Postharvest handling of Asian specialty vegetables under study.
Zong, R. J.; Cantwell, M. I.; Morris, L. L.;
California Agriculture Year: 1993 Vol: 47 Issue: 2 Pages: 27-29
1993
บทคัดย่อ
Luffa acutangula, Momordica charantia and Benincasa hispida fruits and Vigna sesquipedalis [V. unguiculata subsp. sesquipedalis] pods were harvested at commercial maturity and evaluated periodically during storage for 14 days at 5, 7.5, 10, 12.5 or 15 deg C and after transfer from the colder storage temperatures to 15 deg . Severe chilling injury occurred within 14 days in L. acutangula, M. charantia and V. sesquipedalis stored below 10 deg , and in B. hispida stored below 12.5 deg . Chilling injury symptoms, including surface discoloration, pitting and decay began during cold storage and developed rapidly after transfer to 15 deg . Postharvest fruit development continued at temperatures above 12.5 deg . Changes in respiration rates at 12.5 deg and 15 deg were associated with internal development, whereas changes at 5 deg and 7.5 deg indicated the onset of chilling injury. All 4 vegetables normally produce little ethylene when immature, but exposure to ethylene at 20 deg accelerated ripening and decay and at temperatures below 10 deg , stress ethylene production increased.