Studies on the Browning in the Petals of Chrysanthemum indicum var. indica Max. (f. sin-dong-a) and leaves of Artemisia vulgaris var. indica Max.

Chrysanthemum indicum var. indica Max. (f.sin-dong-a)의 꽃잎 및 Artemisia vulgaris var. indica Max. 잎의 갈변에 관한 연구

Polypenol oxidase activity in the petals of Chysanthemum indicum var. indica Max. (f.sin-dong-a) and the leaves of Artemisia vulgaris var. indica Max was estimated by means of Warburg's manometric method. The browning reaction in owing to the oxidation of chlorogenic acid with polyphenol oxidase.