Method for extracting beta-hyskon, starch, protein and grease from oat

A technology of glucan and protein, which is applied in the field of protein and oil, extraction of β-glucan and starch, can solve the problems of environmental pollution, low production efficiency and high cost, and achieve easy source of raw materials, simple method and reduction of waste of resources Effect

Inactive Publication Date: 2010-02-17
INST OF AGRO FOOD SCI & TECH CHINESE ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If starch, protein and oil are only used as by-products in the extraction process of oat β-glucan and not fully utilized, not o

Method used

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  • Method for extracting beta-hyskon, starch, protein and grease from oat

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0034] Example 1. The wet production process of co-extraction of various components (β-glucan, starch, protein and oil) in oats

[0035] 1. Preparation

[0036] 1) Raw material pretreatment: clean the commercially available naked oat grains to remove impurities and barley oats; impregnate and moisturize the oat grains to control the moisture content of the oat grains to 18% (mass percentage). The moisture content of the oat grains is tested according to GB / T 21305-2007 The conventional method for the determination of moisture in cereals and cereal products is carried out; then the enzymes in the dampened oat grains are inactivated by microwave, and the microwave power is controlled at 10W / g, 80s; the wetting is performed with a roller mill The oat grains after enzyme inactivation are rolled into slices, and the thickness of the rolled slices is controlled to be 0.3mm to obtain oatmeal.

[0037] 2) Degreasing: Send the oatmeal to the oil extraction device, and extract 3 times with N...

Example Embodiment

[0066] Example 2. Wet production process for co-extraction of various components (β-glucan, starch, protein and oil) in oats

[0067] 1. Preparation

[0068] 1) Raw material pretreatment: clean up the commercially available naked oat grains to remove impurities and barley oats; impregnate and moisturize the oat grains to control the moisture content of the oat grains to 17% (mass percentage); then use the microwave to moisten the grains The enzymes in the oat grains were inactivated, and the microwave power was controlled to 8W / g for 100s; the moistened and enzyme-inactivated oat grains were rolled with a roller mill to control the thickness of the rolled slices to 0.4mm to obtain oatmeal.

[0069] 2) Degreasing: Send the oatmeal to the grease extraction device, extract 3 times with No. 4 solvent, the extraction temperature is controlled at 25.0℃, the pressure is 0.6MPa, and the supernatant (containing grease) and precipitate (including defatted oatmeal) are collected;

[0070] The me...

Example Embodiment

[0090] Example 3. Wet production process for co-extraction of various components (β-glucan, starch, protein and oil) in oats

[0091] 1. Preparation

[0092] 1) Raw material pretreatment: clean up the commercially available naked oat grains to remove impurities and barley oats; impregnate and moisturize the oat grains to control the moisture content of the oat grains to 16% (mass percentage); then use the microwave to moisten the grains The enzymes in the oat grains were inactivated, and the microwave power was controlled at 12W / g for 60s; the moistened and enzyme-inactivated oat grains were rolled with a roller mill, and the thickness of the rolled slices was controlled to be 0.5mm to obtain oatmeal.

[0093] 2) Degreasing: Send the oatmeal to the oil extraction device, extract 3 times with No. 4 solvent, the extraction temperature is controlled at 20.0℃, the pressure is 0.5MPa, and the supernatant (containing grease) and precipitate (including defatted oatmeal) are collected;

[009...

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Abstract

The invention discloses a method for extracting beta-hyskon, starch, protein and grease, comprising the following steps: (1) extracting oat to be extracted by a grease extracting solvent, and respectively collecting a solvent phase and a solid phase; obtaining the grease if the solvent phase is collected, and obtaining degreased oat if the solid phase is collected; (2) soaking the degreased oat; (3) smashing the degreased oat soaked in the step 2 into slurry, sieving the slurry with 150-200 meshes, and respectively collecting minus sieves and plus sieves; obtaining the starch if the minus sieves are collected; (4) extracting the plus sieves, and collecting a clear solution to obtain an extracting solution; and (5) carrying out isoelectric precipitation on the extracting solution; collecting deposits to obtain the protein, and collecting the clear solution to obtain the beta-hyskon. By adopting the method, the beta-hyskon, the starch, the protein and the grease can be obtained at the same time, the possibility for high value-added transformation of the oat is provided, the sufficient utilization of byproducts (the starch, the protein and the grease) is realized, and the waste of resources is reduced.

Description

technical field [0001] The invention relates to a method for extracting β-glucan, starch, protein and oil from oat. Background technique [0002] Oat, as a miscellaneous grain crop, has been paid more and more attention in recent years, which is due to the awareness of the health function of oat at home and abroad. The functions of oats in reducing blood fat and preventing cardiovascular and cerebrovascular diseases have been recognized worldwide, and the primary functional factor is considered to be the soluble dietary fiber-β-glucan rich in oats. β-glucan is a linear polysaccharide formed by connecting D-glucose through β-(1→3) and β-(1→4) glycosidic bonds. , high viscosity, high water holding capacity and other hydrosol characteristics, in recent years, it has been developed and applied in the fields of health care products, food, daily necessities and other products. The content of β-glucan in oats is between 3-5%, and most of them are distributed in the cortex tissue....

Claims

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Application Information

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IPC IPC(8): C08B37/02C08B30/00C11B1/10C07K14/415C07K1/30C07K1/14
Inventor 周素梅王强王安娜吴广枫路长喜林伟静
Owner INST OF AGRO FOOD SCI & TECH CHINESE ACADEMY OF AGRI SCI
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