食品科学 ›› 2002, Vol. 23 ›› Issue (6): 117-121.

• 分析检测 • 上一篇    下一篇

适用于食品工业中的蔗糖-葡萄糖双功能生物传感分析仪的研究

 冯德荣, 李梅, 朱思荣, 周万里, 黄加栋, 冯东   

  1. 山东省科学院生物研究所
  • 出版日期:2002-06-15 发布日期:2012-02-13

Study on Sucrose -Glucose Bifunctio n Assay of Biosensor Analyzer

 FENG  De-Rong, LI  Mei, ZHU  Si-Rong, ZHOU  Wan-Li, HUANG  Jia-Dong, FENG  Dong   

  • Online:2002-06-15 Published:2012-02-13

摘要: 由固定化蔗糖转化酶(INV),葡萄糖变旋酶(MUT)及葡萄糖氧化酶(GOD)的复合酶膜组成的过氧化氢双电极系统,可同时测定样品中蔗糖和葡萄糖的含量,蔗糖电极的葡萄糖干扰用差分法消除。每次进样量25μl,响应时间30s,蔗糖在0~400mg/dl,葡萄糖在0~200mg/dl范围内具有良好的线性关系,连续测定20次蔗糖和葡萄糖的变异系统分别为1.13%和1.05%。蔗糖测定回收率为99.62%~100.97%,蔗糖酶膜使用寿命半个月。

关键词: 酶电极, 蔗糖, 葡萄糖, 食品工业

Abstract: Thisbiosensorconsistedoftwoimmo bilizedenzymeelectrodes,oneofwhichwasglucoseoxidaseforglucose detection and the other was an integrated membrane of invertase,mutarotase and glucose oxidase for sucrose d etection.Glucose and sucrose could be determined simultaneously with injec tion amount 25μl and response time 30sec-onds.The biosensor showedgoodlinearity among the range of0~400mg /dl ofsucrose and0~200mg /dl ofglucose.The relative response deviationofsucrose andglucose was 1.13%and1.05%respectively in20assays.The reco very rate of sucrose was 99.62~100.97%.The membrane could be usedcontinuously for two weeks.

Key words: Enzyme electrode , Glucose , Sucrose , Food industry