ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Postharvest water relations in horticultural crops: principles and problems.

Joyce, D.; Patterson, B.;

Postharvest handling of tropical fruits. Proceedings of an international conference, Chiang Mai, Thailand, 19-23 July 1993. Year: 1994 Pages: 228-238 Ref: 46 ref.

1994

บทคัดย่อ

ABSTRACT

A fresh appearance in horticultural products is dependent on water retention. On the other hand, surface water favours microbial spoilage. Good practice in postharvest horticulture includes the control of water transfer between commodity, packaging and refrigeration cooling coils. Temperature differences between package and produce cause water to condense and temperature gradients are particularly difficult to avoid when coolrooms or shipping containers are being stowed, and when transport is from a warm humid environment to markets in cool or cold regions. High humidity storage rooms help keep water within the produce, and condensation is generally not a problem within them. However, they involve extra costs and some packages lose strength as they absorb water from the humid air. Strategies to segregate condensate from the product should be adopted when products are packaged within a water barrier. The principles involved in the control and retention of water in horticultural produce in sealed

packages or in coolrooms are discussed with particular attention to the avoidance of microbial spoilage.