ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Effect of diazocyclopentadiene (DACP) on tomato fruits harvested at different ripening stages.

Sisler, E. C.; Lallu, N.;

Postharvest Biology and Technology Year: 1994 Vol: 4 Issue: 3 Pages: 245-254 Ref: 22 ref.

1994

บทคัดย่อ

ABSTRACT :

Treatment of tomato fruits with fluorescent-light-exposed diazocyclopentadiene (DACP) retards the development of red colour by blocking the ethylene receptor. In experiments with cv. Rondello fruits, DACP treatment delayed red colour development at 22 deg C by 8 days in red, 12 days in pink and 14-16 days in mature green fruits. After treatment with DACP, ethylene production in pink and dark red fruits declined, but after 3-4 days there was a rise in ethylene production. In treated mature green fruits, ethylene production remained low but after 10 days there was a rise in ethylene production which considerably exceeded the rate of ethylene production in control fruits. In control and treated fruits, CO2 production was higher in pink and red fruits than in mature green fruits and a maximum occurred sooner in pink and red fruits than in mature green fruits. DACP treatment depressed CO2 production and delayed the peak in CO2 production. In mature green fruits, there appeared to be 2 peaks in CO2 pr

oduction, one at 6 days and another later. The results indicate that ethylene is required at all stages of ripening and that ripening is an ethylene driven process that can be retarded even at late stages of ripening.