不同清洗剂对水果四种残留农药的洗涤效果研究  

Study on washing effect of four pesticide residues in fruits by different detergents

作　　者：罗金凤[1] 王磊[2] 丁晓雯[1] 邓新平[2] 

机构地区：[1]西南大学食品科学学院,重庆市农产品加工重点实验室,重庆400715 [2]西南大学植物保护学院,重庆400715

出　　处：《食品工业科技》2013年第5期291-294,298,共5页Science and Technology of Food Industry

摘　　要：探讨不同清洗剂对水果在模拟体系中污染的四种农药残留的洗涤效果,得到日常生活中简便易行的去除水果农残的方法。分别采用清水、2%食盐水和2%NaHCO3水溶液对圣女果、李子、马奶提葡萄上的四种残留农药进行清洗,然后用气相色谱测定各种农药的含量。清水、2%食盐水和2%NaHCO3水溶液对水果中百菌清的平均洗脱率分别为32%、49%和48%,对敌百虫的平均洗脱率分别为31%、34%和40%,对毒死蜱的平均洗脱率分别为20%、36%和33%,对高效氯氰菊酯的平均洗脱率分别为6%、8%和16%。实验结果显示,清水、2%食盐水和2%NaHCO3水溶液对水果中残留农药的平均洗脱率分别是22%、32%和34%,食盐和NaHCO3水溶液的洗脱效果优于单独使用清水的洗脱效果,使用这两种清洗剂可作为日常去除带皮食用水果中农残的有效方法。In order to make out a simple and feasible way to remove residual pesticide in fruits,the effect of different washing detergents on levels of four pesticide residues in fruits were studied in the simulation system.By washing four kinds of pesticides in cherry tomato, plum and mare＇s milk grape with tap water,2% salt water and 2% NaHCO3 aqueous solution respectively, the pesticide residues content in fruits was measured by gas chromatography.The results showed that the average elution rates of chlorothalonil by tap water,2% salt water and 2% NaHCO3 aqueous solution were 32% ,49% and 48% respectively.The average removal rates of trichlorfon were 31% ,34% and 40% respectively.The average elution rates of chlorpyrifos were 20% ,36% and 33% respectively. The average elution rates of beta-cypemethrin were 6% ,8% and 16% respectively.The pesticide residues in fruits removal rates by tap water, 2% salt water and 2% NaHCO3 aqueous solution were 22%, 32% and 2,4% respectively.The effect of salt water and NaHCO3 aqueous solution were better than using tap water alone.So salt and NaHCO3 these two detergents could be used as effective methods to remove the pesticide residues in belt leather edible fruit in daily life.

关 键 词：农药残留 水果 清洗剂 洗脱率 

分 类 号：TS207.53[轻工技术与工程—食品科学]