Effect of postharvest calcium infiltration on firmness, pectin content and occurrence of Botryosphaeria dothidea in apple fruits.
Park SeokHee; Lee ChangUn;
Journal of the Korean Society for Horticultural Science Year: 1996 Vol: 37 Issue: 1 Pages: 81-86 Ref: 18 ref.
1996
บทคัดย่อ
The effect of CaCl2 (1, 2 or 4%) infiltration (infiltrated under pressure or under vacuum or by dipping) on flesh firmness and pectic and Ca contents of apple fruits (cv. Fuji), stored for 3 or 6 months at 4 deg C, was investigated. The concentrations of Ca in peels and flesh of fruits were increased following postharvest CaCl2 treatment. During storage, flesh firmness of Ca-treated fruits was maintained compared with control fruits. Ca-treated fruits had high contents of total, insoluble and EDTA-soluble pectic substances and low contents of water soluble pectin compared with control fruits. Cell walls of Ca-treated fruits had a middle lamella; the middle lamella of control cells was degenerated. Ca-treatment decreased the incidence of decay caused by B. dothidea.