通过梅拉德反应与pectin的结合,β-conglycinin的功能性改善
Toshiki Takai1, Hikaru Murai1, Naoko Zushi1
1Department of Applied Biological Science, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509 Japan.
Cytotechnology
|June 10, 2025
概括
梅拉德反应将β-凝聚素与pectin结合,改善了其乳化特性并降低了过敏性. 这种蛋白质修饰增强了食品成分的功能和安全性.
科学领域:
- 食品科学 食品科学 食品科学
- 蛋白质化学 蛋白质化学
- 生物结合的生物结合
背景情况:
- 主要的大豆蛋白β-甘氨酸具有过敏性和低于最佳的乳化特性.
- 素是一种多糖,可以用来修改蛋白质的功能.
研究的目的:
- 通过梅拉德反应,将β-凝聚素与低甲氧核素 (LMP) 和高甲氧核素 (HMP) 结合在一起.
- 为了增强乳化性质,并降低β-凝糖氨酸的过敏性.
主要方法:
- 在65°C,79%相对湿度下5-7天内发生梅拉德反应.
- 使用硫酸氨酸盐分的净化.
- 通过SDS-PAGE,BCA,硫酸和OPA方法进行分析.
主要成果:
- 成功结合得到证实,蛋白质-糖比为1:1.33 (LMP) 和1:0.73 (HMP).
- 素结合屏蔽了自由氨基群,特别是与HMP.
- 在pH 5.0下溶解度通过LMP得到改善;在pH 5.0,7.0和NaCl,特别是通过LMP,乳化特性得到增强.
- 由于HMP的结合,β-conglycinin的抗原性和免疫性被降低.
结论:
- 梅拉德反应中,β-凝聚素与pectin的结合有效地改善了其功能性质,包括溶解性和乳化性.
- 与LMP的结合提高了溶解性和乳化能力,而与HMP的结合显著降低了过敏性.
- 这些经过修改的β - 凝聚素 - pectin结合物提供了作为改善的食品成分具有降低过敏潜在的潜力.
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