บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Use of passive and semi-active atmospheres to prolong the postharvest life of avocado fruit.

Yahia, E. M.; Gonzalez-Aguilar, G.;

Lebensmittel-Wissenschaft & Technologie Year: 1998 Vol: 31 Issue: 7/8 Pages: 602-606 Ref: 17 ref.

1998

บทคัดย่อ

Use of passive and semi-active atmospheres to prolong the postharvest life of avocado fruit.

Avocado (cv. Hass) fruits were individually wrapped in 4 low-density polyethylene (LDPE) and one high-density (HDPE) film and stored at 5 deg C and 85% RH for 4 weeks. Film thickness varied from 0.013 to 0.066 mm. Three modified atmosphere (MA) systems were evaluated: (1) a passive system, where no gases were introduced to the packages other than the initial air, (2) a semiactive system, where 100 ml CO2 was injected into each package immediately after sealing, and (c) a semiactive system, where 100 ml CO2 and 200 ml N2 were injected into the packages immediately after sealing. In-package concentrations of O2, CO2 and ethylene were measured at 3-day intervals and fruits were evaluated every week for weight loss, firmness and chilling injury. MA packaging reduced the incidence of chilling injury and prolonged the storage life of avocados by reducing weight loss and flesh softening. The thicker films gave the best results. Both semiactive systems reduced ethylene accumulation but did not have any

additional benefits over the passive system, possibly owing to the short period for which the initially modified atmosphere was maintained.