บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Postharvest studies on four fruit-type Chinese vegetables.

Zong, R. J.; Cantwell, M.; Morris, L.; Rubatzky, V.;

Acta Horticulturae Year: 1992 Issue: No. 318 Pages: 345-354 Ref: 11 ref.

1992

บทคัดย่อ

Postharvest studies on four fruit-type Chinese vegetables.

Studies on the postharvest quality and physiology of Luffa acutangula, Momordica charantia, Benincasa hispida and Vigna sesquipedalis [V. unguiculata subsp. sesquipedalis] were conducted over a range of storage temperatures (0, 5, 7.5, 10, 12.5, 15 or 20 deg C with 90-95% RH) and after transfer to 15 deg for 2-3 days to simulate marketing conditions. All of these immature fruit vegetables are chilling sensitive and should not be held below 10-12.5 deg for a storage period of 2 weeks. Visual quality, seed development or other growth-related parameters, colour change, chilling symptoms and decay were rated on a hedonic scale of 1-9 where 5 indicates minimum commercial acceptability. Visual chilling symptoms were accentuated after transfer from storage temperatures to 15 deg and included pitted lesions, russeting, black and brown surface discolorations and a high incidence of decay. Fruit development (seed development, colour changes) continued during storage at temperatures >12.5 deg . Respiration rates at 10 and 20 deg were highest (46 and 110 mu l CO2 g-1 h-1, respectively) for V. sesquipedalis, lowest (11 and 22 mu l CO2 g-1 h-1, respectively) for B. hispida and intermediate for M. charantia (15 and 34 mu l CO2 g-1 h-1, respectively) and L. acutangula (19 and 44 mu l CO2 g-1 h-1, respectively). All 4 fruits produced very little ethylene, but exposure to 10 p.p.m. ethylene caused accelerated colour and ripening-related changes, with V. sesquipedalis and M. charantia being the most sensitive.