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

文献类型： 外文期刊

第一作者： Zhao, Shanshan

作者： Zhao, Shanshan;Zhao, Yan;Liang, Kehong;Zhu, Hong;Liu, Haijin

作者机构：

关键词： flaxseed; traceability; stable isotopes; fatty acids; antioxidant activity

期刊名称：JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE （ 影响因子：3.639； 五年影响因子：3.803 ）

ISSN： 0022-5142

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收录情况： SCI

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. (c) 2021 Society of Chemical Industry.

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