碱性脂肪酶型时间-温度指示卡指示剂的研究  

Study on Time-temperature Integrated Indicator Based on Alkaline Lipase

作　　者：宁鹏[1] 徐幸莲[1] 费英[1] 周光宏[1] 

机构地区：[1]教育部肉品加工与质量控制重点实验室农业部农畜产品加工与质量控制重点开放实验室,江苏南京210095

出　　处：《江西农业学报》2008年第8期85-87,共3页Acta Agriculturae Jiangxi

基　　金：江苏省科技成果转化专项资金(BA2005009);江苏省攻关项目(BE2006382)

摘　　要：碱性脂肪酶型时间-温度指示卡是通过反应体系的pH的变化来指示时间和温度的累积效应,因此,需要一种指示剂来指示反应体系的颜色变化。试验通过测定指示剂在不同pH缓冲溶液中的L*、a*和b*的变化,选择适合时间-温度指示卡反应体系的指示剂,并最终确定反应体系酚红-酚酞-百里酚酞混合指示剂为所需要的指示剂。The time-temperature integrated indicator indicated the effects of accumulation of time and temperature through the change of the pH-value of reaction system,so a kind of indicator was necessary to indicate the change of reaction system color.By measuring the change of L^＊,a^＊ and b^＊ of different buffer solutions which were added indicator,a mixture indicator which contained phenol red,phenolphthalein,and thymolphthalein was selected.

关 键 词：指示剂 PH 颜色 时间-温度指示卡 TTI 

分 类 号：TQ421.321[化学工程]