บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Effect of high CO2 and controlled atmosphere (CA) on the ascorbic and dehydroascorbic acid content of some berry fruits.

Agar, I. T.; Streif, J.; Bangerth, F.;

Postharvest Biology and Technology Year: 1997 Vol: 11 Issue: 1 Pages: 47-55 Ref: 21 ref.

1997

บทคัดย่อ

Effect of high CO2 and controlled atmosphere (CA) on the ascorbic and dehydroascorbic acid content of some berry fruits.

Strawberries (cv. Elvira), raspberries (cv. Meeker), black currants (cv. Rosenthals), red currants (cv. Rotet) and blackberries (cv. Thornfree) were stored at 3 different elevated CO2 concentrations, with or without a parallel reduction in O2. Vitamin C content (ascorbic acid plus dehydroascorbic acid) was reduced by high CO2 concentrations (10-30% CO2), particularly in strawberries. This reduction in vitamin C was moderate in black currants and blackberries and almost absent in raspberries and red currants when compared with strawberries. Reducing the O2 concentration in the storage atmosphere in the presence of high CO2 had little effect on vitamin C content. Ascorbic acid decreased more at high CO2 concentrations than dehydroascorbic acid. The results suggest a stimulating effect of high CO2 concentrations on the oxidation of ascorbic acid and/or an inhibition of mono- or dehydroascorbic acid reduction to ascorbic acid.