Method for simultaneously producing five components in flaxseeds

Abstract

The invention discloses a method for simultaneously producing five components in flaxseeds. The method comprises the following steps: (1) primarily extracting linseed gum and lignan from the flaxseeds; (2) performing cold pressing on the degummed linseeds by a hydraulic oil pressing machine to prepare linseed oil; (3) performing peel-kernel separation on the degummed and degreased flaxseeds; (4) crushing the flax peel subjected to peel-kernel separation, and extracting flax gum and secoisolariciresinol diglucoside again; (5) preparing flaxseed oil from the flaxseeds subjected to peel and kernel separation again; (6) extracting flax protein from the degreased flaxseed; (7) separating linseed cyclic peptide from the linseed oil prepared twice; and (8) extracting the flax cyclic peptide from the degreased and deproteinized flaxseed again. The steps are linked, the preliminary extraction or preparation of part of the components provides favorable conditions for the separation of the flax peel and kernel, the extraction or preparation rates of the components and other components are improved after the separation of the flax peel and kernel, the components supplement each other, the cost is low, the process is simple and easy to operate, the method is green and environment-friendly, and large-scale production can be realized; and the five components are produced at the same time, so that the additional value of the flaxseeds is greatly improved.

Description

technical field [0001] The invention relates to a method for simultaneously producing several components from linseed, in particular to a method for simultaneously producing five components such as linseed oil, linseed gum, linseed lignan, linseed protein and linseed cyclopeptide. Background technique [0002] Flax (Linum usitatissimum L.), also known as flax, is one of the seven major oil crops in the world. my country's flaxseed production is second only to Canada, ranking second in the world. Flaxseed contains a variety of valuable components, such as linseed gum, lignans, linseed oil, linseed cyclopeptide, flax protein, etc., while linseed gum and lignans mainly exist in the linseed bark, and flaxseed Oil, flaxcycline, and flax protein are mainly found in the flaxseed kernel. Linseed gum and lignans are directly extracted from non-peeled flax seeds. Since the flax bark is not broken, the extraction rate of flaxseed gum and lignans is low, and there are still high residu...

AI Technical Summary

Problems solved by technology

With the development of society, some flaxseed kernel separation technologies have been developed in recent years. However, due to the high oil content in flaxseed kernels, some of these technologies are only in the laboratory research stage and cannot be applied industrially. Individually applied to actual production, but the high cost and low separation efficiency greatly restrict the large-scale application

Patent CN108686736B discloses "a method for separating linseed shell and kernel based on ethanol wet filtration". When the linseed is broken, the shell is indeed larger than the kernel, but a considerable part of the shell will also be broken into powder In addition, there will also be some linseeds that are not crushed so finely that they cannot pass through the sieve. Therefore, in the actual operation of this method, it is difficult to separate the husks completely, and linseed oil is slightly soluble in ethanol, not easily soluble in ethanol. , so this method consumes a lot of ethanol, has no practical application value, and cannot obtain relatively complete flaxseed kernels