Post-storage softening and physiological changes of Hayward kiwifruit stored under low temperature and controlled atmosphere.
Lee ChangHoo, Kim SungBok, Kang SungKu, Park ByeongJun and Han DongHyeon
Journal of the Korean Society for Horticultural Science Year: 2001 Vol: 42 Issue: 1 Pages: 87-90.
2001
บทคัดย่อ
Postharvest softening and physiological changes of kiwifruit (Actinidia chinensis [A. deliciosa]) cv. Hayward under air and controlled atmosphere (CA, 0 deg C) storage was investigated for 16 weeks and then fruits were stored on the shelf at ambient temperature (AT) for 7 days. Flesh firmness decreased during storage, but remained higher in CA storage. The decreasing rate of flesh firmness at AT, however, was faster in CA-stored than in air-stored fruits. No difference in flesh firmness was observed between treatments on the seventh day. Titratable acidity of fruit flesh was retained longer in the air-stored fruits throughout storage and at AT, but the soluble solids of air-stored fruits showed a high level only after 8 weeks of storage. Moreover, the soluble solid content increased at AT, irrespective of the previous storage condition, while the titratable acidity showed a marked decrease during the first few days, followed by a gradual increase. Respiration in fruits stored at AT increased during the first few days and subsequently decreased, with air-stored fruits having higher levels of respiration than CA-stored fruits. Ethylene production and ACC oxidase (1-aminocyclopropane-1-carboxylate oxidoreductase) activity of CA-stored fruits increased at AT, while a small change occured in air-stored fruits.