Department of Food Technology, Engineering and Nutrition, Lund University, P.O. Box 124, 221 00 Lund, Sweden.
Division of Pure and Applied Biochemistry, Lund University, P.O. Box 124, 221 00 Lund, Sweden.
Nutrients. 2021 Mar 18;13(3):988. doi: 10.3390/nu13030988.
It has been suggested that intake of polar lipids may beneficially modulate various metabolic variables. The purpose of this study was to evaluate the effect of oat polar lipids on postprandial and second meal glycemic regulation, blood lipids, gastrointestinal hormones, and subjective appetite-related variables in healthy humans. In a randomized design, twenty healthy subjects ingested four liquid cereal-based test beverages (42 g of available carbohydrates) containing: i. 30 g of oat oil with a low concentration (4%) of polar lipids (PLL), ii. 30 g of oat oil containing a high concentration (40%) of polar lipids (PLH), iii. 30 g of rapeseed oil (RSO), and iv. no added lipids (NL). The products were served as breakfast meals followed by a standardized lunch. Test variables were measured at fasting and during 3 h after breakfast and two additional hours following a standardized lunch. PLH reduced glucose and insulin responses after breakfast (0-120 min) compared to RSO, and after lunch (210-330 min) compared to RSO and PLL ( < 0.05). Compared to RSO, PLH resulted in increased concentrations of the gut hormones GLP-1 and PYY after the standardized lunch ( < 0.05). The results suggest that oat polar lipids have potential nutraceutical properties by modulating acute and second meal postprandial metabolic responses.
有人认为，摄入极性脂质可能有益于调节各种代谢变量。本研究旨在评估燕麦极性脂质对健康人群餐后和第二餐血糖调节、血脂、胃肠激素和主观食欲相关变量的影响。在随机设计中，二十名健康受试者摄入四种基于液体谷物的测试饮料（含 42 克可利用碳水化合物）：i. 含有低浓度（4%）极性脂质（PLL）的 30 克燕麦油，ii. 含有高浓度（40%）极性脂质（PLH）的 30 克燕麦油，iii. 30 克菜籽油（RSO），iv. 不含添加脂质（NL）。这些产品作为早餐餐提供，随后是标准化午餐。在空腹和早餐后 3 小时以及标准化午餐后另外 2 小时测量测试变量。与 RSO 相比，PLH 降低了早餐后（0-120 分钟）和午餐后（210-330 分钟）的葡萄糖和胰岛素反应（<0.05）。与 RSO 相比，PLH 导致标准化午餐后 GLP-1 和 PYY 等胃肠激素的浓度增加（<0.05）。结果表明，燕麦极性脂质通过调节急性和第二餐餐后代谢反应具有潜在的营养特性。
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