Isotope Ratio Mass Spectrometry (IRMS)-Based Authentication of the Geographic Origins of Volvariella volvacea (Bull.) Singer

文献类型： 外文期刊

第一作者： Liu, Xing

作者： Liu, Xing;Liu, Zhu;Li, Peijun;Liu, Xing;Rao, Qinxiong;Zhang, Qicai;Geng, Hao;Lu, Yangyang;Chen, Shanshan;Song, Weiguo;Liu, Xing;Rao, Qinxiong;Zhang, Qicai;Geng, Hao;Lu, Yangyang;Chen, Shanshan;Song, Weiguo;Liu, Zhu;Li, Peijun

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关键词： Volvariella volvacea; stable isotope; nutrition component; geographic origin; PLS-DA

期刊名称：FOODS （ 影响因子：5.1； 五年影响因子：5.6 ）

ISSN：

年卷期： 2025 年 14 卷 6 期

页码：

收录情况： SCI

摘要： The growing consumption of Volvariella volvacea has heightened concerns regarding its geographical authenticity. This study analyzed the proteins, 16 common amino acids, and 10 mineral elements (Ca, Cu, Fe, K, Mn, Mg, Na, Se, Sr, Zn) in samples from Fujian, Guangdong, Hubei, Jiangsu, Jiangxi, Shanghai, and Zhejiang, China, along with regional variations in stable isotope ratios. PCA and PLS-DA were applied for origin authentication. The results showed an average protein content of approximately 30 g/100 g (dry basis), with Guangdong samples being the highest. Amino acids exhibited significant regional differences, but the total essential amino acid and total amino acid contents did not. Mineral elements varied significantly by region, except for Cu and K. The Fujian, Hubei, Jiangxi, and Zhejiang samples exhibited significantly higher delta 13C and delta 15N values, while Shanghai samples had significantly higher delta 2H and delta 18O values. These differences enabled PCA to classify the samples into two groups: FHJZ (Fujian, Hubei, Jiangxi, Zhejiang) and GJS (Guangdong, Jiangsu, Shanghai). The PLS-DA model achieved 93.60% accuracy in distinguishing these two groups. Pairwise accuracy within the GJS group exceeded 80%, whereas that within the FHJZ group requires further improvement. These findings support the feasibility of stable isotope analysis for authenticating the geographical origin of Volvariella volvacea.

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