Ginkgo biloba flavonoid glycosides in antimicrobial perspective with reference to extraction method
نویسندگان
چکیده
منابع مشابه
Rapid microwave-assisted hydrolysis for determination of ginkgo flavonol glycosides in extracts of Ginkgo biloba leaves.
A rapid microwave-assisted hydrolysis (MAH) method is presented for the sample pretreatment of the determination of ginkgo flavonol glycosides in extracts of Ginkgo biloba L. (EGb). By this method, flavonol glycosides can be completely hydrolyzed within 2 min. After investigating the effects of solvents, acidity, microwave power, and microwave radiation time on hydrolysis, the optimal hydrolysi...
متن کاملActivity of an antimicrobial compound isolated from Ginkgo biloba
Ginkgo biloba is among the most sold medicinal plants of this world with estimates of sales in the USA of more than $249 million (de Kosky et al., 2008). Most of the sales are of special extracts from the leaves and are mainly used for the improvement of peripheral and central blood circulation (DeFeudis, 1998). Important constituents present in the leaves are terpene trilactones, i.e., ginkgol...
متن کاملScreening and Identifying Antioxidative Components in Ginkgo biloba Pollen by DPPH-HPLC-PAD Coupled with HPLC-ESI-MS2
The Ginkgo biloba is one of ancient trees that exists from billions of years ago, its leaf and nut are used as herbs and foods in China, while so far its pollen does not have any application except pollination. In order to evaluate the antioxidant activity of Ginkgo biloba pollen, and rapidly screen its antioxidative components, the 1,1-diphenyl-2-picrylhydrazyl (DPPH) scavenging ability, total...
متن کاملEfficient extraction of ginkgolides and bilobalide from Ginkgo biloba leaves.
An efficient and rapid protocol has been developed for extracting ginkgolides and bilobalide (terpene trilactones) from Ginkgo biloba leaves. The procedure takes advantage of the extraordinary stability of the terpene trilactone structure to a variety of chemical treatments, especially oxidation, despite the presence of multiple oxygen functions. The protocol involves boiling the aqueous extrac...
متن کاملGinkgo biloba--an appraisal.
Ginkgo biloba has been used in traditional Chinese medicine for about 5000 years. A standardized preparation, EGb 761 has been recently prepared. The pharmacologically active constituents, flavonol glycosides and the terpene lactones are standardized. The terpene lactones comprise of ginkgolides A, B, C and bilobalides. The extract scavenges excess free radicals and pretreatment with EGb 761 re...
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ژورنال
عنوان ژورنال: Journal of Traditional and Complementary Medicine
سال: 2019
ISSN: 2225-4110
DOI: 10.1016/j.jtcme.2017.10.003