Xu et al.
(2005), Huang et al. (2004) studied the extraction technology
of anthocyanin from black soybean coat (ABSC)
and found that ABSC could well scavenge the hydroxy
free radical (OH.), the superoxide free radical ( 0 2 y ) ,
and l,l-dipheny1-2-picryl-hydrazy(lD PPH-) in vitro.