A preliminary elemental and isotopic investigation to develop authentication tools for Chinese Ganoderma lucidum
文献类型: 外文期刊
第一作者: Wadood, Syed Abdul
作者: Wadood, Syed Abdul;Nie, Jing;Li, Chunlin;Rogers, Karyne M.;Zhang, Yongzhi;Yuan, Yuwei;Wadood, Syed Abdul;Nie, Jing;Li, Chunlin;Rogers, Karyne M.;Zhang, Yongzhi;Yuan, Yuwei;Wadood, Syed Abdul;Nie, Jing;Li, Chunlin;Rogers, Karyne M.;Zhang, Yongzhi;Yuan, Yuwei;Wadood, Syed Abdul;Li, Zhenhao;Zhang, Nanyan;Rogers, Karyne M.
作者机构:
关键词: Ganoderma lucidum; Stable isotopes; Active compounds; Cultivar; Geographical origin; Authentication
期刊名称:FOOD CONTROL ( 影响因子:6.0; 五年影响因子:5.8 )
ISSN: 0956-7135
年卷期: 2023 年 153 卷
页码:
收录情况: SCI
摘要: Isotope ratio mass spectrometry (IRMS) combined with multivariate analysis was employed to develop a new quality control tool for Chinese Ganoderma lucidum. The effect of growth stage, substrate, cultivar type and geographical origin on the elemental and isotopic compositions was investigated. Stable isotopes (& delta;13C, & delta;15N, and & delta;18O) and elemental contents (%C, %N) showed significant variations at different growth stages. Growth substrate did not impart significant variations on & delta;13C or & delta;18O values; however, & delta;15N values of G. lucidum were strongly associated with the substrate. In addition, large isotopic variations were observed among different G. lucidum cultivars. A strong positive correlation was observed between major active compounds and elemental contents. Finally, classification models based on LDA and PLS-DA were constructed to discriminate the geographical origin of G. lucidum. Both models achieved very high classification rates in both the training and test set (up to 100% accuracy). In conclusion, elemental and isotopic fingerprints along with multivariate statistical analysis showed strong potential in characterizing G. lucidum according to variety, production region and cultivation method. These preliminary results will provide valuable insights in controlling the fraudulent labeling of Ganoderma lucidum and provide authentication tools for regulatory authorities to authenticate origin claims.
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