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Effects
of tea manufacture process on decomposition of dichlorvos residues SUN Jiping DU Dehong XU Zhaoxue WANG Dongfeng Deaprtment of Food Science and Technology, Ocean University of China, Qingdao 266003, China Abstract: . Dichlorvos was applied to tea fields and the tea leaf was picked after eight days for test. The change of dichlorvos concentration and phosphatase activity were determined at each stage of tea processing. The results showed that dichlorvos concentration was decreased by 25.83%, 63.33% at stages of withering and fermentation. It was not detected in the dry black tea. Dichlorvos concentration in green tea was also investigated. Key words: Tea, pesticide, dichlorvos, processing, acid phosphatase |
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加工工艺对茶叶中敌敌畏残留降解的影响 孙继鹏 杜德红 徐召学 汪东风 |
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茶树是叶用作物,生长及收获季节正是病虫害易发季节.在此季节中,生产者为提高产量和质量,常要使用农药.由于茶叶是直接制自茶树新梢芽叶,随着人们生活水平的提高和加入WTO后,国内外消费者对茶叶中农药残留问题给予了极大关注,并对茶叶中农药残留量的要求也越来越严.尽管各级政府倡导茶叶无公害及有机茶的生产,消费者也青睐茶叶绿色产品,但在茶园中禁止使用农药,近期还不太可能.因此,随茶叶安全性要求越来越高,有关茶叶中农药的降解研究已引起了人们的极大关注. 关键词:茶叶;农药;敌敌畏;加工;酸性磷酸酶 |
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作者简介:孙继鹏,男(1979年-),硕士生,研究方向是食品生物化学及食品安全. 参考文献: [1]蔡知凌,周崎.福州口岸出口欧盟茶叶卫生状况浅析.福建茶叶,2001,(3):42-43 |
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收稿日期:2004年11月5日 出版日期:2005年9月10日 |
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