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Comparative analysis of the fatty acid profiles in goat milk during different lactation periods and their interactions with volatile compounds and metabolites

文献类型： 外文期刊

作者： Guang qin Liao;Hao lei Han;Tian cai Wang;Hou ru Li;Yong zhong Qian;Mai xun Zhu;Qi Jia;Jing Qiu

作者机构：

关键词： Fatty acid;Goat milk;Human milk;Integrated analysis;Lactation;Volatile

期刊名称： Food Chemistry

ISSN： 0308-8146

年卷期： 2024 年 460 卷

页码：

收录情况： SCIE（2024版） ; ; EI（2024版）

摘要： This study aimed to compare the composition of fatty acids in goat milk during lactation with human milk, as well as analyze the differences in their interaction with odor and metabolites. Polyunsaturated fatty acids content was higher in human milk, while odd-chain, branched-chain, and monounsaturated fatty acids content were higher in goat milk with a decreasing trend during lactation. PUFAs in human milk undergo auto-oxidation to produce aldehydes (hexanal), giving it a mild aroma. Butyric acid in goat colostrum mediates the synthesis and auto-oxidation of PUFA, while taurine mediated the hydrolysis of amino acids. They produce a furanone compound (2(5H)-furanone) with a buttery flavor. The presence of butyric acid in goat transitional milk had an impact on flavor and metabolites. The medium chain fatty acid composition of the goat mature milk was affected by nucleic acid compounds, which then oxidized to produce methyl ketone (2-nonanone), giving it an unpleasant flavor.

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