Relationship between pre-heat treatment alleviating chilling injury and activities of cell wall hydrolases of persimmon fruit.
Luo Zi-Sheng, Xi Yu-Fang, Jin Yong-Feng and Zhang Yao-Zhou
Acta Horticulturae Sinica. Vol. 28, No. 6, 2001. p. 554 – 556.
2001
บทคัดย่อ
A study was conducted to determine the effect of pre-heat treatment on chilling injury and the activities of cell wall hydrolases of persimmon fruits. Lower activities of endopolygalacturonase [polygalacturonase], beta -galactosidase, arabinanase and xylanase [xylan endo-1,3- beta -xylosidase] were observed when the fruits were removed from cold storage (1 plus or minus 1 deg C), followed by the ripening at ambient temperature (20 deg C). Pre-heat treatment significantly enhanced the above cell wall hydrolase activities, and significantly decreased the chilling injury index and firmness of persimmon compared to those of persimmon under cold storage, indicating normal fruit ripening.