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Degradation of Pentachlorophenol by Potato Polyphenol Oxidase

文献类型: 外文期刊

作者: Hou, Mei-Fang 1 ; Tang, Xiao-Yan 2 ; Zhang, Wei-De 1 ; Liao, Lin 2 ; Wan, Hong-Fu 2 ;

作者机构: 1.S China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510641, Guangdong, Peoples R China

2.Guangdong Inst Ecoenvironm & Soil Sci, Guangdong Key Lab Agr Environm Pollut Integrated, Guangzhou 510650, Guangdong, Peoples R China

3.Zhejiang Agr & Forestry Univ, Fac Forestry & Biotechnol, Lin An 311300, Peoples R China

关键词: pentachlorophenol;polyphenol oxidase;degradation;enzyme

期刊名称:JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY ( 影响因子:5.279; 五年影响因子:5.269 )

ISSN:

年卷期:

页码:

收录情况: SCI

摘要: In this study, polyphenol oxidase (PPO) was extracted from commercial potatoes. Degradation of pentachlorophenol by potato PPO was investigated. The experimental results show that potato PPO is more active in weak acid than in basic condition and that the optimum pH for the reaction is 5.0. The degradation of pentachlorophenol by potato PPO reaches a maximum at 298 K. After reaction for 1 h, the removal of both pentachlorophenol and total organic carbon is >70% with 6.0 units/mL potato PPO at pH 5.0 and 298 K. Pentachlorophenol can be degraded through dechlorination and ring-opening by potato PPO. The work demonstrates that pentachlorophenol can be effectively eliminated by crude potato PPO.

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