Notes
Inhibition of Tyrosinase Activity by the Anthocyanin Pigments Isolated from Phaseolus vulgaris L.
1997 年 3 巻 1 号 p. 82-83
詳細
1997 年 3 巻 1 号 p. 82-83
The inhibitory effect of bean extracts (Phaseolus vulgaris L.), which showed antioxidative activity on mushroom tyrosinase activity, was investigated. A significant inhibitory effect was achieved by the extracts prepared from colored bean seed coats. This finding indicates that the pigments contained in the seed coats are strongly associated with the inhibition of tyrosinase, therefore, the inhibitory effect of three anthocyanins isolated from red and black beans as antioxidants and their aglycons on tyrosinase activity was determined. Cyanidin 3-O-β-D-glucoside and cyanidin were the best inhibitors of tyrosinase activity. These results indicate that significant inhibitory activity is achieved by a structure which has two hydroxyl groups on the B-ring.
