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Linseed dehulling method

A flaxseed, grading and screening technology, applied in the fields of shelling, pod removal, food science, etc., can solve the needs of deep processing of backward agricultural products, the difficulty of peeling and separation, and the low technical maturity, and achieve good nutritional value and equipment. Simple and easy operation, high separation of shell and kernel

Active Publication Date: 2015-11-18
INNER MONGOLIA JIUDING FOOD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the flaxseed skin is hard, thick and smooth, flat in shape, and the proportion of kernels is equal, so it is difficult to peel and separate
At present, there are few researches on linseed shelling technology at home and abroad, and the technology maturity is not high, which is far behind the demand for deep processing of agricultural products
[0004] Thereby, the present linseed shelling method still needs to be improved

Method used

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  • Linseed dehulling method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Embodiment 1 process optimization experiment

[0043] 1. Aperture optimization experiment of vibrating screen in classification screening pretreatment:

[0044] In the pretreatment of grading and screening, flax seeds need to pass through a vibrating sieve, and the linseed is divided into three grades: large, medium and small according to the particle size.

[0045] Therefore, this experiment set up 16 groups of experimental groups, each group of flaxseed 90g, passed through a vibrating sieve respectively, and then screened the undersize of the first-level sieve through the second-level sieve, and screened the first-level and second-level sieves respectively. Weighed, the results are as follows:

[0046] Primary sieve aperture (mm)

4

3.5

3

2.5

Amount of sieve (g)

5.6

10.5

28.9

36.8

[0047] 2) After the secondary sieve, the amount of sieve material is as follows:

[0048] Secondary sieve aperture

2mm...

Embodiment 2

[0056] According to the flaxseed shelling method of the present invention, carry out flaxseed shelling according to the following steps:

[0057] (1) Grading and screening pretreatment:

[0058] Utilize the first vibrating sieve of 3mm aperture to carry out the first classification and screening of flaxseed, so that obtain the first sieve and the first undersize respectively, wherein the first sieve is the first grade flaxseed; Utilize 2mm aperture The second vibrating sieve carries out the second classification and screening of the first undersize, so as to obtain the second oversize and the second undersize respectively, wherein the second oversize is second-grade linseed, and the second oversize is linseed. The undersieve is the third grade flaxseed.

[0059] Then, for each grade of flaxseed, the following steps are carried out in sequence:

[0060] (2) Sectional microwave drying treatment:

[0061] Put the linseed into the microwave dryer, keep the power of the microwav...

Embodiment 3

[0072] From these aspects of linseed kernel color and luster, drying temperature, kernel husk content rate, husk kernel content rate, husk kernel separation rate, linseed damage rate and α-linolenic acid content, the present invention shown in embodiment 2 The linseed dehulling method is compared with the traditional impact method, and the results are shown in the table below:

[0073]

[0074] Wherein, the above-mentioned traditional percussion method process is carried out by adopting the optimal parameters selected in the following documents:

[0075] Liang Xia et al. Research on key technologies of flaxseed peeling [J]. Agricultural Products Processing Journal, 2007, (1): 18-19, 39. The full text of which is incorporated herein by reference.

[0076] From the results shown in the table above, it can be seen that:

[0077] When using the method of the present invention to dehull the linseed, the color of the linseed kernel, the drying temperature, the percentage of shel...

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Abstract

The present invention provides a linseed dehulling method which comprises steps that: conducting grading sieving pretreatment on linseeds according to the grain size so as to obtain three grades of linseeds; for each grade of linseeds, separately performing stepwise microwave drying treatment, impact dehulling treatment, color sorting and grading gravity screening treatment so as to realize hull-kernel detaching. The method can be used to effectively conduct linseed dehulling, and the method has characteristics of simple and easy operation equipment, low cost, high efficiency, high hull-kernel detaching rate and low broken rate during hull process, low hull containing rate in kernels and low kernel containing rate in hulls, good color of obtained linseed kernels, high content of alpha linolenic acid, high nutritional value, and environment-friendly and pollution-free properties.

Description

technical field [0001] The invention belongs to the technical field of separating shells and kernels of oil plants, and in particular relates to a method for shelling linseeds. Background technique [0002] The oil content of flaxseed is between 25% and 35%, and the content of α-linolenic acid in linseed oil is between 45% and 65%. At the same time, flaxseed contains 10%-30% protein, which can be used for animal feed; while flaxseed shell contains about 8% flaxseed gum, which can be used as a food additive and also has a health effect on the human body. The ingredients - lignans. [0003] However, the flaxseed skin is hard, thick and smooth, flat in shape, and the proportion of kernels is equal, so it is more difficult to peel and separate. At present, there are few researches on linseed shelling technology at home and abroad, and the technology maturity is not high, which is far behind the demand for deep processing of agricultural products. [0004] Thereby, the present...

Claims

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Application Information

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IPC IPC(8): A23N5/00
Inventor 王瑞军邱星
Owner INNER MONGOLIA JIUDING FOOD
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