Stable isotopic fingerprints of genuine and "bathing" cultured Chinese mitten crabs (Eriocheir sinensis) in Yangcheng Lake, China

文献类型： 外文期刊

第一作者： Xue, Junren

作者： Xue, Junren;Yang, Jian;Jiang, Tao;Chen, Xiubao;Liu, Hongbo;Yang, Jian

作者机构：

关键词： Authentication; Adulteration; Yangcheng Lake; Eriocheir sinensis; "Bath" culture; Stable isotopes

期刊名称：MICROCHEMICAL JOURNAL （ 影响因子：4.8； 五年影响因子：4.5 ）

ISSN： 0026-265X

年卷期： 2024 年 199 卷

页码：

收录情况： SCI

摘要： The isotopic ratios of C, N, H, and O (i.e., delta 13C, delta 15N, delta 2H, and delta 18O) in the third pereiopods of genuine and onemonth "bathing" cultured foreign Chinese mitten crabs (Eriocheir sinensis) were analyzed to distinguish between them in Yangcheng Lake. The isotopic fingerprints were clarified using one-way analysis of variance, principal component analysis (PCA), and linear discriminant analysis (LDA). PCA accurately distinguished Yangcheng Lake crabs from "bathed" crabs based on their C, N, H, and O isotopic profiles before or after bathing. Similarly, the LDA of the chemometric fingerprints showed good performance for accurate discrimination between the genuine and "bathed" crabs. This study successfully identified "bathed" crabs, showing that foreign crabs cannot acquire the isotopic "fingerprint" of genuine Yangcheng Lake crabs, even after only a short bathing period. Stable isotopic fingerprints have potential applications in distinguishing "bathed" crabs from Yangcheng Lake crabs.

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