Different polyphenols improve the gel properties by altering the crystal density of short-and long-chain acyl triacylglycerols oleogels
文献类型: 外文期刊
作者: Hu, Fang;Zhang, Yingying;Long, Jialing;Zhu, Dayang;Yu, Zhenyu;Zheng, Mingming;Zhou, Yibin;Li, Shiyi
作者机构:
关键词: Short- and long-chain acyl triacylglycerols;Oleogels;Polyphenols;Crystalline network;Oxidation stability
期刊名称: FOOD CHEMISTRY
ISSN: 0308-8146
年卷期: 2025 年 502 卷
页码:
收录情况: SCIE(2025版) ; ; EI(2025版)
摘要: The aim of this study was to investigate the effects of loaded natural polyphenols on the structure of short- and long-chain acyl triacylglycerols oleogels. In this study, five representative polyphenolic compounds, gallic acid (hydroxycinnamic acid), tannic acid (tannins), dihydromyricetin (dihydroflavonols), kaempferol (flavonols) and luteolin (flavones) were selected. The microstructural and macroscopic effects of different polyphenols on the oleogels were examined by polarized light microscopy, infrared spectroscopy, X-ray diffraction, and rheometry. Oleogels loaded with the flavonol or the flavone showed increased oil binding capacity (2.12 % and 2.3 %, respectively) and hardness (0.23 N and 0.25 N, respectively), which corresponded to the formation of the strongest crystalline network structure with the highest crystal density and thermal stability. Additionally, all five polyphenols significantly improved the oxidative stability of the oleogels. Overall, flavones or flavonols were most effective in enhancing the properties of SLCT oleogels by increasing their crystal density and strengthening hydrogen bond forces
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