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ACTA HORTICULTURAE SINICA ›› 2005, Vol. 32 ›› Issue (5): 793-797.

• 研究论文 • Previous Articles     Next Articles

Effect of ABA and GA3 Treatments on the Metabolism of Active Oxygen Species in Cold Stored ‘Brumal Jujube’Flesh

Li Hongwei;Han Tao;Li Liping;Feng Shuangqing;Zhao Yumei   

  1. (1Department of Food Science, Beijing Agricultural College, Beijing 102206, China; 2College of Food Science and Nutrional Engineering, China Agricultural University, Beijing 100083, China)
  • Received:2004-11-29 Revised:2005-04-11 Online:2005-10-25 Published:2005-10-25

Abstract: The changes of active oxygen species in ‘Brumal Jujube’flesh treated with 100 mg·L - 1 ABA or 100μg·L - 1 GA3 during cold storage 〔(0 ±2) ℃, 60 days〕, including the p roduction rate of superoxide anion, contents of malondialdehyde (MDA ) or H2O2 and activities of catalase (CAT) , peroxidase
( POD ) , polyphenoloxidase ( PPO ) and ascorbic acid oxidase (AAO ) , were investigated. The results showed that ABA increased the p roduction rate of superoxide anion, promoted the accumulations of MDA and H2O2 in ‘Brumal Jujube’during storage, the activity peaks of CAT, PPO and POD were advanced, and AAO activity kep t increasing, the content of total phenols decreased sharp ly, all of the parameters above were higher than those in control. They suggested that ABA treatment accelerated the senescence of‘Brumal Jujube’fruit. The effects of ABA on ‘Brumal Jujube’fruit were opposite to GA3.

Key words: Jujube, Storage, ABA, GA3, Active oxygen species

CLC Number: