FOOD SCIENCE ›› 2003, Vol. 24 ›› Issue (12): 44-46.

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Study on Enzymatic Characteristics of Polyphenol Oxidase of Japan

 YU  Hua, ZHOU  Hong-Bo, HE  Long-Hai, YUAN  Yong-Cheng, ZOU  Shan-Zhi   

  1. 1.Department of Bioengineering, Chengdu University;2.Sichuang Province Extry-exitInspection & Quarantine Bureau
  • Online:2003-12-15 Published:2011-12-13

Abstract: This paper made a through study for many characteristics of polyphenol oxidase of Japan Qiannian number twoeggplant.The results showed that its optimum pH was 6.8,and the optimum temperature was around 30℃.It had less heatstability,and lost 87.57% when it had been heated at 100℃ for 1min.VC,citric acid,NaHSO3,Na2SO3,EDTA-2Na and other colorpreserving agents had inhibiting effect on the activity of polyphenol oxidase,where VC was the most effective inhibitor.

Key words: eggplant, polyphenol oxidase, activity of enzyme, affect factors