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通过超声波相位速度探测乳化剂调节脂质结晶的分子机制

Lifen Zhang¹, Kunlong Lai², Noriko Kitaori³

¹Fujian Provincial Key Laboratory of Ecology-Toxicological Effects and Control for Emerging Contaminants, College of Environmental and Biological Engineering, Putian University, Putian 351100 Fujian, China; KeyLaboratory of Loquat Germplasm Innovation and Utilization(Putian University), Fujian Province University, College of Environmental and Biological Engineering, PutianUniversity, Putian 351100 Fujian, China.

Ultrasonics sonochemistry

|June 27, 2025

概括

超声波相位速度精确监测乳化剂对脂质结晶的影响,提供比DSC更早的检测. 这样可以优化食品的质地和稳定性,从而降低成本.

科学领域:

食品科学食品科学食品科学
材料科学材料科学材料科学
物理化学物理化学

背景情况:

脂质结晶显著影响食品质量.
乳化剂对分子调节的了解很少.
糖脂肪酸 (SFEs) 是重要的食品乳化剂.

研究的目的:

通过SFEs量化化子油 (HCO) 结晶的分子调节.
建立超声波相位速度作为一个精确的监测工具.
将声学特性与结晶行为相关联.

主要方法:

集成的超声波相位速度,差异扫描热量计 (DSC) 和小角度X射线散射 (SAXS).
研究了三种SFE (C12:0,C18:0,C18:1) 和它们对HCO结晶的影响.
开发了三种模式模型来解释结晶变异.

主要成果:

阶段速度与结晶度 (R2 > 0.99) 有很强的相关性,比DSC早15-30分钟检测出发作.
酸显示出不同的机制:酸扩展晶体,酸延迟结晶高达40%,酸破坏了排序.
一个三种模式的模型解释了91%的结晶变异.

结论:

超声波相位速度是一种精确的 (0.035%分辨率),非破坏性的工具,用于实时监测脂质结晶.
基于这些见解的乳化剂选择可以优化食品的质地和稳定性.
研究结果显示,在粮食生产中,潜在的成本降低可达15-20%.

关键词:

可压缩性压缩性脂质结晶化脂质结晶化分子机制的分子机制糖脂肪酸 Ester 是一种脂肪酸.超声波相位速度的超声波速度.

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