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ε-聚赖氨酸与葡聚糖美拉德反应初级阶段产物的乳化性研究

闫冰 房子舒 高彦祥 袁芳

食品工业科技2012,Vol.33Issue(9):53-57,61,6.
食品工业科技2012,Vol.33Issue(9):53-57,61,6.

ε-聚赖氨酸与葡聚糖美拉德反应初级阶段产物的乳化性研究

Study on emulsifying properties of ε-polylysine-dextran conjugates prepared from primary stage of Maillard reaction

闫冰 1房子舒 1高彦祥 1袁芳1

作者信息

  • 1. 中国农业大学食品科学与营养工程学院,北京100083
  • 折叠

摘要

Abstract

Emulsifying properties of protein can be improved through Maillard reaction.The conjugation of ε-polylysine and dextran by dry heating was studied.Emulsifying property of ε-polylysine-dextran conjugates were compared at different reaction temperature,relative humidities,reaction time,weight ratio of dextran to ε-polylysine,pH by determining changes in emulsion turbidity,droplet size and turbiscan analysis.Browning index and degree of graft(DG)proved the conjugation of ε-Polylysine and dextran.It was found that the ε-polylysine-dextran conjugates formed with ε-polylysine and dextran(1:15 weight ratio)at 60℃,RH 65% for 1~3 days had better emulsifying activity and emulsifying stability than ε-polylysine and dextran alone.Conjugates prepared for 1d had better emulsifying activity,low browning index,and the DG was about 26.4%.Conjugates formed with ε-Polylysine and dextran(1:10 weight ratio)for 1d had the best emulsifying stability.

关键词

ε-聚赖氨酸/葡聚糖/美拉德反应/乳化性/褐变指数

Key words

ε-polylysine/dextran/Maillard reaction/emulsifying properties/browning index

分类

轻工纺织

引用本文复制引用

闫冰,房子舒,高彦祥,袁芳..ε-聚赖氨酸与葡聚糖美拉德反应初级阶段产物的乳化性研究[J].食品工业科技,2012,33(9):53-57,61,6.

基金项目

“国家大学生创新性实验计划”项目 ()

食品工业科技

OA北大核心CSCDCSTPCD

1002-0306

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