电解离子水中羟自由基的产生规律  

Forming rules of hydroxyl radicals produced in electrolyzed water

作　　者：万阳芳[1] 李慧颖[2] 刘俊果[1] 郝建雄[1] 刘海杰[3] 

机构地区：[1]河北科技大学生物科学与工程学院,河北石家庄050018 [2]河北科技大学化学与制药工程学院,河北石家庄050018 [3]中国农业大学食品科学与营养工程学院,北京100083

出　　处：《食品工业科技》2015年第5期49-52,共4页Science and Technology of Food Industry

基　　金：科技部十二五支撑计划项目(2012BAD29B04-1);国家自然基金项目(31301571);河北省自然基金项目(C2013208163)

摘　　要：对不同电解离子水以及次氯酸钠溶液产生羟自由基能力进行了研究,结果表明：当有效氯浓度为17mg/L,p H变化不会对电解离子水的产生羟自由基能力有显著影响;当有效氯浓度为60mg/L时,产生羟自由基能力随着p H升高而升高;微酸电解离子水在0-24h范围内的羟自由基变化不明显,强酸电解离子水在17℃和4℃的贮藏温度下,产生羟自由基的能力均在贮藏时间为5h时达到最大;在不同p H和有效氯浓度范围内,电解离子水产生羟自由基能力均要比次氯酸钠溶液强。The ability to generate hydroxyl radicals of the different electrolyzed water and the sodium hypochlorite solution in the process of storage was investigated.The results showed that the changes of pH did not affect the ability of electrolyzed water to generate hydroxyl radicals when the available chlorine concentration was 17mg/L. When the available chlorine concentration was 60mg/L,the ability to generate hydroxyl radicals increased with the pH increasing,the hydroxyl radicals in slightly acidic electrolyzed water did not change significantly within 0-24h, the concentration of hydroxyl radicals reached the maximum when the storage time of 5h both at 17% and 4℃.At the different pH and the available chlorine concentration, and the capacity of electrolyzed water to produce hydroxyl radicals was stronaer than that of sodium hvnochlorite solution.

关 键 词：电解离子水 羟自由基 次氯酸钠 生成规律 

分 类 号：TS251.1[轻工技术与工程—农产品加工及贮藏工程]