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Method for removing flaxseed gum from flaxseed meal by extrusion and expanding

A technology of extruding and extruding linseed meal, which is applied in the forming or processing of animal feed, animal feed, animal feed, etc., can solve the problems of incomplete fermentation of linseed meal, incomplete growth of microorganisms, and influence on deep processing of linseed meal, etc., to achieve The effect of improving primary removal rate, low cost, and improving nutrient digestibility

Inactive Publication Date: 2011-07-20
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the existence of some anti-nutritional factors in flax meal, including flax glue, it affects the absorption of nutrients in the feed, thereby reducing the nutritional value of flax meal as animal feed
The presence of linseed gum will also affect the deep processing of linseed meal. For example, microbial fermentation of linseed meal will prevent the microorganisms from growing completely due to the presence of linseed gum, and the fermentation of linseed meal cannot be fully carried out.

Method used

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  • Method for removing flaxseed gum from flaxseed meal by extrusion and expanding
  • Method for removing flaxseed gum from flaxseed meal by extrusion and expanding
  • Method for removing flaxseed gum from flaxseed meal by extrusion and expanding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 1. Flax meal is crushed or crushed

[0021] After cleaning and removing 3 kg of flaky linseed meal raw material, it is pulverized or rolled into a powder with a particle size in the range of 20-120 mesh by a grease grinder.

[0022] 2. Adding corn flour to linseed meal powder and adjusting moisture content

[0023] Take 2 kg of crushed linseed meal, add 5% corn flour (according to the total mass percentage of the mixture), and mix well. The moisture content of the mixture of linseed meal and corn flour is adjusted through a water mist spraying device, while spraying, it is continuously stirred, and the moisture content is adjusted according to the mass ratio of 35.1%.

[0024] 3. Extrusion and expansion treatment

[0025] The mixture of linseed meal and corn flour with adjusted moisture content is extruded and extruded by a twin-screw extruder (SLG67-18.5, Beijing Shilian Machinery Factory). The extruding temperature is 80°C and the screw speed is 180 rpm min, the fe...

Embodiment 2

[0031] 1. Flax meal is crushed or crushed

[0032] After cleaning and removing 3 kg of flaky linseed meal raw material, it is pulverized or rolled into a powder with a particle size in the range of 20-120 mesh by a grease grinder.

[0033] 2. Adding corn flour to linseed meal powder and adjusting moisture content

[0034] Take 2 kg of crushed linseed meal, add 10% corn flour (according to the total mass percentage of the mixture), and mix well. The moisture content of the mixture of linseed meal and corn flour is adjusted through a water mist spraying device, while spraying, it is continuously stirred, and the moisture content is adjusted according to the mass ratio of 35.1%.

[0035] 3. Extrusion and expansion treatment

[0036] The mixture of linseed meal and corn flour with adjusted moisture content is extruded and extruded by a twin-screw extruder (SLG67-18.5, Beijing Shilian Machinery Factory). The extruding temperature is 100°C and the screw speed is 140 rpm min, the ...

Embodiment 3

[0042] 1. Flax meal is crushed or crushed

[0043] After cleaning and removing 3 kg of flaky linseed meal raw material, it is pulverized or rolled into a powder with a particle size in the range of 20-120 mesh by a grease grinder.

[0044] 2. Adding corn flour to linseed meal powder and adjusting moisture content

[0045] Take 2 kg of crushed linseed meal, add 15% corn flour (according to the total mass percentage of the mixture), and mix well. The moisture content of the mixture of linseed meal and corn flour is adjusted through a water mist spraying device, while spraying, it is continuously stirred, and the moisture content is adjusted according to the mass ratio of 31.8%.

[0046] 3. Extrusion and expansion treatment

[0047] The mixture of linseed meal and corn flour with adjusted moisture content is extruded and extruded by a twin-screw extruder (SLG67-18.5, Beijing Shilian Machinery Factory). The extruding temperature is 120°C and the screw speed is 100 rpm min, the ...

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Abstract

The invention discloses a method for removing flaxseed gum from flaxseed meal by extrusion and expanding, which belongs to the technical field of agricultural products processing. The method uses waste residual flaxseed meal produced during flaxseed oil production in a flaxseed oil processing plant as a raw martial, and removes flaxseed gum in the flaxseed meal, which may impact on digestion and absorption of animals, by extrusion and expanding technology. The specific process comprises the steps of removing flaxseed gum from flaxseed meal at an extrusion temperature of 80-160 DEG C, a rotation speed of 60-80rpm and a feeding speed of 30-35 kg / h, and the one-step removal rate of flaxseed gum from flaxseed meal is 52.0-83.2%. The process proposed in the invention can realize gum removal and aging at the same time and can effectively improve the feed efficiency of flaxseed meal; and has the advantages simple equipment, convenient operation, low cost, rapidness, high profit, etc.

Description

technical field [0001] The invention relates to a method for removing linseed glue in linseed meal by extrusion technology, and belongs to the technical field of agricultural product processing. Background technique [0002] Flaxseed, also known as flaxseed, is the seed of flax, a plant in the flax family. The world's flaxseed production has increased rapidly in the past decade, and China has become the world's second largest flaxseed producer after Canada, and China's flaxseed production accounts for 20% of the world's total. Among them, linseed oil is rich in about 73% polyunsaturated fatty acids and 18% monounsaturated fatty acids, so it has become a high-quality source of edible oil. This will inevitably produce a large amount of defatted meal. Flax meal is rich in nutrients such as protein, lignan, soluble fiber, minerals and vitamins. It is an important resource that can be used. If it is not recycled, it will not only cause waste of resources, but also increase Due ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23K1/14A23K10/37A23K40/00
CPCY02P60/87
Inventor 李栋吴敏汪立君毛志怀
Owner CHINA AGRI UNIV
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