منابع مشابه
Anti Bacterials from Boerhaavia Diffusa
The chloroform and alcohol extracts of e plats were screened against six bacteria viz staphylococcus aureus, Escherichia Coli, proteus mirablis, salmonella typhimurium, Pseudomonas aeruginosa and Klebsiella a aerogenes. Benzene-ethyl acetate (4:1) eluate of chloroform extract sowed activity against E.Coli, S.typhimurium and P.aeruginosa. The nbutanol extract of alcohol extract was active agains...
متن کاملUnusual Flavanones from a Rare American Fern
Notholaena fendleri, Polypodiaceae, Farinose Exudate, Novel Flavanone Notholaena fendleri is a rare representative of the genus, growing mainly in Colorado/USA. The white farinose exudate on the lower surface of its pinnules is composed partly of waxy material and partly of flavonoid aglycones. The flavonoid moiety consists mainly of methyl derivatives of the flavanones naringenin and eriodicty...
متن کاملAntibacterial flavanones and dihydrochalcones from Macaranga trichocarpa.
Previously we had isolated two prenylated flavanones and two prenylated dihydrochalcones, macatrichocarpins A-D (1-4), from the acetone extract of the leaves of Macaranga trichocarpa. Re-examination of the fractions containing minor components resulted in the isolation of four more flavonoid derivatives, including two new prenylated dihydrochalcones, oxymacatrichocarpin C (5) and isomacatrichoc...
متن کاملFlavanones from the Flower of Macaranga triloba
Macaranga triloba belongs to the family of Euphorbiaceae. Investigation on the dichloromethane extract of flower of Macaranga triloba collected at Hulu Terengganu, Malaysia has yielded four flavanone compounds known as 6-prenyl-3’-methoxy-eriodictyol (1), nymphaeol-B (2), nymphaeol-C (3) and 6-farnesyl3’,4’,5,7-tetrahydroxyflavanone (4). The structures of these compounds were elucidated based o...
متن کاملPeroxidatic Degradation of Flavanones
Flavanones, Catabolites, Peroxidases, Degradation, Substitution Pattern Peroxidases were shown to be responsible for the degradation of flavanones as occuring after application of these substrates to plant cell suspension cultures. — Comparative studies with various flavanones and horseradish peroxidase showed that only 4'-hydroxyflavanones will be catabolized peroxidatically. — Intensive analy...
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ژورنال
عنوان ژورنال: Journal of the Brazilian Chemical Society
سال: 1999
ISSN: 0103-5053
DOI: 10.1590/s0103-50531999000200015