DPPH Free Radical Scavenging Efficiency of Total Flavonoids from Scorzonera divaricata
MA Gou-cai1,2, ZHAO Li-na1, BAI Hong-jin2*
NATURAL PRODUCT RESEARCH AND DEVELOPMENT . 2015, (9): 1616 -1619 .  DOI: 10.16333/j.1001-6880.2015.09.019