Articles

CACL2 INFILTRATION ON ´KLOM SALI´ GUAVA QUALITY AT LOW TEMPERATURE STORAGE

Article number
712_111
Pages
851 – 856
Language
English
Abstract
Softening is a main postharvest problem of fresh guava (Psidium guajava Linn.) in Thailand because Thais prefer consuming firm and crispy guava.
CaCl2 has been applied to many fresh produce to delay ripening and improve the firmness. ‘Klom Sali’ guava fruit harvested at 15 weeks after anthesis were applied with 4 different concentrations of CaCl2 at 0, 1, 2, and 4% (w/v) using a partial vacuum infiltration under 460 mmHg for 5 min and then stored at 10°C with 90-95% RH. Calcium treatments effectively maintained fruit firmness compared to non-treated fruit.
Respiration of all treatments decreased after storage of storage and remained stable without significance.
Fruit infiltrated with 4% CaCl2 showed slightly skin injury as scattered-browning generated around the fruit related to increasing b Hunter scales.
There were no significant between treatments in ascorbic acid, soluble solids and titrated acids contents.
CaCl2 infiltration at 2% showed a good option to maintain firmness.

Publication
Authors
C. Wongs-Aree, V. Srilaong
Keywords
Psidium guajava L., calcium chloride, partial infiltration, softening, firmness, quality
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