文献类型：期刊文献

英文题名：Analysis of differences in volatile flavour compounds in yak milk at different lactation stages: based on HS-GC-IMS detection and OPLS-DA model analysis

作者：Zhou, Yaxi[1,3];Wang, Diandian[1,2];Zhao, Jian[2];Guo, Yu[2];Yan, Wenjie[1,2]

第一作者：Zhou, Yaxi

通讯作者：Yan, WJ[1];Yan, WJ[2]

机构：[1]Beijing Union Univ, Coll Biochem Engn, Beijing 100023, Peoples R China;[2]Beijing Union Univ, Beijing Key Lab Bioact Subst & Funct Food, Beijing 100023, Peoples R China;[3]Chinese Acad Agr Sci, Inst Apicultural Res, State Key Lab Resource Insects, Beijing 100093, Peoples R China

第一机构：北京联合大学生物化学工程学院

通讯机构：[1]corresponding author), Beijing Union Univ, Coll Biochem Engn, Beijing 100023, Peoples R China;[2]corresponding author), Beijing Union Univ, Beijing Key Lab Bioact Subst & Funct Food, Beijing 100023, Peoples R China.|[114172]北京联合大学应用文理学院;[11417]北京联合大学;[1141726]北京联合大学生物化学工程学院;

年份：2026

外文期刊名：JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION

收录：;EI(收录号：20261020233859);WOS:【SCI-EXPANDED(收录号:WOS:001706047400001)】；

基金：This work was financially supported by the National Key Research and Development Program of China (2023YFF1103802).

语种：英文

外文关键词：Fingerprint similarity; HS-GC-IMS; Hierarchical clustering; Volatile compounds; Yak milk

摘要：Yak milk, rich in nutrients, exhibits distinct flavour profiles at different lactation stages. This study utilized headspace gas chromatography-ion mobility spectrometry (HS-GC-IMS) to identify and compare volatile flavour compounds in yak milk from colostrum, mature milk, and late lactation stages. A total of 45 volatile compounds were detected, including ketones, aldehydes, esters, and alcohols. Multivariate statistical analyses, including PCA, OPLS-DA, and hierarchical clustering, revealed significant differences in the volatile compound profiles between the samples from different lactation stages. This research provides the first comprehensive analysis of yak milk flavour changes across lactation stages, offering a novel approach for quality control and product differentiation in the dairy industry.