บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Involvement of lipoxygenase in the postharvest ripening of peach fruit.

Wu Min; Chen KunSong; Zhang ShangLong;

Acta Horticulturae Sinica Year: 1999 Vol: 26 Issue: 4 Pages: 227-231 Ref: 15 ref.

1999

บทคัดย่อ

Involvement of lipoxygenase in the postharvest ripening of peach fruit.

Chinese peach (Prunus persica), cv. Yulu and Cangfangzaosheng, were used to investigate changes in lipoxygenase activity and ethylene production related to fruit softening after harvest. There were 2 phases of fruit softening; fast softening in the earlier phase, causing fruit firmness to decrease from 14.93 kg/cm2 on the 1st day to 5.11 kg/cm2 on the 5th day during Yulu fruit ripening at 20 deg C. A different ripening pattern was observed in Cangfangzaosheng fruit. Ethylene production rose slightly, whereas a marked increase in lipoxygenase activity was observed in the first 4-5 days. The climax in ethylene production was seen 2-3 days later than the maximum lipoxygenase activity in the fruits of both cultivars stored at 20 deg C. When Yulu fruit was stored at 5 deg C, lipoxygenase activity and ethylene production was markedly inhibited and fruit softening was delayed. The possible role of lipoxygenase in fruit ripening is discussed.