通过梅拉德反应对素与寡糖的修饰:作为天然乳化剂
Zhenghao Li1, Hua Jiang1, Min Guo2
1College of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
Food research international (Ottawa, Ont.)
|July 26, 2024
概括
梅拉德反应修饰素与寡糖类,如西醇糖类 (XOS),增强蛋白质乳化特性. 这些修改后的蛋白质表现出更好的稳定性和油持有能力,作为有效的天然乳化剂.
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
- 碳水化合物化学 碳水化合物化学
背景情况:
- 素 (CN) 是一种具有功能性质的初级牛奶蛋白.
- 寡糖是碳水化合物,具有潜在的功能益处.
- 梅拉德反应是修改食品成分的常见方法.
研究的目的:
- 通过梅拉德反应研究素与不同寡糖 (FOS,GOS,IMO,XOS) 的改性.
- 评估这些修改对素的功能性和乳液性质的影响.
- 确定这些改性蛋白质作为天然乳化剂的潜力.
主要方法:
- 使用梅拉德反应,素与果酸糖 (FOS),银酸糖 (GOS),异酸糖 (IMO) 和氧酸糖 (XOS) 结合.
- 结合物的特征包括功能组分析和光强度.
- 属性的评估包括水/油持久性,泡,乳液和稳定性.
- 对CN-XOS乳液的具体分析包括滴滴大小和zeta潜力.
主要成果:
- 素与寡糖的共价修改改变了蛋白质结构,增加了空间排斥力和修改了疏水性.
- 持水能力下降,而持油能力和乳化特性有所改善.
- kazein-xylooligosaccharide (CN-XOS) 显示出最显著的改善,乳化活性和稳定性指数分别增加了72%和84.3%.
- CN-XOS乳液呈现出较小的液滴大小,更高的绝对泽塔电位,以及在不同pH和离子度中增强的稳定性.
结论:
- 梅拉德反应对素与寡糖的修饰有效地提高了其乳化能力.
- 与其他合物相比,CN-XOS作为天然乳化剂表现优越.
- 这些发现为利用寡糖胺修饰蛋白质作为功能性食品成分和天然乳化剂提供了科学基础.
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