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Method and equipment for continuous gradient counterflow extraction for producing soybean concentrate protein

A soybean protein concentrate and extraction technology, which is applied in the fields of protein food ingredients, protein composition of vegetable seeds, food science, etc., can solve the problems of poor color and flavor, emission, and low product yield.

Inactive Publication Date: 2010-09-22
黑龙江双河松嫩大豆生物工程有限责任公司
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  • Application Information

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Problems solved by technology

[0009] After painstaking research, the inventor has invented a new equipment for continuous gradient countercurrent extraction, and a new method for producing soybean protein concentrate by using the equipment and using continuous gradient countercurrent extraction technology. The problem of poor color and flavor of the product and sewage discharge, overcomes the problem of low product yield and high energy consumption in the hexane-ethanol mixed solvent extraction method, and opens up a better prospect for the production and application of soybean protein concentrate and its by-products

Method used

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  • Method and equipment for continuous gradient counterflow extraction for producing soybean concentrate protein
  • Method and equipment for continuous gradient counterflow extraction for producing soybean concentrate protein
  • Method and equipment for continuous gradient counterflow extraction for producing soybean concentrate protein

Examples

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Effect test

Embodiment 1

[0124] 1. The low-temperature defatted soybean meal with a feeding rate of 800kg / h is transported to the raw material storage tank with a bucket elevator. There is a rotary metering and feeding device at the outlet of the lower cone of the storage tank, and the feeding is constant through frequency conversion;

[0125] 2. The material is continuously transported to the prepreg device by the scraper machine, and the material is mixed with the extract obtained in the extraction step, with a volume of 2.5m 3 , the material-solvent ratio of the pre-soaking step is 1:3, the temperature is 50°C, and the pre-soaking time is 15 minutes;

[0126] 3. The wet material corrected by the above-mentioned prepreg is transferred to the above-mentioned double-layer compound continuous extraction device of the present invention together with the extraction solvent, the extraction temperature is 50° C.; the material-solution ratio is 1: 3, and the concentration of the extraction solvent is 65% (vo...

Embodiment 2

[0133] 1. The low-temperature defatted soybean meal is transported to the raw material storage tank by a bucket elevator. There is a rotating metering and feeding device at the outlet of the lower cone of the storage tank. The feeding volume is adjusted to 800kg / h through frequency conversion speed regulation;

[0134] 2. The scraper machine transports the material to the prepreg device, where the material is mixed with the extraction solution at a temperature of 40°C and the prepreg time is 10 minutes, and then directly enters the continuous gradient countercurrent compound extraction device;

[0135] 3. Extract in a continuous gradient countercurrent compound extraction device, the operation method is the same as in Example 1, and the specific extraction conditions are: the extraction time is 210 minutes; the extraction temperature is 40 ° C; the material-solvent ratio is 1: 4, and the solvent concentration is 70%. (volume fraction), the material moisture content after extrac...

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Abstract

The invention discloses a continuous gradient countercurrent extraction method for producing soybean protein concentrate, which takes low-temperature defatted soybean expeller or high-temperature defatted expeller as the raw materials, and ethanol solution as the extraction agent; a multilayer and continuous extraction equipment is adopted for extracting the defatted soybean expeller continuouslywith a completed closure operating technology, and a soybean molasses is obtained from the extraction liquid which is made by the extraction technology. The soybean protein concentrate made by the method of the invention has light white color and pure flavor without salty taste, which can eliminate the anti-nutritional factors, and can be widely used in the food industry, which also is an indispensable nutritional additive in high-grade feed. The soybean molasses production which is made by the method of the invention is the best raw materials for further processing soybean isoflavones, soybean saponins, soybean oligosaccharides and extracting trypsinase inhibitor.

Description

technical field [0001] The invention relates to a method and equipment for producing concentrated soybean protein. Specifically, the present invention relates to a method for producing concentrated soybean protein by adopting continuous gradient countercurrent extraction technology, and a multi-layer compound continuous extraction device dedicated to the method. [0002] The utility model patent application CN200720150336.1 submitted by the applicant on June 14, 2007, the title of the invention is "multi-type continuous extraction device". The entire content is for reference. Background technique [0003] Soybean occupies an extremely important position in the world's agriculture and food industry. With the development of science and technology, people's understanding of soybean is getting deeper and deeper, and the application of soybean protein is becoming more and more extensive. Soy protein products include soybean protein isolate, soybean protein concentrate, defatted ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23J1/14
Inventor 王哲杨学军梁志家关海君陈华滨白志明田娟娟汤永群
Owner 黑龙江双河松嫩大豆生物工程有限责任公司
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