Ji Junmin, Liu Yulan, Ge Zhengfa, Zhang Yan, Wang Xuede
College of Food Science and Technology, Henan University of Technology.
J Oleo Sci. 2019 Aug 1;68(8):709-718. doi: 10.5650/jos.ess19063. Epub 2019 Jul 10.
Foxtail millet (FM) is one of the oldest cultivated grain crops with a variety of nutritions, and foxtail millet bran (FMB), a by-product of FM milling process, is also rich in variety of nutrient substance. There are four classifications of FMB, namely coarse bran (FMCB), skin bran (FMSB), polished bran (FMPB) and mixed bran (FMMB). Because these nutrients are distributed within the different fractions of FMB, we compared some chemical composition and its oleochemical properties of four FMB samples. Results showed that the oil extracted from FMB is high value-added plant oil. It contains abundant unsaturated fatty acid (UFA), with the main UFAs were linoleic acid (65%69%) and oleic acid (1217%), which accounted for more than 80% of the lipids. The main triacylglycerols were trilinolein (LLL) and oleodilinolein (OLL). There were no evident difference on fatty acid, triacylglycerol and sterols profiles for FMSB, FMPB and FMMB, but the contents of amino acids, tocols, squalene and oryzanol were different.
谷子是最古老的栽培谷物作物之一，营养丰富，而谷子麸皮作为谷子碾磨过程中的副产品，也富含多种营养物质。谷子麸皮有四种分类，即粗麸皮、种皮麸皮、精麸皮和混合麸皮。由于这些营养成分分布在谷子麸皮的不同部分，我们比较了四种谷子麸皮样品的一些化学成分及其油脂化学性质。结果表明，从谷子麸皮中提取的油是高附加值的植物油。它含有丰富的不饱和脂肪酸，主要的不饱和脂肪酸是亚油酸（65%69%）和油酸（12%17%），它们占脂质的80%以上。主要的三酰甘油是三亚油酸甘油酯和油二亚油酸甘油酯。种皮麸皮、精麸皮和混合麸皮在脂肪酸、三酰甘油和甾醇谱上没有明显差异，但氨基酸、生育酚、角鲨烯和谷维素的含量不同。
