Method for subcritical water extraction of alpha-linolenic acid in flaxseeds

The invention discloses a method for subcritical water extraction of alpha-linolenic acid in flaxseeds. The method comprises the following steps: (1) pretreatment of the flaxseeds: carrying out crushing and sieving to obtain flaxseed powder; (2) subcritical extraction: taking the flaxseed powder, adding pure water containing a food-grade acid-base regulator, conducting heating and pressurizing, and performing stirring and extracting in a water subcritical state; and (3) collection of an extract: after the extraction is finished, carrying out cooling and collecting the extract. Compared with the prior art, the method has the advantages that the alpha-linolenic acid in the flaxseeds is firstly extracted by using subcritical water extraction, an extraction amount is obviously increased, chemical organic reagents are not used, and the method is environment-friendly. 本发明公开了一种利用亚临界水萃取亚麻籽中α-亚麻酸的方法，包括以下步骤：(1)亚麻籽的预处理：粉碎，过筛，得到亚麻籽粉末；(2)亚临界萃取：取亚麻籽粉末，加入含有食品级酸碱调节剂的纯水，升温加压，在水亚临界状态下搅拌萃取；(3)收集萃取液：萃取结束后，冷却，收集萃取液，即得。与现有技术相比，本发明