Posted by admin on Mar 1, 2013 in |
The aerial parts essential oils of Ocimum basilicum (Lamiaceae) from Togo were steam-distilled and investigated for their percentage composition (GC and GC/MS) and in vitro antimicrobial activities. Five oil chemotypes were identified and classified as follows in line with their principal components: estragole type; linalool/estragole type; methyleugenol type; methyleugenol/t-anethole type; tanethole type. The in vitro microbiological experiments revealed that only the methyleugenol and methyleugenol/t-anethole chemotypes were active against tested fungi and bacteria. Their minimum inhibitory concentrations (MIC) ranged from 80-150 μL/L and from 200-500 μL/L respectively. Likewise, on tested bacteria the MIC varied from 200-400 μL/L and from 250-500 μL/L respectively. These findings are supportive of the potential of both basil oil chemotypes for use as active ingredients in natural antibiotic...
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Posted by admin on Mar 1, 2013 in |
The methanolic extract (MeOH) of the bark of Holoptelea integrifolia (Roxb.) Planch and its partitions namely n-hexane (Hx), ethyl acetate (EtOAC), butanol (BuOH) and water (H2O) was screened for various in vitro biological activities including general cytotoxicity (brine shrimp lethality assay), phytotoxicity (lemna minor bioassay), nematicidal and insecticidal (Tribolium castaneum H., Rhyzopertha dominica F. and Callosobruchus analis F. assays. The extracts were found to have potent significant nematicidal activity against Meloidogyne incognita and moderate insecticidal activity against C. analis F. At the tested concentrations non-significant cytotoxicity and phytotoxicity had intended us for the utilization of extracts as biological control for the agro-ecosystem management having prudent, effectual and eco-friendly...
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Posted by admin on Mar 1, 2013 in |
In the present study, total 15 fungal species isolated from roots of drug Stereospermum chelonoides DC. such as: Fusarium solani, F. lateritum, F. semitectum, F. oxysporum, Aspergillus ochraceus, A. niger, A. terreus, Theilavia terricola, Papulaspora immerse, Scytallidium thermophilum, Didymostilbe sp., Cunningamella elegans, Aphanomyces sp., Sordaria fimicola and Mucor praini. Species of Fusarium showed maximum percentage incidence. The root samples stored at different relative humidities 30, 50, 75, 96 and 100% RH. Quantitative estimation of alkaloids and glycosides in association with isolated fungi was done. Percentage incidence of storage fungi and the rate of deterioration of chemical constituents in the samples were noted at above 75% RH. Analysis of variance also showed the effect of relative humidity and incubation days on biodeterioration of these chemical constituents were significant at 5% level of...
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Posted by admin on Mar 1, 2013 in |
The aerial parts essential oils of Ocimum basilicum (Lamiaceae) from Togo were steam-distilled and investigated for their percentage composition (GC and GC/MS) and in vitro antimicrobial activities. Five oil chemotypes were identified and classified as follows in line with their principal components: estragole type; linalool/estragole type; methyleugenol type; methyleugenol/t-anethole type; tanethole type. The in vitro microbiological experiments revealed that only the methyleugenol and methyleugenol/t-anethole chemotypes were active against tested fungi and bacteria. Their minimum inhibitory concentrations (MIC) ranged from 80-150 μL/L and from 200-500 μL/L respectively. Likewise, on tested bacteria the MIC varied from 200-400 μL/L and from 250-500 μL/L respectively. These findings are supportive of the potential of both basil oil chemotypes for use as active ingredients in natural antibiotic...
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Posted by admin on Mar 1, 2013 in |
An ethnobotanical survey was carried out through semi-structured questionnaire and the guided field-walk method in Islamic University, Kushtia, Bangladesh to document the utilization of medicinal plants by local people for general ailments. A total of 87 species belonging to 51 families with their local names, useable parts and mode of application were recorded for their usages for curing at least 70 ailments. Ethnomedicinally most important families are Asteraceae, Combretaceae, Moraceae, Solanaceae, Apocynaceae. These plant species are utilized by local peoples against various ailments such as dysentery, fever, cough, sexual debility, asthma, skin disease, diarrhea, indigestion, wound healing, toothache, malaria, etc. Indigenous knowledge of Kavirajes or knowledgeable local persons have great contributions in formulating applicable strategy for the development of various medicine using plants as either fresh or raw sources or both. These scattered, selective, fast eroding and highly valuable knowledge needs proper...
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