通过温度触发稳定乳液的界面特性和可视化 牛骨高温水解剂
Yan Xiao1, Lingxia Sun1, Donghong Zhang1
1College of Food Science and Technology, Henan Province Meat Processing and Security International Union Laboratory, Henan Agricultural University, Zhengzhou 450002, PR China.
Langmuir : the ACS journal of surfaces and colloids
|March 6, 2025
概括
在70°C的最佳热处理通过改善界面蛋白质结构和网络形成来提高牛骨水解乳液稳定性. 55°C和85°C的温度会对稳定性产生负面影响,因为接口覆盖不足.
科学领域:
- 食品科学与技术 食品科学与技术
- 材料科学 材料科学 材料科学
- 生物化学 生物化学
背景情况:
- 乳液稳定性对于产品质量和保质期至关重要.
- 温度显著影响食品乳液的物理和化学特性.
- 了解热引起的界面特性变化是优化乳液配方的关键.
研究的目的:
- 研究不同工业温度 (55,70,85°C) 对牛骨高温水解乳液稳定性的影响.
- 阐明温度诱导的界面性质调节和总体乳液稳定性之间的关系.
- 为了确定增强乳液稳定性的最佳温度.
主要方法:
- 制备牛骨的高温水解乳液乳液.
- 将乳液暴露在受控温度 (55,70和85°C) 上.
- 界面性质的分析,包括蛋白质结构 (α螺旋,β转,β片),界面形态和键形成 (二硫化物,键).
- 通过滴滴大小测量和聚合观测来评估乳液稳定性.
主要成果:
- 在70°C的热处理改善了接口特性,促进了蛋白质从α-螺旋到β-转向和β-叶片的展开.
- 在70°C观察到平滑的接口,与55°C和85°C的表面孔形成鲜明对比.
- 在70°C时,二硫化物和键加强了接口网络,而在85°C时,交叉连接被损坏.
- 最佳的乳液稳定性,以最小的滴滴大小和没有聚合为特征,在70°C达到.
- 在55°C和85°C时较低的蛋白质度和层厚导致界面覆盖率不足和滴滴聚合.
结论:
- 温度显著改变了牛骨解液乳液的界面特性.
- 70°C的热处理优化了蛋白质结构和界面网络,从而提高了乳液的稳定性.
- 低于最佳温度 (55°C和85°C) 会损害接口覆盖,导致乳液稳定性降低.
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