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Comprehensive flax seed processing method

A comprehensive processing and linseed technology, which is applied to the preparation method of peptides, chemical instruments and methods, fat oil/fat production, etc., can solve the problems of low processing technology level, long drying time, and low benefit of comprehensive processing and utilization, and achieve Effects of improving flavor and oxidation stability, and improving oxidation stability quality

Active Publication Date: 2013-04-10
INST OF OIL CROPS RES CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) Due to the existence of a class of toxic compounds called cyanogenic glycosides in flaxseed, and the content is relatively high, direct consumption without detoxification is likely to cause poisoning, but the cyanogenic glycosides in the linseed oil obtained by pressing are very low, so flaxseed in my country At present, it is mainly used for oil extraction. Whether it is direct cold pressing or hot pressing after conventional steaming and frying, because most of the oil is removed from the flaxseed cake after pressing, almost all the cyanogenic glycosides remain in the cake, resulting in most of the cake. Meal can only be used as animal feed protein or fertilizer, causing serious waste of resources
[0005] (2) Extraction of linseed gum from linseed is another processing application of linseed; at present, linseed gum with high purity can be obtained by wet extraction of whole seeds in water in my country, but after extraction, linseed is dried in a conventional oven. Long time, high energy consumption, oil extraction from flaxseed after drying, the quality of the obtained oil deteriorates
[0008] To sum up, the main problems in my country's linseed processing are low processing technology, single processed products, low destruction rate of toxic substances in the processing process, poor product quality, low comprehensive processing and utilization benefits, and low processing value-added rate, etc. question
These factors have hindered the further development and popularization of flaxseed functional food and food raw materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A kind of linseed comprehensive processing method, it comprises the following steps:

[0036] 1) Cleaning and removing impurities: choose yellow flaxseeds purchased in the market, and use winnowing to remove dust, screen to remove impurities, specific gravity to remove stones and magnetic separation to remove iron to process the flaxseeds to obtain clean flaxseeds with a mass content of 0.05wt% of impurities ;

[0037] 2) Degumming: Weigh 75g of linseed each time and use a CLS·JNM-1 experimental emery roller rice mill (manufactured by the Chengdu Grain Storage Research Institute of the State Grain Reserve Bureau) to dry grind and degumming for 200s, collect the linseed rubber powder and pass it for 80 seconds. Sieve, the yield of linseed gum is 7.08wt% [Note: yield = (mass of linseed gum powder / mass of linseed) × 100%], the viscosity of linseed gum measured according to the national standard GB 2731-2005 viscosity measurement method is 4200mPa .s; degummed flaxseeds ar...

Embodiment 2

[0044] A kind of linseed comprehensive processing method, it comprises the following steps:

[0045] 1) Cleaning and removing impurities: choose brown flaxseeds purchased in the market, and use winnowing to remove dust, screen to remove impurities, specific gravity to remove stones and magnetic separation to remove iron to process the flaxseeds to obtain clean flaxseeds with a mass content of 0.01 wt%;

[0046] 2) Degumming: Use a linseed degumming machine [such as: Chinese patent 201220192311.9] for dry degumming, repeatedly grind 10 times to collect all the ground rubber powder and pass through a 40-mesh sieve to obtain linseed gum products (linseed coarse rubber products). 6.16%; the degummed linseed is passed through a 20-mesh sieve to remove the crushed kernels and rubber powder to obtain degummed linseed (dry degummed linseed), and the moisture content of the degummed linseed is 10.5wt%;

[0047] 3) Microwave heating: Take 5kg of degummed flaxseed and spread it on the c...

Embodiment 3

[0053] A kind of linseed comprehensive processing method, it comprises the following steps:

[0054] 1) Cleaning and removing impurities: choose the yellow flaxseeds purchased in the market, and use winnowing to remove dust, screen to remove impurities, specific gravity to remove stones and magnetic separation to remove iron to process the flaxseeds to obtain clean flaxseeds with a mass content of 0.02 wt%;

[0055] 2) Degumming: use water immersion method to extract flaxseed gum, the mass ratio of material liquid (flaxseed, liquid is water) is 1:10, water temperature is 90°C, 200r / min is stirred and soaked for 3h, and the glue is collected by 20 mesh filtration liquid, repeated three times, the combined filtrate was concentrated, precipitated, spray-dried, pulverized, and sieved to obtain the linseed gum product, and the yield of the linseed gum product was 10.28%; the degummed linseed was drained and dripped to obtain the degummed linseed (wet degummed linseed), its moistur...

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Abstract

The invention relates to a flax seed processing method, which is characterized by comprising the following steps: 1) cleaning up impurities; 2) degumming: degumming flax seeds with a drying method or a water-soaking wet method; 3) microwave heating: causing the final temperature of the degummed flax seeds to achieve 120-185 DEG C, and immediately cooking down when listening a sound of seed blasting and / or smelling roasted smell; 4) tempering and expressing oil: regulating water content of flax seeds heated by microwaves to 7-15 weight percent, entering an oil press to press, and obtaining flax seed oil and flax seed cakes; and 5) pressing flax and separating dreg skin from seeds: grinding the flax seed cakes obtained during oil pressing through a grinder, separating coarser skin through a 40-60 meshes of screen to obtain flax seed protein powder and flax seed skin powder. According to the method, the high-efficiency utilization of flax seed resources can be promoted, various flax seed processed products are obtained, and the comprehensive processing benefit of flax seeds is effectively increased. The popularization of flax seed functional food can be impelled, and the national comprehensive health level is enhanced.

Description

technical field [0001] The invention relates to a method for processing linseed, which belongs to the technical field of agricultural product processing. Background technique [0002] Flaxseed is a special oil plant produced in the cold plateau regions of Northwest and Northeast my country, rich in oil and α-linolenic acid, flax lignans (1wt%~4wt%), flaxseed gum (8wt%~14wt%) , linseed dietary fiber (about 27wt%) and other bioactive functional ingredients. These active ingredients have obvious health care and pharmacological activities. Modern medical research has proved that flaxseed has many physiological and pharmacological activities such as regulating blood lipids, regulating blood sugar, anti-cancer, anti-allergic, anti-aging, improving memory and skin barrier function. Flaxseed It is a natural functional food raw material with comprehensive processing, development and utilization value and application potential. [0003] Current status and existing problems of flaxsee...

Claims

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Application Information

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IPC IPC(8): C08B37/00C08H8/00C11B1/04C11B1/06C07K1/14
Inventor 黄庆德杨金娥黄凤洪许继取邓乾春李文林刘昌盛郭萍梅杨湄
Owner INST OF OIL CROPS RES CHINESE ACAD OF AGRI SCI
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