Method for producing linen glue

Abstract

The production process of linen glue with linen seed as material includes the following steps: mixing linen seed with 1.0-10.0 % concentration alkali solution, 85-100 % concentration water solution or 0.1-5.0 % concentration alcohol water solution of alkali at 20-50 deg.c to extract lignin compltetely, filtering, scalding the filter cake with 95-100 deg.c water for 5-15 min, mixing the filter cake with water at 25-55 deg.c, xylanase and mycoprotein polysaccharide enzyme through stirring, filtering, re-extracting the filter cake, merging filtrate, and drying to obtain linen glue. The present invention has high linen glue extracting efficiency, and the linen glue product has linen glue polysaccharide content over 90 wt%, low protein content and no pollutant.

Description

technical field [0001] The invention relates to a method for extracting linseed gum from linseed. technical background [0002] Flaxseed, commonly known as flax, is widely distributed in Inner Mongolia, Gansu, Xinjiang and other places. Flaxseed contains more chemical components such as flax gum, phytic acid, lignans, protein, fatty acids, phenolic acids, flavonoids, carotene, lecithin and vitamins B, C, E and minerals. [0003] Flaxseed gum contained in flaxseed, also known as flaxseed gum, is a polysaccharide-based chemical component. Flax glue is a kind of natural non-polluting vegetable glue. It is a special additive for green food recognized by the National Green Food Development Center. It has high nutritional content, high viscosity, strong water absorption, easy foaming, good emulsification effect, and has adsorption and detoxification effects on heavy metals. . Flax glue is attached to the epidermis of flaxseed, and the general content is 3%-10%. As a dietary fi...

AI Technical Summary

Problems solved by technology

The disadvantages are: 1. Before the linseed is leached to extract the gum, no effective treatment is carried out, resulting in the extracted flax gum containing pigments such as flavonoids and lignans, which makes the color of the flax gum darker and unstable in nature, directly affecting its quality. It is used in the food industry with higher standards; 2. If the shell and kernel are separated, although the gel extraction rate is increased, it is easy to cause more solid impurities in the glue, which will make the steps such as filtration and centrifugation complicated, time-consuming and inefficient; 3. The method of adding immersion aid (hydrochloric acid or 18-decenoic acid) will also increase the protein content in the product while producing the glue

From the perspective of its drying process, it is not suitable for spray drying production, because sugar and protein are prone to browning at high temperature, resulting in product denaturation, which has adverse effects on product color and viscosity; from the perspective of application prospects, this is not suitable. Bioengineering and pharmaceutical industries that require low protein content

4. The high temperature used in the process of adding the enzyme leaching agent is especially unfavorable for the "active" enzyme, because the enzyme is easily denatured at high temperature

5. The selectivity of flax gum polysaccharide extraction is poor, and the product flax gum contains more components in shell kernels such as protein, lignans, pigments, etc., and the content of flax gum polysaccharides is low; this kind of flax gum is easy to brown

6. Lack of comprehensive utilization considerations, only considering the extraction of rubber, and the high value-added active substances lignans and phytic acid in flaxseed have not been effectively utilized, so the economic added value of its application is low