数字农科院2.0

Determining the geographical origin of flaxseed based on stable isotopes, fatty acids and antioxidant capacity

文献类型： 外文期刊

作者： Liang K.; Zhu H.; Zhao S.; Liu H.; Zhao Y.

作者机构：

关键词： antioxidant; fatty acid; isotope; chemistry; China; classification; discriminant analysis; flax; plant seed; principal component analysis; Antioxidants; China; Discriminant Analysis; Fatty Acids; Flax; Isotopes; Principal Component Analysis; Seeds

期刊名称： Journal of the Science of Food and Agriculture

ISSN： 0022-5142

年卷期： 2022 年 102 卷 2 期

页码：

收录情况： SCIE（2022版）

摘要： BACKGROUND: Flaxseed is an economically important oilseed crop whose geographic origin is of significant interest to producers and consumers because every region may exhibit particular quality characteristics. The lipid/fatty acid method of determining the geographic origin of flaxseed has not been found to be adequate. RESULTS: To improve the discrimination rate and the geographical traceability of this crop, the chemical profiles of the flaxseed samples were characterized via lipids/fatty acids, stable isotopes, and antioxidant capacity. Principal component analysis (PCA) and orthogonal partial least squares discriminant analysis (OPLS-DA) were also performed. A satisfactory discrimination rate of 98.6% was obtained after combining fatty acids, stable isotopes, and antioxidant capacity to trace the origin of flaxseed from five regions in northern China. CONCLUSION: This study provides an effective method for distinguishing the geographic origin of flaxseed. © 2021 Society of Chemical Industry. © 2021 Society of Chemical Industry.

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