Phytochemical analysis of Lupinus polyphyllus Lidl. for phenolic and silicon compounds

Biochemical analysis of 7 samples of Lupinus polyphyllus Lindl. naturalized populations in the secondary distribution ranges (in Moscow, Kaluga and Smolensk regions) shows that leaves contain quercetin-3-0-glycoside (0,67–0,77%), quercetin-3-0-galactoside (0,44–0,57%), luteolin-3-0-glucoside (0,40–0,48%), diosmetin-3-0-glucoside (0,48–0,55%), apigenin-3-0-glycoside (0,18–0,33%). Inflorescences contain quercetin-3-0-glycoside (0,70–0,74%), quercetin-3-0-galactoside (0,34–0,47%), luteolin-3-0-glucoside (0,18–0,24%). Stems of all samples contain quercetin-3-0-glycoside (0,14–0,57%), quercetin-3-0-galactoside (0,07–0,47%). Organic silicon (0,50-0,64%) dominates in leaves and inflorescences, whereas, silicon (up to 0,47% on the abs. dry in of) - in the stems.