Study on the geographical origin and characteristic differential components of Qianbei Ma lamb based on rapid evaporative ionization mass spectrometry

Ji Zhang, Rui Hou, Yuhang Luo, Xiaohong Zhang, Hong Luo, Lei Ling and Liping Xiang
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Ji Zhang: Zunyi Product Quality Inspection and Testing Institute, Zunyi, China
Rui Hou: Zunyi Product Quality Inspection and Testing Institute, Zunyi, China
Yuhang Luo: Zunyi Product Quality Inspection and Testing Institute, Zunyi, China
Xiaohong Zhang: College of Pharmacy, Zunyi Medical University, Zunyi, China
Hong Luo: Zunyi Product Quality Inspection and Testing Institute, Zunyi, China
Lei Ling: Zunyi Product Quality Inspection and Testing Institute, Zunyi, China
Liping Xiang: Zunyi Product Quality Inspection and Testing Institute, Zunyi, China

Czech Journal of Food Sciences, 2025, vol. 43, issue 1, 59-70

Abstract: A rapid evaporative ionization mass spectrometry (REIMS) method combined with intelligent knife (iKnife) method was developed to explore the geographical origin and characteristic differential components of Qianbei Ma lamb. The REIMS conditions were initially refined, with the cauterization duration of 3 seconds, and the auxiliary solvent flow rate set to 100 μL.min-1 to prevent duplication. A database model was created from raw data through the proposed principal component analysis-linear discriminate analysis (PCA-LDA) in Live ID software, successfully applied to identify samples from 5 provinces in China and the real-time reliable identification rate with confidence higher than 99%. The obtained data by REIMS were used to establish the multivariate statistical models which using orthogonal projection to latent structures discriminant analysis (OPLS-DA), provided strong the discrimination power between composition and content changes of 16 specific ions such as m/z 726.3952 and m/z 744.4050, etc., including fatty alcohols, fatty acids and phosphatidylserines in mutton of different origin and the model displayed validation [R2(Y) = 0.968, Q2 = 0.924].

Keywords: REIMS; real-time discrimination; Qianbei Ma lamb; different origins; multivariate statistical analysis; chemometrics (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlcjf:v:43:y:2025:i:1:id:159-2024-cjfs

DOI: 10.17221/159/2024-CJFS

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