食品科学 ›› 2011, Vol. 32 ›› Issue (9): 101-106.doi: 10.7506/spkx1002-6630-201109023

• 基础研究 • 上一篇    下一篇

牛血清白蛋白-葡聚糖接枝产物功能特性

林花,于淑娟,许彩虹,杨晓泉   

  1. 1. 华南理工大学 轻工与食品学院
    2.华南理工大学轻工与食品学院食物蛋白研究中心
  • 出版日期:2011-05-15 发布日期:2011-04-11
  • 基金资助:
    国家自然科学基金项目(20776050);广东省自然科学基金项目(7006508)

Functional Properties of Bovine Serum Albumin-Dextran Conjugate Formed via Maillard Reaction

LIN Hua1,YU Shu-juan1,*,XU Cai-hong1,YANG Xiao-quan2   

  1. 1. College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, China; 2. Research and Development Center of Food Proteins, College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, China
  • Online:2011-05-15 Published:2011-04-11

摘要: 研究牛血清白蛋白(BSA)-葡聚糖干热法和湿热法接枝产物的功能特性,结果表明:BSA-葡聚糖干热法接枝产物乳化性能有所提高,起泡性能极大降低,而疏水性降低幅度较小;BSA-葡聚糖湿热法接枝产物乳化性降低幅度较大,起泡性和亲水性都有显著提高。热稳定性和DPPH自由基清除能力研究表明,与BSA相比干热法和湿热法接枝产物的热稳定性都有所提高,但DPPH自由基清除能力均提高不明显。

关键词: 牛血清白蛋白, 葡聚糖, 接枝, 功能特性

Abstract: Functional properties of bovine serum albumin-dextran conjugate produced by dry-heating and water-heating methods were studied. The results indicated that dry-heating method could result in an obvious increase of emulsibility, a significant decrease of foaming capacity and a slight decrease of hydrophobicity. Compared with dry-heating method, water-heating method could significantly improve the foaming capacity and hydrophilicity and largely lower the emulsifying capacity. In addition, bovine serum albumin-dextran conjugates produced by both methods showed higher thermosatablity in comparison with bovine serum albumin, but no obvious increase in DPPH radical scavenging activity was observed.

Key words: bovine serum albumin, dextran, conjugation, functional properties

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