Fatty Acid Release and Gastrointestinal Oxidation Status: Different Methods of Processing Flaxseed

文献类型： 外文期刊

第一作者： Zhang, Mingkai

作者： Zhang, Mingkai;Zhang, Mingkai;Chen, Yashu;Deng, Qianchun;Chen, Hongjian

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关键词： flaxseed processing technology; simulated digestion; lipid oxidation

期刊名称：FOODS （ 影响因子：5.2； 五年影响因子：5.5 ）

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年卷期： 2024 年 13 卷 5 期

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收录情况： SCI

摘要： Flaxseed has been recognized as a superfood worldwide due to its abundance of diverse functional phytochemicals and nutrients. Various studies have shown that flaxseed consumption is beneficial to human health, though methods of processing flaxseed may significantly affect the absorption and metabolism of its bioactive components. Hence, flaxseed was subjected to various processing methods including microwaving treatment, microwave-coupled dry milling, microwave-coupled wet milling, and high-pressure homogenization. In vitro digestion experiments were conducted to assess the impact of these processing techniques on the potential gastrointestinal fate of flaxseed oil. Even though more lipids were released by the flaxseed at the beginning of digestion after it was microwaved and dry-milled, the full digestion of flaxseed oil was still restricted in the intestine. In contrast, oil droplets were more evenly distributed in wet-milled flaxseed milk, and there was a greater release of fatty acids during simulated digestion (7.33 +/- 0.21 mu mol/mL). Interestingly, wet-milled flaxseed milk showed higher oxidative stability compared with flaxseed powder during digestion despite the larger specific surface area of its oil droplets. This study might provide insight into the choice of flaxseed processing technology for better nutrient delivery efficiency.

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