Isolation of antioxidant phytoconstituents from the seeds of Lens culinaris Medik.
מילות מפתח
תַקצִיר
Lens culinaris Medik (Leguminosae) is an annual, bushy and herbaceous plant cultivated globally for its edible seeds. A methanolic extract of the seeds contained four new antioxidant compounds, namely β-sitosteryl-3-(2'-n-eicosanyloxy)-benzoate (3), n-octadec-9-enoyl-1-β-D-glucurano-pyranoside (4) α-D-galactopyranosyl-(6 → 1')-α-D-galactopyranosyl-(6' → 1″)-α-D-galactopyranosyl-(6″ → 1‴)-α-d-galactopyranoside (5) and benzoyl-O-α-D-glucopyranosyl-(2a → 1b)-O-α-D-glucopyranosyl-(2b → 1c)-O-α-D-glucopyranosyl-(6c → 1d)-O-α-D-glucopyranosyl-(6d → 1e)-O-α-D-gluco-pyranoside (6) along with two known compounds n-heptadecanyl n-octadec-9-enoate (1) and β-sitosterol (2) on the basis of chromatographic and spectral data analytical techniques. Compound 3 showed significant antioxidant activity compared to compounds 4, 5, and 6.