บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Changes in phenol oxidase and peroxidase levels in cocoyam tubers of different postharvest ages infected by Sclerotium rolfsii sacc.

Ohazurike, N. C.; Arinze, A. E.;

Nahrung Year: 1996 Vol: 40 Issue: 1 Pages: 25-27 Ref: 16 ref.

1996

บทคัดย่อ

Changes in phenol oxidase and peroxidase levels in cocoyam tubers of different postharvest ages infected by Sclerotium rolfsii sacc.

Crude aqueous extracts from the peripheral rot zone of cocoyam tubers (Colocasia esculenta and Xanthosoma sagittifolium) were shown to be inhibitory to dialysed in vivo polygalacturonase (PG) of S. rolfsii [Corticium rolfsii]. This inhibitory activity and the phenol and peroxidase activities were higher in X. sagittifolium than in C. esculenta extracts. The levels of these enzymes decreased as the postharvest age of the tubers increased.