Rapid authenticity assessment of PGI Hongyuan yak milk based on SICRIT-QTOF MS

文献类型： 外文期刊

第一作者： Zhang, Zixuan

作者： Zhang, Zixuan;Qie, Mengjie;Bai, Lu;Zhao, Shanshan;Li, Yalan;Yang, Xiaoting;Zhao, Yan;Zhang, Zixuan;Bai, Lu;Liang, Kehong

作者机构：

关键词： Food authentication; Protected geographical indications; Milk; SICRIT-QTOF MS; Differential compounds

期刊名称：FOOD CHEMISTRY （ 影响因子：8.8； 五年影响因子：8.6 ）

ISSN： 0308-8146

年卷期： 2024 年 442 卷

页码：

收录情况： SCI

摘要： Hongyuan (HY) yaks live in a pollution -free environment, making HY yak milk a green food, but their short milk production period and low milk yield make yak milk precious and expensive. The phenomenon of counterfeiting HY yak milk with ordinary milk from other origins has already occurred, so the authenticity assessment of HY yak milk is necessary. This study developed a rapid soft ionisation by chemical reaction in transfer quadrupole time -of -flight mass spectrometry (SICRIT-QTOF MS) for HY yak milk differences assessment. Principal component analysis and orthogonal least squares discriminant analysis showed differences between HY milk and the other three origins. Twenty-eight differential compounds were screened out by variable importance in projection, fold change, P -value, and database matching. Furthermore, six characteristic compounds (proline, 2-hydroxy-3-methylbutyric acid, and L-isoleucine, etc.) of HY samples were putatively identified. The study demonstrated that SICRIT-QTOF MS has great potential for rapidly distinguishing the milk origin.

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