic activity of 23 crude extracts from nine plant species of semiarid vegetation (caatinga) found in brazil. the extracts were tested at concentrations ranging from 1. ...201627007561
anti-trypanosoma cruzi and cytotoxic activities of eugenia uniflora l.chagas disease is caused by trypanosoma cruzi, being considered a public health problem. an alternative to combat this pathogen is the use of natural products isolated from fruits such as eugenia uniflora, a plant used by traditional communities as food and medicine due to its antimicrobial and biological activities. ethanolic extract from e. uniflora was used to evaluate in vitro anti-epimastigote and cytotoxic activity. this is the first record of anti-trypanosoma activity of e. uniflora, demo ...201222426246
antioxidant activity of five brazilian plants used as traditional medicines and food in brazil.this study evaluates the radical-scavenging activity of five plants used as food and medicines in the northeastern region of brazil.021120039
in vitro biological evaluation of eight different essential oils against trypanosoma cruzi, with emphasis on cinnamomum verum essential oil.essential oils (eos) are complex mixtures of secondary metabolites from various plants. it has been shown that several eos, or their constituents, have inhibitory activity against trypanosomatid protozoa. thus, we analyzed the biological activity of different eos on trypanosoma cruzi, as well as their cytotoxicity on vero cells.201425148924
determination of the centesimal composition and characterization of flours from fruit seeds.fruit seeds, common byproducts of the food industry, are generally discarded despite their potential use as a source of nutrients in the human diet. the dietetic use of the flour made from fruit seeds depends on their centesimal composition and other characteristics. in this work the centesimal compositions were determined of six fruits seeds. the flours obtained from these seeds were characterized by infrared absorption spectrometry, x-ray diffraction, thermogravimetric analysis, and low-field ...201424423535
in-vitro evaluation of anti-trichomonal activities of eugenia uniflora leaf.eugenia uniflora, used ethnomedically in some tropical countries as an anti-infective, has shown anti-malarial and anti-trypanocidal activities. therefore using bioactivity guided fractionation, anti-trichomonal activity of e. uniflora leaf was investigated. anti-trichomonal activities of leaf methanol extract and its fractions against trichomonas gallinae as well as their cytotoxicities using an in vitro haemaglutination assay were determined. anti-trichomonacidal activities of the extract impr ...201122238499
eugenia uniflora dentifrice for treating gingivitis in children: antibacterial assay and randomized clinical trial.school-age children are frequently at high risk for the onset of biofilm-dependent conditions, including dental caries and periodontal diseases. the objective of this study was to evaluate the clinical efficacy of a dentifrice containing eugenia uniflora linn. (surinam cherry) extract versus a triclosan-based comparator in treating gingivitis in children aged 10-12 years. the in vitro antibacterial potential of the dentifrice was tested against oral pathogens (streptococcus mutans, streptococcus ...201727652698
in vitro antibacterial and chemical properties of essential oils including native plants from brazil against pathogenic and resistant bacteria.the antimicrobials products from plants have increased in importance due to the therapeutic potential in the treatment of infectious diseases. therefore, we aimed to examine the chemical characterisation (gc-ms) of essential oils (eo) from seven plants and measure antibacterial activities against bacterial strains isolated from clinical human specimens (methicillin-resistant staphylococcus aureus (mrsa) and sensitive (mssa), escherichia coli, pseudomonas aeruginosa, salmonella typhimurium) and f ...201525757433
transcriptional profile of paracoccidioides induced by oenothein b, a potential antifungal agent from the brazilian cerrado plant eugenia uniflora.the compound oenothein b (oenb), which is isolated from the leaves of eugenia uniflora, a brazilian cerrado plant, interferes with paracoccidioides yeast cell morphology and inhibits 1,3-β-d-glucan synthase (pbfks1) transcript accumulation, which is involved in cell wall synthesis. in this work we examined the gene expression changes in paracoccidioides yeast cells following oenb treatment in order to investigate the adaptive cellular responses to drug stress.201324119145
antimicrobial analysis of an antiseptic made from ethanol crude extracts of p. granatum and e. uniflora in wistar rats against staphylococcus aureus and staphylococcus epidermidis.surgical site infection remains a challenge for hospital infection control, especially when it relates to skin antisepsis in the surgical site.201526146655
chemical profiling of the essential oils of syzygium aqueum, syzygium samarangense and eugenia uniflora and their discrimination using chemometric analysis.the essential oil compositions of the leaves of three related myrtaceae species, namely syzygium aqueum, syzygium samarangense and eugenia uniflora, were investigated using glc/ms and glc/fid. altogether, 125 compounds were identified: α-selinene (13.85%), β-caryophyllene (12.72%) and β-selinene constitute the most abundant constituents in s. aqueum. germacrene d (21.62%) represents the major compound in s. samarangense whereas in e. uniflora, spathulenol (15.80%) represents the predominant comp ...201627447784
traditional botanical knowledge of artisanal fishers in southern brazil.this study characterized the botanical knowledge of artisanal fishers of the lami community, porto alegre, southern brazil based on answers to the following question: is the local botanical knowledge of the artisanal fishers of the rural-urban district of lami still active, even since the district's insertion into the metropolitan region of porto alegre?201323898973
antiproliferative and cytotoxic effects of purple pitanga (eugenia uniflora l.) extract on activated hepatic stellate cells.the presence of phenolic compounds in fruit- and vegetable-rich diets has attracted researchers' attention due to their health-promoting effects. the objective of this study was to evaluate the effects of purple pitanga (eugenia uniflora l.) extract on cell proliferation, viability, mitochondrial membrane potential, cell death and cell cycle in murine activated hepatic stellate cells (grx). cell viability by 3-(4,5-dimethylthiazolyl)-2,5-diphenyl-2h-tetrazolium bromide (mtt) assay was significan ...201423475531
identification of micrornas from eugenia uniflora by high-throughput sequencing and bioinformatics analysis.micrornas or mirnas are small non-coding regulatory rnas that play important functions in the regulation of gene expression at the post-transcriptional level by targeting mrnas for degradation or inhibiting protein translation. eugenia uniflora is a plant native to tropical america with pharmacological and ecological importance, and there have been no previous studies concerning its gene expression and regulation. to date, no mirnas have been reported in myrtaceae species.201223166775
identification and antioxidant activity of the extracts of eugenia uniflora leaves. characterization of the anti-inflammatory properties of aqueous extract on diabetes expression in an experimental model of spontaneous type 1 diabetes (nod mice).medical and folklore reports suggest that eugenia uniflora (e. uniflora) is a functional food that contains numerous compounds in its composition, with anti-inflammatory, antioxidant and anti-diabetic effects. in the present study, we investigated the best solvents (water, ethanol and methanol/acetone) for extracting bioactive compounds of e. uniflora leaves, assessing total phenols and the antioxidant activity of the extracts by 2,2-diphenyl-1-picrylhydrazyl (dpph), ferric reducing antioxidant ...201526783951
differential responses of c3 and cam native brazilian plant species to a so2- and spmfe-contaminated restinga.aiming to evaluate responses in terms of growth rates, physiological parameters, and degree of sensitivity to so2 and spmfe in eugenia uniflora l. (myrtaceae, a c3 species) and clusia hilariana schlecht (clusiaceae, a cam species); saplings were exposed to emissions from a pelletizing factory for 7 months. the species were distributed along a transect (200, 500, 800, 1400, and 1700 m away from the emission source), and analyses were performed after 71, 118, and 211 days of exposure to the pollut ...201525956514
time-intensity profile of pitanga nectar (eugenia uniflora l.) with different sweeteners: sweetness and bitterness.pitanga has been used by the brazilian food industry mainly for juice production. this fruit shows good economic potential due to its high concentration of vitamins and minerals. the aim of the present work was to characterize the time-intensity profile of pitanga nectar sweetened with different sweeteners to verify differences on the perception of sweet and bitter tastes. the sweeteners used to replace sucrose were sucralose, aspartame, stevia 40% rebaudioside a, stevia 95% rebaudioside a, neot ...201625627677
physiological and biochemical responses in two ornamental shrubs to drought stress.drought stress is one of the most important abiotic stress limiting the plant survival and growth in the mediterranean environment. in this work, two species typically grown in mediterranean areas with different drought responses were used. two shrubs, with slow (photinia × fraseri dress 'red robin') or fast (eugenia uniflora l. 'etna fire') adaptation ability to drought, were subjected to three water regimes: well-watered (ww), moderate (md), and severe (sd) drought stress conditions for 30 day ...201627242846
de novo assembly of eugenia uniflora l. transcriptome and identification of genes from the terpenoid biosynthesis pathway.pitanga (eugenia uniflora l.) is a member of the myrtaceae family and is of particular interest due to its medicinal properties that are attributed to specialized metabolites with known biological activities. among these molecules, terpenoids are the most abundant in essential oils that are found in the leaves and represent compounds with potential pharmacological benefits. the terpene diversity observed in myrtaceae is determined by the activity of different members of the terpene synthase and ...201425443850
wild edible plants used by the polish community in misiones, argentina.we studied the cultural significance of wild edible plants for eastern european migrants who settled in rural subtropical areas of south america. in 50 interviews with polish migrants and their descendants in northern misiones, argentina, we recorded the use of 41 botanical species and two mushroom taxa. different cultural significance indices were applied and sociodemographic factors such as gender, age and origin were addressed. out of the ten most salient species, nine were fruits (eugenia un ...201726691861
bioactivity evaluation against artemia salina leach of medicinal plants used in brazilian northeastern folk medicine.the brine shrimp (artemia salina leach) lethality bioassay offers an advantage in standardization and quality control of botanical products. this test is well correlated with antitumor activity (cytotoxicity) and can be used to monitor the activity of bioactive natural products. this paper reports the bioactivity of ethanol extracts from seven medicinal plants from the northeast of brazil (acmella uliginosa, ageratum conyzoides, eugenia uniflora, plectranthus neochilus, moringa oleifera, justici ...201222990821
sensory profile and acceptability for pitanga (eugenia uniflora l.) nectar with different sweeteners.the objective of this study was to evaluate the sensory properties and acceptability of pitanga nectar samples prepared with sucrose and different sweeteners (sucralose, aspartame, stevia with 40% rebaudioside a, stevia with 95% rebaudioside a, neotame, and a 2:1 cyclamate/saccharin blend). a total of 13 assessors participated in a quantitative descriptive analysis and evaluated the samples in relation to the descriptor terms. the acceptability test was carried out by 120 fruit juice consumers. ...201627118767
release from herbivory does not confer invasion success for eugenia uniflora in florida.one of the most commonly cited hypotheses explaining invasion success is the enemy release hypothesis (erh), which maintains that populations are regulated by coevolved natural enemies where they are native but are relieved of this pressure in the new range. however, the role of resident enemies in plant invasion remains unresolved. we conducted a field experiment to test predictions of the erh empirically using a system of native, introduced invasive, and introduced non-invasive eugenia congene ...201424141380
monitoring an outdoor smoking area by means of pm2.5 measurement and vegetal biomonitoring.the extension of pollutant accumulation in plant leaves associated with its genotoxicity is a common approach to predict the quality of outdoor environments. however, this approach has not been used to evaluate the environmental quality of outdoor smoking areas. this study aims to evaluate the effects of environmental tobacco smoke (ets) by assessing particulate matter 2.5 μm (pm2.5) levels, the pollen abortion assay, and trace elements accumulated in plant leaves in an outdoor smoking area of a ...201626662301
essential oil of the leaves of eugenia uniflora l.: antioxidant and antimicrobial properties.essential oil (eo) of the leaves of eugenia uniflora l. (brazilian cherry tree) was evaluated for its antioxidant, antibacterial and antifungal properties. the acute toxicity of the eo administered by oral route was also evaluated in mice. the eo exhibited antioxidant activity in the dpph, abts and frap assays and reduced lipid peroxidation in the kidney of mice. the eo also showed antimicrobial activity against two important pathogenic bacteria, staphylococcus aureus and listeria monocytogenes, ...201222583648
isolation by pressurised fluid extraction (pfe) and identification using cpc and hplc/esi/ms of phenolic compounds from brazilian cherry seeds (eugenia uniflora l.).brazilian cherry seeds are a waste product from juice and frozen pulp production and, the seeds composition was investigated to valorize this by-product. compounds separation was performed with ethanol by pressurised fluid extraction (pfe). here we determine the effect of temperature (t), static time (st), number of cycles (c), and flush volume (vf) on the yield, composition and total phenolic content (tpc) of the seed extracts. t, st and their interaction positively influenced yield and tpc. ex ...201424128509
[fruit flies (diptera: tephritidae) and their parasitoids (hymenoptera: braconidae) associated to host plants in the southern region of bahia state].the association among anastrepha species, braconid parasitoids and host fruits in southern bahia is recorded. doryctobracon areolatus (szépligeti) was associated with a. serpentina (wied.) in pouteria caimito, a. bahiensis lima in helicostylis tomentosa, a. sororcula zucchi in eugenia uniflora, and a. obliqua (macquart) in spondias purpurea. anatrepha obliqua was unique in fruits of averrhoa carambola, but associated with d. areolatus, asobara anastrephae (muesebeck) and utetes anastrephae (vier ...201121710038
improving effects of the extracts from eugenia uniflora on hyperglycemia and hypertriglyceridemia in mice.etoh (70%) extracts from the leaves of eugenia uniflora were separated into six fractions with different polarity and molecular size, i.e. np-1-np-6. in an oral glucose tolerance test, np-1 and 4 inhibited the increase in plasma glucose level. however, in an intraperitoneal glucose tolerance test, such an inhibitory effect was not seen. thus, the effects of np-1 and 4 were apparently due to the inhibition of glucose absorption from the intestine. in a sucrose tolerance test, all fractions inhibi ...199910624893
volatile constituents of eugenia uniflora leaf oil. 19883212089
preliminary pharmacological studies on eugenia uniflora leaves: xanthine oxidase inhibitory activity.eugenia uniflora is widely used in paraguayan folk medicine. a hydroalcoholic extract of the leaves showed some central nervous system activity in hippocratic screening when given intraperitoneally, but little to no acute or subacute toxicity in doses up to 4200 mg/kg orally in balb c mice. the ld50 of the extract was 220 mg/kg i.p. in mice. a decoction or infusion of the leaves is recommended for treating gout by native herbalists. the known flavonoids quercitrin, quercetin, myricitrin and myri ...19873437769
[not available]. 201520273282
bioactive compounds found in brazilian cerrado fruits.functional foods include any natural product that presents health-promoting effects, thereby reducing the risk of chronic diseases. cerrado fruits are considered a source of bioactive substances, mainly phenolic compounds, making them important functional foods. despite this, the losses of natural vegetation in the cerrado are progressive. hence, the knowledge propagation about the importance of the species found in cerrado could contribute to the preservation of this biome. this review provides ...201526473827
antioxidant activity, ascorbic acid and total phenol of exotic fruits occurring in brazil.the antioxidant activity, ascorbic acid and phenolic content were studied in 10 exotic fruits from brazil: abiu, acerola, wax jambu, cashew, mamey sapote, carambola or star fruit, surinam cherry, longan, sapodilla and jaboticaba. the ascorbic acid was determined by 2,6-dichloroindophenol titrimetic methods and total phenols were measured colorimetrically using the folin-ciocalteu reagent. the antioxidant activity was investigated with three different methods: hypochlorous acid scavenging activit ...200918785051
ethnomedicinal survey of a maroon community in brazil's atlantic tropical forest.considerable medicinal plant research in brazil has focused on indigenous and mixed-race (caboclo and caiçara) communities, but relatively few studies have examined the medicinal plants and associated healing traditions of the descendants of enslaved africans. this study surveyed the medicinal plants employed by a relatively isolated maroon community of afro-brazilians in the atlantic coastal rainforests of bahia, brazil, a global biodiversity hotspot. the studied community is exceptional in tha ...201626802786
autophagy induced by purple pitanga (eugenia uniflora l.) extract triggered a cooperative effect on inducing the hepatic stellate cell death.activated hepatic stellate cells (hsc) are the major source of collagen i in liver fibrosis. eugenia uniflora l. is a tree species that is widely distributed in south america. e. uniflora l. fruit-popularly known as pitanga-has been shown to exert beneficial properties. autophagy contributes to the maintenance of cellular homeostasis and survival under stress situation, but it has also been suggested to be an alternative cell death pathway. mitochondria play a pivotal role on signaling cell deat ...201727744523
identification and quantification of oxidoselina-1,3,7(11)-trien-8-one and cyanidin-3-glucoside as one of the major volatile and non-volatile low-molecular-weight constituents in pitanga pulp.the pulp of pitanga (eugenia uniflora l.) is used to prepare pitanga juice. however, there are no reports on the identification and quantification of the main constituents in pitanga pulp. the aim of this study was to identify and quantify the major volatile and non-volatile low-molecular-weight constituents of the pulp. isolation of volatile compounds was performed by solvent-assisted flavor evaporation technique. characterization of the main volatile and non-volatile constituents was performed ...201526394146
cytotoxic and antioxidative potentials of ethanolic extract of eugenia uniflora l. (myrtaceae) leaves on human blood cells.eugenia uniflora is used in the brazilian folk medicine to treat intestinal disorders and hypertension. however, scanty information exist on its potential toxicity to human, and little is known on its antioxidant activity in biological system. hence, we investigated for the first time the potential toxic effects of ethanolic extract (etoh) of e. uniflora (eeeu) in human leukocytes and erythrocytes, as well as its influence on membrane erythrocytes osmotic fragility. in addition, eeeu was chemica ...201627694006
abandoned coal mining sites: using ecotoxicological tests to support an industrial organic sludge amendment.the different stages involved in coal mining-related activities result in a degraded landscape and sites associated with large amounts of dumped waste material. remediation of these contaminated soils can be carried out by application of industrial organic sludge if the concerns regarding the potential negative environmental impacts of this experimental practice are properly addressed. in this context, the objective of this study was to use ecotoxicological tests to determine the quantity of org ...201323114837
effect of forest fragmentation on microsporogenesis and pollen viability in eugenia uniflora, a tree native to the atlantic forest.habitat fragmentation, caused by the expansion of agriculture in natural areas, may be one of the strongest impacts humans have on the ecosystem. these changes can decrease the number of individuals in a population, leading to endogamy. in allogamous species, endogamy can have a negative effect on reproductive capacity. in this study, we analyzed the effects of forest fragmentation on microsporogenesis and pollen viability in eugenia uniflora l., a tree species native to the atlantic forest. we ...201223079985
development of anastrepha fraterculus (diptera: tephritidae) related to the phenology of blueberry, blackberry, strawberry guava, and surinam cherry fruits.anastrepha fraterculus (wiedemann, 1830) is the main pest of temperate climate orcharding. the study investigated the development of a. fraterculus related to phenological stage of blueberry, blackberry, strawberry guava, and surinam cherry trees. the phenological stages i (green fruits), ii (intermediate ripening stage of fruits), and iii (fruits close to harvesting) were determined, and they are from 8th, 10th, and 11th week; 6th, 8th, and 9th week; 8th, 13th, and 16th week; and 5th, 6th, and ...201526470120
herbivory by an introduced asian weevil negatively affects population growth of an invasive brazilian shrub in florida.the enemy release hypothesis (erh) is often cited to explain why some plants successfully invade natural communities while others do not. this hypothesis maintains that plant populations are regulated by coevolved enemies in their native range but are relieved of this pressure where their enemies have not been co-introduced. some studies have shown that invasive plants sustain lower levels of herbivore damage when compared to native species, but how damage affects fitness and population dynamics ...201222928418
involvement of monoaminergic systems in the antidepressant-like effect of eugenia brasiliensis lam. (myrtaceae) in the tail suspension test in mice.several species of eugenia l. are used in folk medicine for the treatment of various diseases. eugenia brasiliensis is used for the treatment of inflammatory diseases, whereas eugenia. uniflora is used for the treatment of symptoms related to depression and mood disorders, and is used in brazil by the guarani indians as a tonic stimulant.201222884868
liposomes incorporating essential oil of brazilian cherry (eugenia uniflora l.): characterization of aqueous dispersions and lyophilized formulations.multilamellar liposomes incorporating essential oil of brazilian cherry (eugenia uniflora l.) leaves were produced by dry film hydration. gas chromatography demonstrated the compounds found in the essential oil were effectively incorporated in the aqueous dispersions of liposomes. differential scanning calorimetry analyses revealed the incorporation of the essential oil did not cause phase separation in the membrane structure; the gel-liquid crystalline transition temperature (main transition) r ...201020690790
bioactivity of crude ethanol extract and fractions of eugenia uniflora (myrtaceae) in the hepatopancreas of oreochromis niloticus l.this study evaluates the bioactivity of the crude ethanol extract and ethyl acetate, hexane and chloroform fractions obtained from eugenia uniflora leaves using the hepatopancreas of oreochromis niloticus l. as an experimental model. the ethanol extract and fractions were administered to the fish orally with their feed. twenty-four hours later, the fish were sacrificed and their livers dissected, fixed in neutral formalin, embedded in paraffin and sectioned. histological analyses were performed ...200920140296
leaf gas exchange, chlorophyll fluorescence and pigment indexes of eugenia uniflora l. in response to changes in light intensity and soil flooding.the interactive effects of changing light intensity and soil flooding on the photosynthetic performance of eugenia uniflora l. (myrtaceae) seedlings in containers were examined. two hypotheses were tested: (i) the photosynthetic apparatus of shade-adapted leaves can be rapidly acclimated to high light after transfer from shade to full sun, and (ii) photosynthetic acclimation to changing light intensity may be influenced by soil flooding. seedlings cultivated in a shade house (40% of full sun, ap ...201019923194
photosynthesis and oxidative stress in the restinga plant species eugenia uniflora l. exposed to simulated acid rain and iron ore dust deposition: potential use in environmental risk assessment.the brazilian sandy coastal plain named restinga is frequently subjected to particulate and gaseous emissions from iron ore factories. these gases may come into contact with atmospheric moisture and produce acid rain. the effects of the acid rain on vegetation, combined with iron excess in the soil, can lead to the disappearance of sensitive species and decrease restinga biodiversity. the effects of iron ore dust deposition and simulated acid rain on photosynthesis and on antioxidant enzymes wer ...200919321190
comparison of the interfacial properties of eugenia uniflora and triticum vulgaris lectins.we have investigated the interfacial and dielectric properties of eunisl, a recently purified lectin obtained from seeds of eugenia uniflora (eunisl), through surface pressure (pi) and surface potential (deltav) measurements of its floating monolayers at the 2.0<ph<9.0 range, and compared the corresponding results to those obtained for langmuir films of triticum vulgaris (wga). the variation of pi and deltav as a function of the molecular area reveals that while the interfacial properties of bot ...200918996683
influence of different extraction methods on the yield and linalool content of the extracts of eugenia uniflora l.this work has been developed using a sylvestral fruit tree, native to the brazilian forest, the eugenia uniflora l., one of the mirtaceae family. the main goal of the analytical study was focused on extraction methods themselves. the method development pointed to the clevenger extraction as the best yield in relation to sfe and soxhlet. the sfe method presented a good yield but showed a big amount of components in the final extract, demonstrating low selectivity. the essential oil extracted was ...200618970765
life history of the gall-maker eugeniamyia dispar maia, mendonça-jr. & romanowski, 1996 (diptera, cecidomyiidae).the development of the galls of the midge eugeniamyia dispar maia, mendonça-jr. & romanowski, 1996 (diptera: cecidomyiidae) was monitored weekly on its host plant, eugenia uniflora (myrtaceae). the work was carried out in the urban area of porto alegre, rs, brazil, from october 1993 to september 1995. galls were collected from the field and raised in the laboratory to obtain adults. the females oviposit on young leaves of the host plant, with the first instar larvae inducing the gall, which is u ...200212489401
[suitability of wild underexploited vegetables from the argentine chaco as a food resource].the nutritional value of wild underexploited vegetable samples collected in the argentine chaco was investigated. leaves from hipochaeris sp.-, coronopus didimus and portulaca olearacea; fruits from zyziphus sativa, brumelia obtusifolia and eugenia uniflora; and roots of canna coccinea were included in this work; several separate samples being taken at least during two consecutive harvesting seasons. values for moisture, protein, total lipids, crude fiber, ash, reducing and total sugars, starch, ...200011464672
efficient, highly enantioselective synthesis of selina-1,3, 7(11)-trien-8-one, a major component of the essential oil of eugenia uniflora.the first synthesis of selina-1,3,7(11)-trien-8-one (1), a major constituent of the essential oil from the leaves of eugenia uniflora, has been accomplished, with excellent stereo- and regiocontrol, in eight steps and in 12% overall yield from the known octalone derivative 2a.200011000042
evaluation of antioxidant, immunomodulatory, and cytotoxic action of fractions from eugenia uniflora l. and eugenia malaccensis l.: correlation with polyphenol and flavanoid content.an increasing number of biological activities presented by medicinal plants has been investigated over the years, and they are used in the search for new substances with lower side effects. eugenia uniflora l. and eugenia malaccensis l. (myrtaceae) have many folk uses in various countries. this current study was designed to quantify the polyphenols and flavonoids contents and evaluate the immunomodulatory, antioxidant, and cytotoxic potentials of fractions from e. uniflora l. and e. malaccensis ...201324089599
rapid structural and compositional change in an old-growth subtropical forest: using plant traits to identify probable drivers.recent studies have shown directional changes in old-growth tropical forests, but changes are complex and diverse, and their drivers unclear. here, we report rapid net structural and compositional changes in an old-growth subtropical forest and we assess the functional nature of these changes to test hypothetical drivers including recovery from past disturbances, reduction in ungulate browsing, co2 fertilization, and increases in rainfall and temperature. the study relies on 15 years of demograp ...201324069204
synergisms in alpha-glucosidase inhibition and antioxidant activity of camellia sinensis l. kuntze and eugenia uniflora l. ethanolic extracts.camellia sinensis, the most consumed and popular beverages worldwide, and eugenia uniflora, a brazilian native species, have been already confirmed to have beneficial effects in the treatment of diabetes mellitus. however, their potential acting together against an enzyme linked to this pathology has never been exploited.201728250662
microencapsulation of purple brazilian cherry juice in xanthan, tara gums and xanthan-tara hydrogel matrixes.the purple brazilian cherry (eugenia uniflora l.) juice was encapsulated in xanthan, tara and xanthan-tara hydrogel matrixes. encapsulation efficiency, differential scanning calorimetry (dsc), x-ray diffractometry, release profile, stability of carotenoids, phenolic compounds and antioxidant activity of microparticles were evaluated. encapsulation was confirmed. the highest encapsulation efficiency was obtained with xanthan gum and hydrogel was mostly indicated for the release of carotenoids in ...201324053801
caribbean fruit fly,anastrepha suspensa (loew), attraction to host fruit and host kairomones.extracts of 22 fruits were tested for their attractancy toanastrepha suspensa (loew), the caribbean fruit fly. box-orange, calamondin, carambola, cattley guava, loquat, and surinam-cherry were about equal in attractiveness to males and females. nine synthetic chemicals, including four found in box-orange ripe seed, were attractive to females. five synthetic chemicals, including two in box-orange ripe seed, were attractive to males. farnesol,α-phellandrene, and 3-carene were highest in attractive ...199424242123
quantification of bioactive compounds in pulps and by-products of tropical fruits from brazil.this study aimed to quantify the levels of resveratrol, coumarin, and other bioactives in pulps and by-products of twelve tropical fruits from brazil obtained during pulp production process. pineapple, acerola, monbin, cashew apple, guava, soursop, papaya, mango, passion fruit, surinam cherry, sapodilla, and tamarind pulps were evaluated as well as their by-products (peel, pulp's leftovers, and seed). total phenolic, anthocyanins, yellow flavonoids, β-carotene and lycopene levels were also deter ...201424054258
phylogenomic relationship of feijoa (acca sellowiana (o.berg) burret) with other myrtaceae based on complete chloroplast genome sequences.given their distribution, importance, and richness, myrtaceae species comprise a model system for studying the evolution of tropical plant diversity. in addition, chloroplast (cp) genome sequencing is an efficient tool for phylogenetic relationship studies. feijoa [acca sellowiana (o. berg) burret; cn: pineapple-guava] is a myrtaceae species that occurs naturally in southern brazil and northern uruguay. feijoa is known for its exquisite perfume and flavorful fruits, pharmacological properties, o ...201728185042
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