| efficacy of some essential oils and their constituents on few ubiquitous molds. | six essential oils of mentha arvensis, mentha piperita, anethum sowa, cymbopogon winterianus, nardostachys jatamansi, and commiphora mukul were selected and tested for their efficacy against aspergillus flavus, a. fumigatus, a. sulphureus, mucor fragilis, and rhizopus stolonifer. these oils were fungistatic or fungicidal to one or the other molds, depending upon the concentrations. | 1978 | 749414 |
| antigenic cross-reactivity among monoterpene cyclases from grand fir and induction of these enzymes upon stem wounding. | a major wound response in grand fir (abies grandis) sapling stems is the rapid increase in monoterpene production at the site of injury. monoterpene cyclases (synthases) catalyze the formation of monoterpenes from geranyl pyrophosphate, and total cyclase activity increases markedly on wounding. at least six distinct cyclases, producing different monoterpene products, have been isolated from wounded grand fir saplings and characterized. the predominant wound-inducible cyclase produces both alpha- ... | 1992 | 1567222 |
| laboratory evaluation of essential oil of mentha piperita linn. against trichophyton mentagrophytes. | | 1988 | 3255748 |
| antiviral substances in plants of the mint family (labiatae). 3. peppermint (mentha piperita) and other mint plants. | | 1967 | 4290278 |
| [pathophysiologic changes of tannin content in mentha piperita l. under the effect of infection with puccinia menthae pers]. | | 1969 | 5369505 |
| effects of essential oil from mint (mentha piperita) on salmonella enteritidis and listeria monocytogenes in model food systems at 4 degrees and 10 degrees c. | the effect of mint (mentha piperita) essential oil (0.5, 1.0, 1.5 and 2.0%, v/w) on salmonella enteritidis and listeria monocytogenes in a culture medium and three model foods; tzatziki (ph 4.5), taramosalata (ph 5.0) and pâté (ph 6.8), inoculated at 10(7) cfu g-1, at 4 degrees and 10 degrees c for ca 1 week was studied. in the culture medium supplemented with the essential oil, no growth was observed over 2 d at 30 degrees c determined by a conductance method with a malthus 2000 growth analyser ... | 1995 | 7615414 |
| monoterpene synthases from gymnosperms and angiosperms: stereospecificity and inactivation by cysteinyl- and arginyl-directed modifying reagents. | to further define specific structural and mechanistic differences among monoterpene synthases from divergent plant sources, the stereospecificity of the enzyme-catalyzed isomerization of geranyl pyrophosphate to linalyl pyrophosphate and the subsequent cyclization to monoterpene olefins (which have been well established for monoterpene synthases from herbaceous angiosperms) were examined for monoterpene synthases from a conifer, lodgepole pine (pinus contorta). the chiral monoterpenes isolated f ... | 1995 | 7625832 |
| labiatae allergy: systemic reactions due to ingestion of oregano and thyme. | there are no cases described in the medical literature of systemic allergic reactions due to oregano (origanum vulgare) or thyme (thymus vulgaris). these herbs belong to the lamiaceae (labiatae) family which comprises other plants such as hyssop (hyssopus officinalis), basil (ocimum basilicum), marjoram (origanum majorana), mint (mentha piperita), sage (salvia officinalis) and lavender (lavandula officinalis). | 1996 | 8630713 |
| screening of medicinal plants for induction of somatic segregation activity in aspergillus nidulans. | knowledge about mutagenic properties of plants commonly used in traditional medicine is limited. a screening for genotoxic activity was carried out in aqueous or alcoholic extracts prepared from 13 medicinal plants widely used as folk medicine in cuba: lepidium virginicum l. (brassicaceae): plantago major l. and plantago lanceolata l. (plantaginaceae); ortosiphon aristatus blume, mentha x piperita l., melissa officinalis l. and plectranthus amboinicus (lour.) spreng. (lamiaceae); cymbopogon citr ... | 1996 | 8771452 |
| effect of plant extracts and systemic fungicide on the pineapple fruit-rotting fungus, ceratocystis paradoxa. | antifungal activities of extracts of sixteen plants were tested against ceratocystis paradoxa which causes soft rot of pineapples. xanthium strumarium was the most effective followed by allium sativum. the effectiveness of various extracts against c. paradoxa was in the decreasing order of meriandra bengalensis, mentha piperita, curcuma longa, phlogacanthus thyrsiflorus, toona ciliata, vitex negundo, azadirachta indica, eupatorium birmanicum, ocimum sanctum and leucas aspera. extracts of cassia ... | 1996 | 9022263 |
| isolation and bacterial expression of a sesquiterpene synthase cdna clone from peppermint (mentha x piperita, l.) that produces the aphid alarm pheromone (e)-beta-farnesene. | (e)-beta-farnesene is a sesquiterpene semiochemical that is used extensively by both plants and insects for communication. this acyclic olefin is found in the essential oil of peppermint (mentha x piperita) and can be synthesized from farnesyl diphosphate by a cell-free extract of peppermint secretory gland cells. a cdna from peppermint encoding (e)-beta-farnesene synthase was cloned by random sequencing of an oil gland library and was expressed in escherichia coli. the corresponding synthase ha ... | 1997 | 9371761 |
| a family of transketolases that directs isoprenoid biosynthesis via a mevalonate-independent pathway. | isopentenyl diphosphate, the common precursor of all isoprenoids, has been widely assumed to be synthesized by the acetate/mevalonate pathway in all organisms. however, based on in vivo feeding experiments, isopentenyl diphosphate formation in several eubacteria, a green alga, and plant chloroplasts has been demonstrated very recently to originate via a mevalonate-independent route from pyruvate and glyceraldehyde 3-phosphate as precursors. here we describe the cloning from peppermint (mentha x ... | 1998 | 9482845 |
| anti-nociceptive and anti-inflammatory effects of some jordanian medicinal plant extracts. | the anti-nociceptive effect of ethanolic extract of 11 traditionally used jordanian plants was studied by using the acetic acid-induced writhing and hot-plate test in mice. the anti-inflammatory effect of these plants was determined by xylene-induced ear oedema in mice and cotton pellet granuloma test in rats. mentha piperita, cinnamomum zeylanicum, apium graveolens, eucalyptus camaldulentis, and ruta graveolens possess an anti-nociceptive effect against both acetic acid-induced writhing and hot ... | 1998 | 9582001 |
| control of aspergillus flavus in maize with plant essential oils and their components. | the effects of 11 plant essential oils for maize kernel protection against aspergillus flavus were studied. tests were conducted to determine optimal levels of dosages for maize protection, effects of combinations of essential oils, and residual effects and toxicity of essential oils to maize plants. principal constituents of eight essential oils were tested for ability to protect maize kernels. essential oils of cinnamomum zeylanicum (cinnamon), mentha piperita (peppermint), ocimum basilicum (b ... | 1998 | 9709236 |
| anti-hiv-1 activity of herbs in labiatae. | the anti-hiv-1 activity of aromatic herbs in labiatae was evaluated in vitro. forty five extract from among 51 samples obtained from 46 herb species showed significant inhibitory effects against hiv-1 induced cytopathogenicity in mt-4 cells. in particular, the aqueous extracts of melissa officinalis, a family of mentha x piperita "grapefruit mint," mentha x piperita var. crispa, ocimum basilicum cv "cinnamon," perilla frutescens var. crispa f. viridis, prunella vulgaris subsp. asiatica and satur ... | 1998 | 9743251 |
| isoprenoid biosynthesis via a mevalonate-independent pathway in plants: cloning and heterologous expression of 1-deoxy-d-xylulose-5-phosphate reductoisomerase from peppermint. | two distinct pathways are utilized by plants for the biosynthesis of isopentenyl diphosphate, the universal precursor of isoprenoids. the classical acetate/mevalonate pathway operates in the cytosol, whereas plastidial isoprenoids originate via a novel mevalonate-independent route that involves a transketolase-catalyzed condensation of pyruvate and d-glyceraldehyde-3-phosphate to yield 1-deoxy-d-xylulose-5-phosphate as the first intermediate. based on in vivo feeding experiments, rearrangement a ... | 1999 | 10222052 |
| isopentenyl diphosphate biosynthesis via a mevalonate-independent pathway: isopentenyl monophosphate kinase catalyzes the terminal enzymatic step. | in plants, the biosynthesis of isopentenyl diphosphate, the central precursor of all isoprenoids, proceeds via two separate pathways. the cytosolic compartment harbors the mevalonate pathway, whereas the newly discovered deoxyxylulose 5-phosphate pathway, which also operates in certain eubacteria, including escherichia coli, is localized to plastids. only the first two steps of the plastidial pathway, which involve the condensation of pyruvate and glyceraldehyde 3-phosphate to deoxyxylulose 5-ph ... | 1999 | 10570138 |
| probing essential oil biosynthesis and secretion by functional evaluation of expressed sequence tags from mint glandular trichomes. | functional genomics approaches, which use combined computational and expression-based analyses of large amounts of sequence information, are emerging as powerful tools to accelerate the comprehensive understanding of cellular metabolism in specialized tissues and whole organisms. as part of an ongoing effort to identify genes of essential oil (monoterpene) biosynthesis, we have obtained sequence information from 1,316 randomly selected cdna clones, or expressed sequence tags (ests), from a peppe ... | 2000 | 10717007 |
| inhibition of non-haem iron absorption in man by polyphenolic-containing beverages. | the effects of different polyphenol-containing beverages on fe absorption from a bread meal were estimated in adult human subjects from the erythrocyte incorporation of radio-fe. the test beverages contained different polyphenol structures and were rich in either phenolic acids (chlorogenic acid in coffee), monomeric flavonoids (herb teas, camomile (matricaria recutita l.), vervain (verbena officinalis l.), lime flower (tilia cordata mill.), pennyroyal (mentha pulegium l.) and peppermint (mentha ... | 1999 | 10999016 |
| analysis of oxidative stress and wound-inducible dinor isoprostanes f(1) (phytoprostanes f(1)) in plants. | isoprostanes f(2) are arachidonate autoxidation products in mammals that have been shown to be induced during several human disorders associated with enhanced free-radical generation. isoprostanes f(2) represent not only extremely reliable markers of oxidative stress in vivo, but they also exert potent biological effects. therefore, it has been postulated that isoprostanoids are mediators of oxidant injury in vivo. higher plants, however, do not synthesize arachidonic acid or isoprostanes. here ... | 2000 | 11080305 |
| effects of peppermint (mentha piperita l.) extracts on experimental allergic rhinitis in rats. | the present study was carried out to clarify the effects of extracts of the leaves of mentha piperita l. on experimental allergic rhinitis. the 50% etoh extract of peppermint inhibited histamine release from rat peritoneal mast cells induced by compound 48/80. the effect was dose-dependent and significant inhibition was observed at a concentration of 3 microg/ml. in addition, the 50% etoh eluate separated from the 50% etoh extract of peppermint by column chromatography (diaion hp-20) was also ef ... | 2001 | 11201253 |
| effect of aqueous extracts of some plants of lamiaceae family on the growth of yarrowia lipolytica. | aqueous extracts of some plants belonging to the lamiaceae family (sideritis montana, origanum dictamnus, mentha piperita, rosmarinus officinallis and origanum marjorana) caused an important increase of the lag time of yarrowia lipolytica. especially, origanum dictamnus and rosmarinus officinallis extracts enhanced the lag time considerably and influenced negatively the specific growth rate of this yeast. in culture media having low c/n ratio, all plant extracts caused an increase of the biomass ... | 2001 | 11252500 |
| demonstration that menthofuran synthase of mint (mentha) is a cytochrome p450 monooxygenase: cloning, functional expression, and characterization of the responsible gene. | (+)-menthofuran is an undesirable monoterpenoid component of peppermint (mentha x piperita) essential oil that is derived from the alpha,beta-unsaturated ketone (+)-pulegone. microsomal preparations, from the oil gland secretory cells of a high (+)-menthofuran-producing chemotype of mentha pulegium, transform (+)-pulegone to (+)-menthofuran in the presence of nadph and molecular oxygen, implying that menthofuran is synthesized by a mechanism analogous to that of mammalian liver cytochrome p450s ... | 2001 | 11396930 |
| antiulcerogenic effect of some gastrointestinally acting plant extracts and their combination. | extracts from the plants iberis amara, melissa officinalis, matricaria recutita, carum carvi, mentha x piperita, glycyrrhiza glabra, angelica archangelica, silybum marianum and chelidonium majus, singly and combined in the form of a commercial preparation, stw 5 (iberogast) and a modified formulation, stw 5-ii, lacking the last 3 constituents, were tested for their potential anti-ulcerogenic activity against indometacin induced gastric ulcers of the rat as well as for their antisecretory and cyt ... | 2001 | 11505785 |
| inhibition by the essential oils of peppermint and spearmint of the growth of pathogenic bacteria. | the effects of the, essential oils of peppermint (mentha piperita l.), spearmint mentha spicata l.) and japanese mint (mentha, arvensis l.), of four major constituents of the esssential oil of peppermint, and of three major constituents of the essential oil of spearmint, on the proliferation of helicobacter pylori, salmonella enteritidis, escherichia coli o157:h7, methicillin-resistant staphylococcus aureus (mrsa) and methicillin sensitive staphylococccus aureus (mssa) were examined. the essent ... | 2001 | 11549238 |
| final report on the safety assessment of mentha piperita (peppermint) oil, mentha piperita (peppermint) leaf extract, mentha piperita (peppermint) leaf, and mentha piperita (peppermint) leaf water. | mentha piperita (peppermint) oil, mentha piperita (peppermint) leaf extract, mentha piperita (peppermint) leaf, mentha piperita (peppermint) leaf water are obtained from the mentha piperita plant. the oil is currently used in cosmetic formulations as a fragrance component, but previously had been also described as a denaturant. the extract and leaves are described as biological additives, but only the extract is reported to be used. peppermint water is described as a flavoring agent or fragrance ... | 2001 | 11766133 |
| antiallergic effect of flavonoid glycosides obtained from mentha piperita l. | six flavonoid glycosides, eriocitrin (1), narirutin (2), hesperidin (3), luteolin-7-o-rutinoside (4), isorhoifolin (5), diosmin (6), rosmarinic acid (7) and 5,7-dihydroxycromone-7-o-rutinoside (8), were isolated from the aerial part of mentha piperita l. among these compounds, compound 4 showed a potent inhibitory effect on histamine release induced by compound 48/80 and antigen-antibody reaction. this compound was more effective than luteolin and luteolin-7-o-glucoside in inhibiting histamine r ... | 2002 | 11853178 |
| [quality evaluation of essential oils]. | essential oils on the market were analyzed using gc-ms and the main ingredients of each essential oil were quantified. analysis of the essential oil of lavandula officinalis (lavender oil) showed that each sample had a different ratio of the contents of main ingredients, such as linalool, linalyl acetate, and camphor. in addition, some commercial lavender oils were analyzed by gc-ms for comparison with the lavandula flagrans (lavandin oil) and the reference standard. as a result of this analysis ... | 2002 | 11905050 |
| influence of dietary supplementation of herb extracts on volatile sulfur production in pig large intestine. | volatile sulfur compounds (vs) are generated in the large intestine by the bacterial metabolism of sulfate and sulfur amino acids. vs are potentially harmful to the host. the effect of dietary supplementation of herb extracts on volatile sulfur production in the large intestine of pig was evaluated in this study. the extracts perilla frutescens (soyou), mentha piperita (peppermint), and ajuga decumbens (kiransou) were fed to pigs equipped with a permanent cannula at the cecum. cecal digesta were ... | 2002 | 12026183 |
| [influence of spiced feed additives on taste of hen's eggs]. | the effect of the spices garlic (allium sativum), extract from garlic, sage (salvia officinalis), caraway (carum carvi), peppermint (mentha piperita), fennel (foeniculum vulgare), thyme (thymus vulgaris), paprika (capsicum annuum), marjoram (majorana hortensis), cardamom (elettaria cardamomum) and sausage-mix fed to white hybrides on the quality of eggs (n = 705) was tested by 10 qualified persons. changes in smell or taste were partly significant; a direct improvement is hard to induce. a well ... | 2002 | 12058595 |
| antimicrobial screening of mentha piperita essential oils. | essential oils of peppermint mentha piperita l. (lamiaceae), which are used in flavors, fragrances, and pharmaceuticals, were investigated for their antimicrobial properties against 21 human and plant pathogenic microorganisms. the bioactivity of the oils menthol and menthone was compared using the combination of in vitro techniques such as microdilution, agar diffusion, and bioautography. it was shown that all of the peppermint oils screened strongly inhibited plant pathogenic microorganisms, w ... | 2002 | 12083863 |
| [efficiency of the use of peppermint (mentha piperita l) essential oil inhalations in the combined multi-drug therapy for pulmonary tuberculosis]. | the essential oil of peppermint (mentha piperita l.) has been found to have an in vitro pronounced and equal antimycobacterial effect in doses of 300 and 600 micrograms/ml, respectively. the use of its inhalations (upon 20-min heat evaporation into the room atmosphere for 2 months) as a supplement to combined multidrug therapy for pulmonary tuberculosis has indicated their significantly high positive effect in terms of abacillation (by 26.8 and 58.5% with doses of 0.01 and 0.005 ml/m3, respectiv ... | 2002 | 12125251 |
| antimicrobial activity and chemical composition of some essential oils. | in this study the composition and antimicrobial properties of essential oils obtained from origanum onites, mentha piperita, juniperus exalsa, chrysanthemum indicum, lavandula hybrida, rosa damascena, echinophora tenuifolia, foeniculum vulgare were examined. to evaluate the in vitro antibacterial activities of these eight aromatic extracts; their in vitro antimicrobial activities were determined by disk diffusion testing, according to the nccls criteria. escherichia coli (attc 25922), staphyloco ... | 2002 | 12510839 |
| activity of essential oils from mediterranean lamiaceae species against food spoilage yeasts. | the essential oils from aerial parts of melissa officinalis, lavandula angustifolia, salvia officinalis, and mentha piperita were analyzed by gas chromatography and gas chromatography-mass spectrometry. their antimicrobial activities were evaluated against five food spoilage yeasts, torulaspora delbrueckii, zygosaccharomyces bailii, pichia membranifaciens, dekkera anomala, and yarrowia lipolytica. saccharomyces cerevisiae was also used as a reference. the oils were preliminarily screened by a di ... | 2003 | 12696686 |
| investigation of biochemical and histopathological effects of mentha piperita l. and mentha spicata l. on kidney tissue in rats. | peppermint plants have been used as a herbal medicine for many conditions, including loss of appetite, common cold, bronchitis, sinusitis, fever, nausea, vomiting and indigestion. this study is aimed at investigating the biochemical and histological effects of mentha piperita l., growing in the yenisar bademli town of isparta city, and mentha spicata l., growing on the anamas high plateau of isparta city, on rat kidney tissue. forty-eight male wistar albino rats weighing 200-250 g were used for ... | 2003 | 12755472 |
| antimicrobial and antioxidant activities of three mentha species essential oils. | the present study describes the antimicrobial activity and free radical scavenging capacity (rsc) of essential oils from mentha aquatica l., mentha longifolia l., and mentha piperita l. the chemical profile of each essential oil was determined by gc-ms and tlc. all essential oils exhibited very strong antibacterial activity, in particularly against esherichia coli strains. the most powerful was m. piperita essential oil, especially towards multiresistant strain of shigella sonei and micrococcus ... | 2003 | 12802721 |
| virucidal effect of peppermint oil on the enveloped viruses herpes simplex virus type 1 and type 2 in vitro. | the virucidal effect of peppermint oil, the essential oil of mentha piperita, against herpes simplex virus was examined. the inhibitory activity against herpes simplex virus type 1 (hsv-1) and herpes simplex virus type 2 (hsv-2) was tested in vitro on rc-37 cells using a plaque reduction assay. the 50% inhibitory concentration (ic50) of peppermint oil for herpes simplex virus plaque formation was determined at 0.002% and 0.0008% for hsv-1 and hsv-2, respectively. peppermint oil exhibited high le ... | 2003 | 13678235 |
| bio-fermentation of modified flavonoids: an example of in vivo diversification of secondary metabolites. | a bio-fermentation technique was used for the in vivo diversification of flavonoid structures based on expression in escherichia coli of six o-methyltransferases (omts) from mentha x piperita and one o-glucosyltransferase (gt) each from arabidopsis thaliana and allium cepa. enzymes were shown to be regio-specific in in vitro experiments and modified a broad range of flavonoid substrates at various positions. using the flavonol quercetin as a model substrate, we show that the product spectrum pro ... | 2004 | 14697269 |
| investigation of biochemical and histopathological effects of mentha piperita labiatae and mentha spicata labiatae on liver tissue in rats. | the plant mentha piperita, or peppermint, is commonly used in the treatment of loss of appetite, common cold, bronchitis, sinusitis, fever, nausea and vomiting, and indigestion as a herbal agent. in this study, we aimed to investigate biochemical and histological effects of m. piperita labiatae, growing in the yenisar bademli town of isparta city, and mentha spicata labiatae, growing in the anamas high plateau of the yenisar bademli town, on the rat liver tissue. forty-eight male wistar albino r ... | 2004 | 15027812 |
| formation of monoterpenes in antirrhinum majus and clarkia breweri flowers involves heterodimeric geranyl diphosphate synthases. | the precursor of all monoterpenes is the c10 acyclic intermediate geranyl diphosphate (gpp), which is formed from the c5 compounds isopentenyl diphosphate and dimethylallyl diphosphate by gpp synthase (gpps). we have discovered that antirrhinum majus (snapdragon) and clarkia breweri, two species whose floral scent is rich in monoterpenes, both possess a heterodimeric gpps like that previously reported from mentha piperita (peppermint). the a. majus and c. breweri cdnas encode proteins with 53% a ... | 2004 | 15031409 |
| [diversity of phytophagous and pathogens and their damage to mints (mentha)]. | the aim of this work was to estimate the phytopathologic condition of mints grown and self-growing in kaunas botanical garden of vytautas magnus university and elsewhere in lithuania; and to identify the specific constitution, the spread and damage of the main pests and disease agents. material and methods: observations and examination were carried out with two local, four introduced mint species and with four hybrids in 1997-2003. we estimated the plant condition by identifying the intensity of ... | 2004 | 15299999 |
| effects of peppermint teas on plasma testosterone, follicle-stimulating hormone, and luteinizing hormone levels and testicular tissue in rats. | to justify the effects of mentha piperita labiatae and mentha spicata labiatae herbal teas on plasma total testosterone, luteinizing hormone, and follicle-stimulating hormone levels and testicular histologic features. we performed this study because of major complaints in our area from men about the adverse effects of these herbs on male reproductive function. | 2004 | 15302514 |
| simultaneous determination of the inhibitory potency of herbal extracts on the activity of six major cytochrome p450 enzymes using liquid chromatography/mass spectrometry and automated online extraction. | here we describe a liquid chromatography/mass spectrometry (lc/ms) method with automated online extraction (lc/lc/ms) to simultaneously determine the in vitro inhibitory potency of herbal extracts on six major human drug-metabolising cytochrome p450 enzymes. substrates were incubated with a commercially available mixture of cyp1a2/2c8/2c9/2c19/2d6 and 3a4 from baculovirus-infected insect cells and the resulting metabolites were quantified with lc/lc/ms using electrospray ionisation in the select ... | 2004 | 15384148 |
| aromatic plants essential oils activity on fusarium verticillioides fumonisin b(1) production in corn grain. | the minimum inhibitory concentration (mic) of origanum vulgare, aloysia triphylla, aloysia polystachya and mentha piperita essential oils (eos) against fusarium verticillioides m 7075 (f. moniliforme, sheldon) were assessed, using the semisolid agar antifungal susceptibility (saas) technique. o. vulgare, a. triphylla, a. polystachya and m. piperita eos were evaluated at final concentrations of 10, 20, 40, 50, 100, 200, 250, 500, 1000 and 1500 epsilonl per litre (epsilonl/l) of culture medium. a. ... | 2004 | 15702272 |
| anti-candida activity of brazilian medicinal plants. | essential oils and ethanolic extracts from the leaves and/or roots of 35 medicinal plants commonly used in brazil were screened for anti-candida albicans activity. the oils were obtained by water-distillation using a clevenger-type system. essential oils from 13 plants showed anti-candida activity, including aloysia triphylla, anthemis nobilis, cymbopogon martini, cymbopogon winterianus, cyperus articulatus, cyperus rotundus, lippia alba, mentha arvensis, mikania glomerata, mentha piperita, ment ... | 2005 | 15707770 |
| monoterpene metabolism. cloning, expression, and characterization of menthone reductases from peppermint. | (-)-menthone is the predominant monoterpene produced in the essential oil of maturing peppermint (mentha x piperita) leaves during the filling of epidermal oil glands. this early biosynthetic process is followed by a second, later oil maturation program (approximately coincident with flower initiation) in which the c3-carbonyl of menthone is reduced to yield (-)-(3r)-menthol and (+)-(3s)-neomenthol by two distinct nadph-dependent ketoreductases. an activity-based in situ screen, by expression in ... | 2005 | 15728344 |
| monoterpene metabolism. cloning, expression, and characterization of (-)-isopiperitenol/(-)-carveol dehydrogenase of peppermint and spearmint. | the essential oils of peppermint (mentha x piperita) and spearmint (mentha spicata) are distinguished by the oxygenation position on the p-menthane ring of the constitutive monoterpenes that is conferred by two regiospecific cytochrome p450 limonene-3- and limonene-6-hydroxylases. following hydroxylation of limonene, an apparently similar dehydrogenase oxidizes (-)-trans-isopiperitenol to (-)-isopiperitenone in peppermint and (-)-trans-carveol to (-)-carvone in spearmint. random sequencing of a ... | 2005 | 15734920 |
| the inhibition of candida albicans by selected essential oils and their major components. | many volatile oils are known to possess antifungal properties and are potentially applicable as antimycotic agents. by studying the efficacy of essential oils against different pathogenic mycetes, we have evaluated the in-vitro inhibiting activity of some essential oils and their main constituents against a strain of candida albicans. sixteen commercial essential oils and forty-two pure constituents (alcohols, aldehydes, ketons, phenols and hydrocarbons), were tested by using a semisolid agar an ... | 2005 | 15883716 |
| effect of mentha piperita (labiatae) and mentha spicata (labiatae) on iron absorption in rats. | the effect of mentha piperita (labiatae) and mentha spicata (labiatae) teas, which contain different phenol compounds, on iron metabolism was studied. these teas grow in different areas of the city of isparta, turkey. these herbals were given to the rats in tea. | 2004 | 15941008 |
| [cloning and analysis of cdna encoding key enzyme gene (dxr) of the non-mva pathway in taxus chinensis cells]. | two distinct routes (classical mevalonate pathway and a novel mevalonate-independent pathway) are utilized by plants for the biosynthesis of isopentenyl diphosphate, the universal precursor of isoprenoids (fig. 1). present researches indicated that taxol was synthesized mainly via non-mevalonate pathway, but not genetic evidence was showed. the second step in non-mevalonate pathway involves an intramolecular rearrangement and subsequent reduction of deoxyxylulose phosphate to yield 2-c-methyl-d- ... | 2004 | 15968987 |
| assessment of wool waste and hair waste as soil amendment and nutrient source. | a field and two container experiments were conducted to assess uncomposted wool and hair wastes as a nutrient source for crops and to evaluate their potential to improve soil biological and chemical properties. overall, addition of wool or hair waste to soil increased yields of basil (ocimum basilicum l. 'trakia'), thorn apple (datura innoxia mill. 'inka'), peppermint (mentha x piperita l. 'black mitchum'), and garden sage (salvia officinalis l. 'desislava'), increased nh(4)-n and no(3)-n in soi ... | 2005 | 16275732 |
| in vitro susceptibility of helicobacter pylori to botanical extracts used traditionally for the treatment of gastrointestinal disorders. | the gram-negative bacterium helicobacter pylori (hp), identified in 1982, is now recognized as the primary etiological factor associated with the development of gastritis and peptic ulcer disease. in addition, hp infections are also associated with chronic gastritis, gastric carcinoma and primary gastric b-cell lymphoma. for centuries, herbals have been used in traditional medicine to treat a wide range of ailments, including gastrointestinal (gi) disorders such as dyspepsia, gastritis and pepti ... | 2005 | 16317658 |
| modulatory effects of mentha piperita on lung tumor incidence, genotoxicity, and oxidative stress in benzo[a]pyrene-treated swiss albino mice. | mentha piperita or peppermint is currently used for alleviating nausea, flatulence, and vomiting. in the present investigation, we evaluated the chemopreventive, antigenotoxic, and antioxidative effects of an aqueous extract of mentha piperita leaves. one-day-old swiss albino mice were treated with a single subcutaneous injection of 0.5 mg benzo[a]pyrene (bp) and then given either water or a mentha extract (me; 1 g/kg body weight) by gavage starting at 3 weeks of age (weaning). the mice were kil ... | 2006 | 16355390 |
| protective effects of mentha piperita linn on benzo[a]pyrene-induced lung carcinogenicity and mutagenicity in swiss albino mice. | the chemopreventive and antimutagenic effects of an aqueous extract of mentha piperita leaves were evaluated by using 9 week medium term model of benzo[a]pyrene (bp)-induced lung tumors. lung tumors were induced by a single subcutaneous injection in the scapular region with bp in newborn swiss albino mice (<24 h old). the oral administration of mentha extract (me) showed a significant reduction in the number of lung tumors from an incidence of 67.92% in animals given only bp to 26.31%. the inhib ... | 2006 | 16399846 |
| exposure to airborne microorganisms, dust and endotoxin during processing of peppermint and chamomile herbs on farms. | the aim of this study was to determine the levels of microorganisms, dust and endotoxin in the air during processing of peppermint (mentha piperita) and chamomile (matricaria recutita) by herb farmers, and to examine the species composition of airborne microflora. air samples were collected on glass fibre filters by use of personal samplers on 13 farms owned by herb cultivating farmers, located in lublin province (eastern poland). the concentrations of total viable microorganisms (bacteria + fun ... | 2005 | 16457486 |
| dimethylallyl diphosphate and geranyl diphosphate pools of plant species characterized by different isoprenoid emissions. | dimethylallyl diphosphate (dmadp) and geranyl diphosphate (gdp) are the last precursors of isoprene and monoterpenes emitted by leaves, respectively. dmadp and gdp pools were measured in leaves of plants emitting isoprene (populus alba), monoterpenes (quercus ilex and mentha piperita), or nonemitting isoprenoids (prunus persica). detectable pools were found in all plant species, but p. persica showed the lowest pool size, which indicates a limitation of the whole pathway leading to isoprenoid bi ... | 2006 | 16461390 |
| a review of the bioactivity and potential health benefits of peppermint tea (mentha piperita l.). | peppermint (mentha piperita l.) is one of the most widely consumed single ingredient herbal teas, or tisanes. peppermint tea, brewed from the plant leaves, and the essential oil of peppermint are used in traditional medicines. evidence-based research regarding the bioactivity of this herb is reviewed. the phenolic constituents of the leaves include rosmarinic acid and several flavonoids, primarily eriocitrin, luteolin and hesperidin. the main volatile components of the essential oil are menthol ... | 2006 | 16767798 |
| biochemical activities of iranian mentha piperita l. and myrtus communis l. essential oils. | gc-ms analysis of essential oils of iranian mentha piperita and myrtus communis extracted by hydrodistillation lead to identification of 26 and 32 compounds, respectively. the oils had good to excellent antimicrobial activities against escherichia coli, staphylococcus aureus and candida albicans with the oil of m. piperita being more active. the findings suggest feasibility of application of m. piperita oil in treatment of the infections caused by c. albicans and e. coli. d-values on exposure to ... | 2006 | 16777154 |
| radioprotective influence of mentha piperita (linn) against gamma irradiation in mice: antioxidant and radical scavenging activity. | to evaluate the radiomodulatory influence of a leaf extract of mentha piperita (linn) on hepatic antioxidant status and lipid peroxidation in swiss albino mice. | 2006 | 16782650 |
| giardia lamblia: the effects of extracts and fractions from mentha x piperita lin. (lamiaceae) on trophozoites. | giardia lamblia is a parasite that causes giardiasis in humans and other mammals. the common treatment includes different classes of drugs, which were described to produce unpleasant side effects. mentha x piperita, popularly known as peppermint, is a plant that is frequently used in the popular medicine to treat gastrointestinal symptoms. we examined the effects of crude extracts and fractions from peppermint against g. lamblia (atcc 30888) on the basis of trophozoite growth, morphology and adh ... | 2007 | 16843460 |
| repellent activity of five essential oils against culex pipiens. | essential oils extracted from the seeds of anise (pimpinella anisum), dried fruits of eucalyptus (eucalyptus camaldulensis), dried foliage of mint (mentha piperita) and basil (ocimum basilicum) and fresh foliage of laurel (laurus nobilis) were tested for their repellency against the adult females of culex pipiens. all essential oils showed repellency in varying degrees, eucalyptus, basil and anise being the most active. | 2006 | 16890387 |
| synergism between plant extract and antimicrobial drugs used on staphylococcus aureus diseases. | searches for substances with antimicrobial activity are frequent, and medicinal plants have been considered interesting by some researchers since they are frequently used in popular medicine as remedies for many infectious diseases. the aim of this study was to verify the synergism between 13 antimicrobial drugs and 8 plant extracts--"guaco" (mikania glomerata), guava (psidium guajava), clove (syzygium aromaticum), garlic (allium sativum), lemongrass (cymbopogon citratus), ginger (zingiber offic ... | 2006 | 16951808 |
| antiviral effect of aqueous extracts from species of the lamiaceae family against herpes simplex virus type 1 and type 2 in vitro. | aqueous extracts from species of the lamiaceae family were examined for their antiviral activity against herpes simplex virus (hsv). extracts from lemon balm (melissa officinalis), peppermint (mentha x piperita), prunella (prunella vulgaris), rosemary (rosmarinus officinalis), sage (salvia officinalis) and thyme (thymus vulgaris) were screened. their inhibitory activity against herpes simplex virus type 1 (hsv-1), type 2 (hsv-2) and an acyclovir-resistant strain of hsv-1 (acv (res)) was tested i ... | 2006 | 17091431 |
| trpm8-independent menthol-induced ca2+ release from endoplasmic reticulum and golgi. | menthol, a secondary alcohol produced by the peppermint herb, mentha piperita, is widely used in the food and pharmaceutical industries as a cooling/soothing compound and odorant. it induces ca2+ influx in a subset of sensory neurons from dorsal root and trigeminal ganglia, due to activation of trpm8, a ca2+-permeable, cold-activated member of the trp superfamily of cation channels. menthol also induces ca2+ release from intracellular stores in several trpm8-expressing cell types, which has led ... | 2007 | 17142461 |
| comparison of essential oils from three plants for enhancement of antimicrobial activity of nitrofurantoin against enterobacteria. | piperitone from plant essential oils enhancesbactericidal activities of nitrofurantoin and furazolidone against bacteria from the family enterobacteriaceae. in this study, the essential oils of spearmint (mentha spicata l.), dill (anethum graveolens l.) and peppermint (mentha piperita l.)were screened for augmentation of nitrofurantoin activity and the most active components were determined. | 2007 | 17192709 |
| efficacy of plant extracts against stored-products fungi. | the fungistatic activity of six aqueous extracts of plants were tested against aspergillus candidus, aspergillus niger, penicillium sp. and fusarium culmorum. the plants were, chamomile (anthemis nobilis l.), cinnamon (cinnamomum verum j. presl.), french lavender (lavandula stoechas l.), garlic (allium sativum l.), malva (malva sylvestris l.) and peppermint (mentha piperita l.). the more concentrated extracts of chamomile and malva inhibited totally the growth of the tested fungi with malva the ... | 2006 | 17196025 |
| effect of spearmint (mentha spicata labiatae) teas on androgen levels in women with hirsutism. | mentha spicata labiatae, known as spearmint and mentha piperita labiatae, known as peppermint can be used for various kinds of illnesses in herbal medicine and flavoring in industry. m. spicata labiatae grows on the anamas plateau of yenithornarbademli town of isparta, located in southwest part of turkey. in this town, clinicians thought that consumption of tea steeped with m. spicata or m. piperita caused a diminished libido. because antiandrogenic effects of spearmint and peppermint were found ... | 2007 | 17310494 |
| protective effect of mentha piperita against arsenic-induced toxicity in liver of swiss albino mice. | the protective role of leaves of mentha piperita linn (mint) was studied in adult swiss albino mice against arsenic-induced hepatopathy. the animals were divided into four groups. group i: only vehicle (0.9% nacl) was administered. group ii: the animals received mentha leaf extract (1 g/kg body weight per day) orally for 30 days. group iii: animals were treated with sodium arsenite (4 mg/kg body weight) intraperitoneally in 0.9% nacl. group iv: animals were given mentha extract for 10 consecutiv ... | 2007 | 17371529 |
| occurence of fungal diseases on lemon balm (mellisa officinalis l.) and peppermint (mentha x piperita l.) in the region of malopolska. | this paper presents the results of the researches carried out on the subject of the diseases on herbs such as lemon balm and peppermint focusing on the health status of the plants grown in the region of malopolska. the field and laboratory research proved that perpetrators of the diseases on the examined plants were fungi species with the numerical majority. on lemon balm septoria leaf spot (septoria melissae) was most often observed. moreover, fungal genera of different taxonomic groups were de ... | 2006 | 17390866 |
| composition and antifungal activity of essential oils of mentha piperita and lavendula angustifolia on post-harvest phytopathogens. | the general antifungal activity of essential oils is well documented. the advantage of essential oils is their bioactivity in the vapor phase, a characteristic that makes them attractive as possible fumigants for stored product protection. essential oils of aerial parts of mentha piperita and lavendula angustifolia were obtained with hydrodistillation and oils composition identified with gc-ms. menthanol (36.24%) and menthone (32.42%) were the major compounds of the m. piperata essential oil. th ... | 2006 | 17390896 |
| compounds from ageratum conyzoides: isolation, structural elucidation and insecticidal activity. | this work aimed at identifying plant compounds with insecticidal activity against diaphania hyalinata (l.) (lepidoptera: pyralidae), musca domestica (l.) (diptera: muscidae), periplaneta americana (l.) (blattodea: blattidae) and rhyzopertha dominica (f.) (coleoptera: bostrichidae). the plant species used were: basil (ocimum selloi benth.), rue (ruta graveolens l.), lion's ear (leonotis nepetaefolia l.), jimson weed (datura stramonium l.), 'baleeira' herb (cordia verbenaceae l.), mint (mentha pip ... | 2007 | 17469080 |
| [effects of aqueous extracts of mentha piperita l. and chenopodium ambrosioides l. leaves in infective larvae cultures of gastrointestinal nematodes of goats]. | phitotherapy has been frequently utilized in parasitism control for numerous animal species. the aim of this experiment was to evaluate the in vitro effects of aqueous extracts of mentha piperita l. and chenopodium ambrosioides l. leaves in larvae cultures of gastrointestinal nematodes of goats. six different concentrations of m. piperita extracts (196; 150.7; 115.9; 89.1; 68.5 e 52.7 mg/ml) and c. ambrosioides extracts (110,6; 85; 65,3; 50,2; 38,6 e 29,6 mg/ml) were used for the treatment of la ... | 2007 | 17588325 |
| protective effects of mentha piperita linn on benzo[a]pyrene-induced lung carcinogenicity and mutagenicity in swiss albino mice. | | 2007 | 17596640 |
| ethnoveterinary medicines used to treat endoparasites and stomach problems in pigs and pets in british columbia, canada. | this paper documents the medicinal plants used to treat endoparasites and stomach problems in dogs, cats and pigs in british columbia, canada. ethnoveterinary data was collected over a 6-month period in 2003. the majority of the information on pets came from 2 naturopaths, 10 herbalists, 5 dog trainers, breeders and pet shop owners, 9 holistic veterinarians and 6 of 27 organic farmers. two pig farmers joined the study in the final stages. the following plants were used as anthelmintics: artemisi ... | 2007 | 17628343 |
| protection against radiation induced hematopoietic damage in bone marrow of swiss albino mice by mentha piperita (linn). | the protective effects of mentha piperita (linn) extract against radiation induced hematopoietic damage in bone marrow of swiss albino mice have been studied. mice were given either double distilled water or leaf extract of m. piperita orally (1 g/kg b.wt./day) once a day for three consecutive days, and after 30 min of treatments on the third day were exposed to 8 gy gamma radiation. mice were autopsied at 12, 24, 48 hrs and 5, 10 and 20 days post-irradiation to evaluate the percentage of bone m ... | 2007 | 17938557 |
| risks and benefits of commonly used herbal medicines in mexico. | in mexico, local empirical knowledge about medicinal properties of plants is the basis for their use as home remedies. it is generally accepted by many people in mexico and elsewhere in the world that beneficial medicinal effects can be obtained by ingesting plant products. in this review, we focus on the potential pharmacologic bases for herbal plant efficacy, but we also raise concerns about the safety of these agents, which have not been fully assessed. although numerous randomized clinical t ... | 2008 | 18037151 |
| radioprotective potential of plants and herbs against the effects of ionizing radiation. | ionizing radiations produce deleterious effects in the living organisms and the rapid technological advancement has increased human exposure to ionizing radiations enormously. there is a need to protect humans against such effects of ionizing radiation. attempts to protect against the deleterious effects of ionizing radiations by pharmacological intervention were made as early as 1949 and efforts are continued to search radioprotectors, which may be of great help for human application. this revi ... | 2007 | 18188408 |
| control of aspergillus section flavi growth and aflatoxin accumulation by plant essential oils. | the antifungal effect of pimpinella anisum (anise), pëumus boldus (boldus), mentha piperita (peppermint), origanum vulgare (oregano) and minthosthachys verticillata (peperina) essential oils against aspergillus section flavi (two isolates of aspergillus parasiticus and two isolates of aspergillus flavus) was evaluated in maize meal extract agar at 0.982 and 0.955 water activities, at 25 degrees c. | 2008 | 18284488 |
| aqueous extracts from peppermint, sage and lemon balm leaves display potent anti-hiv-1 activity by increasing the virion density. | aqueous extracts from leaves of well known species of the lamiaceae family were examined for their potency to inhibit infection by human immunodeficiency virus type 1 (hiv-1). | 2008 | 18355409 |
| phytotherapeutic inhibition of supragingival dental plaque. | antimicrobial activities and biofilm-formation preventive properties of mentha piperita and cuminum cyminum essential oils and chlorhexidine were assessed against streptococcus mutans and streptococcus pyogenes. gas chromatography (gc) and gas chromatography-mass spectrometry (gc-ms) analysis led to the identification of 26 and 32 compounds in the essential oils of m. piperita and c. cyminum, respectively. minimal bactericidal concentrations (mbc) of the oils and chlorhexidine and microbial deci ... | 2008 | 18404563 |
| an investigation on the anticandidal activity of some traditional medicinal plants in turkey. | methanol and chloroform extracts obtained from eight plant species belonging to six families, which were selected depending on their use in turkish folk medicine, including mentha longifolia l. (labiatae), mentha piperita l. hudson (labiatae), prongos ferulaceae (umbelliferae), galium verum l. (rubiaceae), salvia limbata c. a meyer (labiatae), artemisia austriaca jacq. (artemiceae), plantago lanceolata l. (plantaginaceae) and urtica dioica l. (urticaceae) were evaluated for their in vitro antica ... | 2009 | 18522697 |
| phytotherapeutic prevention of dental biofilm formation. | the antimicrobial and biofilm formation preventive properties of mentha piperita and rosmarinus officinalis essential oils and chlorhexidine were assessed against streptococcus mutans and streptococcus pyogenes. 26 and 20 compounds were identified by gc and gc-ms analysis in hydrodistilled oils from m. piperita and r. officinalis, respectively. the minimal bactericidal concentrations (mbc) of the m. piperita and r. officinalis oils and chlorhexidine were (6000, 2000, 8000 ppm) and (1000, 4000, 1 ... | 2008 | 18729251 |
| activity of essential oils and individual components against acetyl- and butyrylcholinesterase. | we have tested acetylcholinesterase (ache) and butyrylcholinesterase (bche) inhibitory activities of nineteen essential oils obtained from cultivated plants, namely one from anethum graveolens l. (organic fertilizer), two from foeniculum vulgare mill. collected at fully-mature and flowering stages (organic fertilizer), two from melissa officinalis l. (cultivated using organic and chemical fertilizers), two from mentha piperita l. and m. spicata l. (organic fertilizer), two from lavandula officin ... | 2008 | 18810999 |
| evaluation of antibacterial activity of selected iranian essential oils against staphylococcus aureus and escherichia coli in nutrient broth medium. | the antibacterial effect of different concentrations (0.01 to 15%) of thyme (thymus vulgaris), peppermint (mentha piperita l.) caraway seed (carum carvi), fennel (foeniculum vulgar), tarragon (artmesia dracunculus) and pennyroyal (mentha pullegium) essential oils on the staphylococcus aureus and escherichia coli was studied in nutrient broth medium. the mic values of peppermint, fennel, thyme, pennyroyal and caraway essential oils against escherichia coli were 0.5 +/- 0.03, 1 +/- 0.03, 0.3 +/- 0 ... | 2007 | 19093484 |
| chemical composition of essential oils of thymus and mentha species and their antifungal activities. | the potential antifungal effects of thymus vulgaris l., thymus tosevii l., mentha spicata l., and mentha piperita l. (labiatae) essential oils and their components against 17 micromycetal food poisoning, plant, animal and human pathogens are presented. the essential oils were obtained by hydrodestillation of dried plant material. their composition was determined by gc-ms. identification of individual constituents was made by comparison with analytical standards, and by computer matching mass spe ... | 2009 | 19136911 |
| anti-helicobacter pylori activity of plants used in mexican traditional medicine for gastrointestinal disorders. | helicobacter pylori is the major etiological agent of chronic active gastritis and peptic ulcer disease and is linked to gastric carcinoma. treatment to eradicate the bacteria failed in many cases, mainly due to antibiotic resistance, hence the necessity of developing better therapeutic regimens. mexico has an enormous unexplored potential of medicinal plants. this work evaluates the in vitro anti-h. pylori activity of 53 plants used in mexican traditional medicine for gastrointestinal disorders ... | 2009 | 19162157 |
| the antimicrobial activity of four commercial essential oils in combination with conventional antimicrobials. | due to the emergence of multi-drug resistance, alternatives to conventional antimicrobial therapy are needed. this study aims to investigate the in vitro pharmacological interactions between essential oils (considered valuable as natural therapeutic treatments) and conventional antimicrobials (ciprofloxacin/amphotericin b) when used in combination. | 2009 | 19187494 |
| the potential application of plant essential oils as natural preservatives against escherichia coli o157:h7. | investigation were carried out to compare the efficiency of three plant essential oils; zataria multiflora, carum carvi and mentha piperita as natural food preservatives. the effect of these plant essential oils at concentrations of 0.0, 0.3, 0.6 and 1% was studied against inoculated escherichia coli o157:h7 (10(5) cfu ml(-1)) in prepared commercial chicken soup stored at 8 and 35 degrees c over seven (168 h) and three (72 h) days, respectively by plate count technique on ct-smac agar. zataria m ... | 2008 | 19266918 |
| applicability of leachates originating from solid-waste landfills for irrigation in landfill restoration projects. | since, landfill areas are still the most widely used solid waste disposal method across the world, leachate generated from landfills should be given importance. leachate of landfills exerts environmental risks mostly on surface and groundwater with its high pollutant content, which may cause unbearable water quality. this leads to the obligation for decontamination and remediation program to be taken into progress for the landfill area. among a number of alternatives to cope with leachate, one i ... | 2008 | 19295082 |
| protection against radiation-induced testicular damage in swiss albino mice by mentha piperita (linn.). | the protective effects of mentha piperita leaf extract against radiation-induced damage in testis of swiss albino mice have been studied. animals (male swiss albino mice) were given m. piperita leaf extract orally (1 g/kg body weight/day) for three consecutive days before radiation exposure (8 gy gamma-radiation). mice were autopsied at 1, 3, 7, 14, and 30 days after irradiation to evaluate the radiomodulatory effect in terms of histological alterations, lipid peroxidation, and acid and alkaline ... | 2009 | 19320637 |
| allelopathic monoterpenes interfere with arabidopsis thaliana cuticular waxes and enhance transpiration. | exposure to the allelopathic monoterpenes camphor (100 mg/10 l) and menthol (50 mg/10 l) for 24 h enhanced transpiration of arabidopsis thaliana fully developed rosette leaves similar to de-waxing. as ascertained by esem analyses the leaf surfaces were spotted with platelet like structures which seem to be partly mixed with the lipophilic epicuticular layers. the structures are supposed to contain the condensed monoterpenes, which could be identified by gc. long term exposure (more than 48 h) to ... | 2007 | 19516993 |
| lousicidal, ovicidal and repellent efficacy of some essential oils against lice and flies infesting water buffaloes in egypt. | the lousicidal and repellent effects of five essential oils were investigated for the first time against the buffalo louse, haematopinus tuberculatus, and flies infesting water buffaloes in qalyubia governorate, egypt. for the in vitro studies, filter paper contact bioassays were used to test the oils and their lethal activities were compared with that of d-phenothrin. four minutes post-treatment, the median lethal concentration, lc50, values were 2.74, 7.28, 12.35, 18.67 and 22.79% for camphor ... | 2009 | 19596520 |
| screening of five essential oils for identification of potential inhibitors of il-1-induced nf-kappab activation and no production in human chondrocytes: characterization of the inhibitory activity of alpha-pinene. | nuclear factor-kappab is a key transcription factor activated by pro-inflammatory signals, like interleukin-1beta (il-1), being required for the expression of many inflammatory and catabolic mediators, such as nitric oxide (no), that play an important role in arthritic diseases. this work aimed at screening and identifying natural inhibitors of il-induced nf-kappab activation and no production in human articular chondrocytes. five essential oils obtained from four plants of the iberian flora, me ... | 2010 | 19774507 |
| the in vitro antibiofilm activity of selected culinary herbs and medicinal plants against listeria monocytogenes. | the antibiofilm activity of extracts obtained from selected herbs, spices, beverages and commercially important medicinal plants was investigated on listeria monocytogenes. | 2010 | 19874481 |
| neuroprotective and neurochemical properties of mint extracts. | mints are aromatic plants with a tradition as medicinal remedies and culinary herbs. with the aim of investigating potential central nervous system (cns) activities of traditional medicinal plants, four species and one hybrid of the genus mentha (m. aquatica, m. longifolia, m. pulegium, m. suaveolens and m. x piperita) were selected. methanolic extracts of the plants were tested for protective effects against hydrogen-peroxide-induced toxicity in pc12 cells, antioxidant activity (by abts and x/x ... | 2010 | 19943334 |
| tramil ethnopharmacological survey: knowledge distribution of medicinal plant use in the southeast region of puerto rico. | tramil network aims to understand, validate and expand health practices based on the use of medicinal plants in the caribbean, a "biodiversity hotspot" due to high species endemism, intense development pressure and habitat loss. | 2009 | 19999241 |
| essential oils in the treatment of intestinal dysbiosis: a preliminary in vitro study. | dysbiosis is associated with a number of gastrointestinal and systemic disorders. there is a need for selectively acting antimicrobial agents capable of inhibiting the growth of potentially pathogenic microorganisms, or those found to be out of balance, while not negatively impacting the bulk gastrointestinal tract microflora. | 2009 | 20030464 |
| matrix solid-phase dispersion (mspd) in chromatographic analysis of essential oils in herbs. | matrix solid-phase dispersion (mspd) is a simple and cheap sample preparation procedure allowing for the reduction of organic solvent consumption, exclusion of sample component degradation, improvement of extraction efficiency and selectivity, elimination of additional sample clean-up and pre-concentration step before chromatographic analysis. the paper shows the possibility of mspd application for qualitative and quantitative analysis of essential oil components in the following herbs: thyme (t ... | 2010 | 20071125 |
| effects of essential oils on the growth of giardia lamblia trophozoites. | giardia lamblia is one of the most important worldwide causes of intestinal infections produced by protozoa. current therapy for giardiasis is unsatisfactory due to high incidence of undesirable side effects and significant failure in clearing parasites from the gastrointestinal tract. in the search for new therapeutic agents, we report on the effect of several essential oils on g. lamblia growth. among eighteen tested essential oils, those with phenolic compositions were the most active, partic ... | 2010 | 20184039 |
| effect of essential oils in control of plant diseases. | in this study, antifungal activity of some essential oils, extracted from syzygium aromoticum, foeniculum vulgare, cuminum cyminum and mentha piperita were investigated against grey mould of apple. the essential oils of s. aromaticum and f. vulgare showed considerable antifungal activities on pda medium against botrytis cinerea. results indicated that the increasing of dosage of the essential oils caused to the more antifungal activity against b. cinerea in vitro condition. after 10 days, result ... | 2009 | 20222570 |