منابع مشابه
Phenolics from Brazilian Propolis
Propolis, or bee glue, is a complex resinous mix ture of plant-derived products collected and used by bees as a general purpose sealer and antibiotic in their hives. It is reported to exhibit a broad spectrum of biological activities, including antibac terial, antiviral, antiinflammatory, cytotoxic etc. (Marcucci, 1995). It is widely used in folk medicine and also as an ingredient in “herbal”...
متن کاملAntibacterial diterpenic acids from Brazilian propolis.
Four labdane-type diterpenic acids and syringaldehyde were isolated and identified from Brazilian propolis. All the compounds exhibit antibacterial activity. The diterpenes, found for the first time in propolis, are typical for some Araucaria species and thus indicate a possible plant source of Brazilian propolis.
متن کاملLupeol alkanoates in Brazilian propolis.
High temperature high resolution gas chromatography coupled to mass spectrometry (HT-HRGC-MS) isa powerful analytical tool. In this work we applied this technique to the study of crude extracts of propolis collected near the city of Uberlândia-Minas Gerais State. Eucalyptus trees and native plants from "cerrado" (savannah) were the material sources disposable for the Apis mellifera bees. A lot ...
متن کاملChemical composition and biological activity of propolis from Brazilian meliponinae.
Twenty-one propolis samples produced by 12 different Meliponinae species were analyzed by GC-MS. Several chemical types of stingless bees' propolis could be grouped, according to the prevailing type of compounds like: 'gallic acid", "diterpenic" and "triterpenic" types. The results confirm that neither the bee species nor the geographical location determine the chemical composition of Meliponin...
متن کاملAntitrypanosomal activity of Brazilian propolis from Apis mellifera.
Extracts from different samples of Brazilian propolis were obtained by Soxhlet extraction or maceration at room temperature using ethanol, water, and accombination of both solvents. Analysis of their composition using HPLC revealed that no major differences were seen when a propolis sample was subject to different extraction methods. The activity of the 15 extracts was assayed against bloodstre...
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ژورنال
عنوان ژورنال: Zeitschrift für Naturforschung C
سال: 1997
ISSN: 1865-7125,0939-5075
DOI: 10.1515/znc-1997-9-1016