Dihydrochalcone glucosides and antioxidant activity from the roots of Anneslea fragrans var. lanceolata

in Sciences Citation Index(SCI), 科學引文索引資料庫(SCI)
標題Dihydrochalcone glucosides and antioxidant activity from the roots of Anneslea fragrans var. lanceolata
出版類型SCI(Sciences Citation Index)
出版年度2012
AuthorsSheng-Zehn Yang, 楊勝任
開始頁120
頁數5
出版日期2012 / 1
其他編號0000
中文摘要

Bioassay-guided fractionation of the roots of Anneslea fragrans var. lanceolata led to the isolation of four
dihydrochalcone glucosides, davidigenin-20-O-(60 0-O-40 0 0-hydroxybenzoyl)-b-glucoside (1), davidigenin-
20-O-(20 0-O-40 0 0-hydroxybenzoyl)-b-glucoside (2), davidigenin-20-O-(30 0-O-40 0 0-hydroxybenzoyl)-b-glucoside
(3), and davidigenin-20-O-(60 0-O-syringoyl)-b-glucoside (4), and 13 known compounds. The
structures were identified by means of spectroscopic analysis. Davidigenin-20-O-(60 0-O-syringoyl)-b-glucoside
(4), 1-O-3,4-dimethoxy-5-hydroxy phenyl-6-O-(3,5-di-O-methylgalloyl)-b-glucopyranoside (5),
lyoniresinol (10), and syringic acid (13) showed ABTS [2,20-azino-bis(3-ethylbenzthiazoline-6-sulfonic
acid)] cation radical scavenging activity, with SC50 values of 52.6 ± 5.5, 26.0 ± 0.7, 6.0 ± 0.2, and
27.5 ± 0.6 lg/mL in 20 min, respectively. Lyoniresinol (10), isofraxidin (12), and syringic acid (13) also
showed DPPH [1,1-diphenyl-2-picrylhydrazyl] radical scavenging activity, with SC50 values of 8.4 ± 1.8,
51.6 ± 2.2, and 4.3 ± 0.7 lg/mL in 30 min, respectively.

期刊名稱Phytochemistry
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