对蛋酸奶的凝形成的机械洞察:发酵过程中物理化学性质,微观结构和分子间相互作用的动态变化
Jianwei Zang1, Xiaoyang Pan1, Yuanyuan Zhang1
1Jiangxi Key Laboratory of Natural Products and Functional Foods, College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, China.
Food research international (Ottawa, Ont.)
|September 10, 2023
概括
这项研究揭示了蛋酸酸奶中的酸诱导凝是如何发生的. 疏水性相互作用和二硫化物键是发酵过程中形成稳定的凝网络的关键.
科学领域:
- 食品科学 食品科学 食品科学
- 生物化学 生物化学
- 材料科学 是一种材料科学.
背景情况:
- 基于蛋的产品越来越受欢迎.
- 了解酸诱导凝对于产品开发至关重要.
研究的目的:
- 为了阐明蛋酸酸奶中的酸诱导凝的机制.
- 为了研究物理化学性质,质地,形学和微观结构的动态变化.
- 确定分子间力量在凝形成中的作用.
主要方法:
- 监测物理化学性质 (pH,WHC).
- 纹理分析和风湿学测试 (粘度,G',G'').
- 微结构分析 (SEM,颗粒大小) 和表面疏水性评估.
主要成果:
- 蛋白质聚合和交叉链接随着pH值的下降而增加.
- 凝的硬度增加,而破裂性仍然很低.
- 观察到粘度和模块 (G',G'') 的显著增加.
- 疏水性相互作用和二硫化键被确定为凝形成的主要驱动因素.
结论:
- 疏水性相互作用和二硫化物键对于基于蛋的酸奶凝结构至关重要.
- 酸诱导的凝包括蛋白质聚合和网络形成.
- 这些发现为开发新型发酵食品和利用家禽蛋提供了洞察力.
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