ABSTRACT
Phytochemical study of the butanol extract of the growing buds of the bulbs of red onion [Allium cepa L.] has been resulted in the isolation of four flavonoidal compounds, quercetin 1, quercetin-3'-omi-beta-D-glucopyranoside 2, quercetin-7, 3'-omi-beta-D-diglucopyranoside 3 and a new compound named as Alluceposide 4. Identity of these compounds was established on the basis of their physical and spectral data. The antioxidant activity was carried out for the total butanol extract and the isolated compounds and a significant result was obtained
Subject(s)
Flavonols/isolation & purification , AntioxidantsABSTRACT
Phytochemical investigation of the ethyl acetate soluble-extract of the entire herb of Veronica polita Fries [Scrophulariaceae] was resulted in the isolation of two new glucosides, amiroside [2,4-dihydroxy benzonitrile, 2-O-beta-D-glucopyranoside] and 7-deoxy gardoside methyl ester. Their structures were established through their chemical and spectral data