臭氧溶解特性及对哈密瓜中农药残留降解的研究  

Ozone Dissolution Characteristics and Removal Effect of Pesticide Residues in Cantaloupes by Ozone Water

作　　者：王琼[1] 姜微波[2] 曹建康[2] 李红卫[1] 

机构地区：[1]北京农学院食品科学与工程学院/农产品有害微生物及农残安全检测与控制北京市重点实验室/食品质量与安全北京实验室,北京102206 [2]中国农业大学食品科学与营养工程学院,北京100083

出　　处：《中国农学通报》2014年第25期207-212,共6页Chinese Agricultural Science Bulletin

基　　金：公益性行业(农业)科研专项经费项目"西北特色水果贮运保鲜技术集成与示范"(201303075);果蔬贮藏加工营养安全研究团队(PXM2013_014207_000048);农产品贮藏加工北京市重点建设学科(PXM2013_014207_000057)

摘　　要：为探讨臭氧水处理对农残降解的影响,研究了臭氧水的溶解特性以及臭氧水在不同浓度、不同处理时间、不同pH和不同处理方式对哈密瓜中4种农残(马拉硫磷、毒死蜱、高效氯氰菊酯和百菌清)降解的效果。结果表明:臭氧的溶解度随吸收液体积增大、pH的升高而下降,pH 4时的溶解度最高为10.15 mg/L;哈密瓜中4种农残的降解率随着臭氧浓度的增加、浸泡时间的延长均有不同程度的提高;动态臭氧水处理的降解率显著高于静态处理(P<0.05);pH 10的臭氧水动态处理30 min效果最佳,马拉硫磷、毒死蜱、高效氯氰菊酯、百菌清4种农药的降解率分别是90.87%、85.62%、78.31%和85.26%。In order to investigate the effect of ozone treatment on pesticide degradation, this paper studied the ozone water solubility characteristics and the effect of different concentrations of ozone in water, different treatment times and different pH, different handling ways on cantaloupe which with four kinds of pesticide residues （malathion, chlorpyrifos, cypermethrin and chlorothalonil） degradation. The results showed that： the solubility of ozone decreased with increase of the volume of the absorbing solution and pH value, at pH 4 the solubility was up to 10.15 mg/L. With the increased of ozone concentration and immersion time, the degradation of 4 kinds of pesticide residues at different degree rate increased in cantaloupe. Degradation rate of dynamic ozone water was significantly higher than the static ozone water treatment （P〈0.05）. Best result was obtained in pH 10 dynamic ozone water treatment for 30 min, malathion, chlorpyrifos, cypermethrin, chlorothalonil degradation rate of four pesticides were 90.87%, 85.62%, 78.31% and 85.26%.

关 键 词：哈密瓜 臭氧水 溶解特性 农药残留 降解率 

分 类 号：TS207.5[轻工技术与工程—食品科学]