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Acid-type sterilization method for soybean dietary fibers

A soybean dietary fiber and acid technology, applied in the field of biological sterilization, can solve the problems of affecting the sterilization effect, increasing the production cost, unable to meet the continuous production in the workshop, etc., and achieving the effect of good sterilization effect and low sterilization cost.

Inactive Publication Date: 2018-11-13
山东嘉华生物科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the sterilization method of soybean dietary fiber generally adopts microwave sterilization and moist heat sterilization. Microwave sterilization generally adopts tunnel microwave chamber, which has uneven sterilization effect. The moisture content of the material has a great influence on the sterilization effect, and the thickness of the material entering the tunnel chamber is also extremely large. In addition, the microwave sterilization equipment is not suitable for long-term operation and cannot meet the needs of continuous production in the workshop; due to the strong water absorption of soybean dietary fiber, the wet heat sterilization method needs to add a lot of water, and then dry it after sterilization, which requires a lot of heat. , which greatly increases the production cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A kind of acid type sterilization method of soybean dietary fiber, carries out successively according to following steps:

[0017] Step 1: In the production process of soybean protein isolate, the soybean meal is extracted and separated to produce wet bean dregs, which are then transported to the conditioning tank after adding water;

[0018] Step 2: adjust the pH value of the bean dregs in the tempering tank in step 1 to 1.8-2.0 with food-grade hydrochloric acid, and then stir in the tank for 2 hours;

[0019] Step 3: Return the pH value of the bean dregs stirred in Step 2 to about 7.0 with food-grade acid;

[0020] Step 4: Dehydrating and drying the bean dregs obtained in Step 3 to obtain soybean dietary fiber products.

Embodiment 2

[0022] A kind of acid type sterilization method of soybean dietary fiber, carries out successively according to following steps:

[0023] Step 1: In the production process of soybean protein isolate, the soybean meal is extracted and separated to produce wet bean dregs, which are then transported to the conditioning tank after adding water;

[0024] Step 2: adjust the pH value of the bean dregs in the tempering tank to 1.0-1.2 with food-grade sulfuric acid and citric acid in step 1, and then stir in the tank for 1.5 hours;

[0025] Step 3: Return the pH value of the bean dregs stirred in Step 2 to about 7.0 with food-grade acid;

[0026] Step 4: Dehydrating and drying the bean dregs obtained in Step 3 to obtain soybean dietary fiber products.

Embodiment 3

[0028] A kind of acid type sterilization method of soybean dietary fiber, carries out successively according to following steps:

[0029] Step 1: In the production process of soybean protein isolate, the soybean meal is extracted and separated to produce wet bean dregs, which are then transported to the conditioning tank after adding water;

[0030] Step 2: Use food-grade hydrochloric acid to adjust the pH value of the bean dregs in the tempering tank to 1.2-1.5, and at the same time, pass steam to adjust the temperature of the material to about 60°C, and then stir in the tank for 1 hour;

[0031] Step 3: Return the pH value of the bean dregs stirred in Step 2 to about 7.0 with food-grade acid;

[0032] Step 4: Dehydrating and drying the bean dregs obtained in Step 3 to obtain soybean dietary fiber products.

[0033] In the above examples, the total number of bacterial colonies in the soybean dietary fiber product sampled and detected does not exceed 10,000 cfu / g, which can m...

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PUM

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Abstract

The present invention relates to an acid-type sterilization method for soybean dietary fibers, and belongs to the technical field of biological sterilization. The method comprises the following steps:extracting and separating soybean meal to generate wet bean dregs, adding water, conveying the bean dregs to a conditioning tank, adjusting the pH value to 2.0 or below with food-grade alkali while stirring materials in the tank for more than or equal to 1 hour, then returning the pH value to about 7.0 with food-grade acid, and carrying out dehydration and drying procedures. The method performs sterilization by using the food-grade acid to adjust the pH value, so that the method is low in cost, good in sterilization effect and convenient and easy to operate, and provides a simple and rapid method for fiber sterilization.

Description

technical field [0001] The invention belongs to the technical field of biological sterilization, and relates to an acid sterilization method for soybean dietary fiber. Background technique [0002] With the improvement of human living standards, the degree of food refinement is getting higher and higher, and the fiber intake is significantly reduced. Dietary fiber can significantly reduce plasma cholesterol, regulate gastrointestinal, blood sugar and insulin levels and other functions. [0003] During the processing of soybean protein isolate, a large amount of bean dregs by-products will be produced. Due to the high moisture content of bean dregs (about 85%), it is difficult to store, and it often deteriorates due to untimely treatment and produces peculiar smell, which is a major problem for enterprises. . The use of waste bean dregs to produce soybean dietary fiber prolongs the industrial chain of soybean deep processing, turning waste residue into treasure, which can no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L3/3508A23L3/358A23L3/16
CPCA23L3/16A23L3/3508A23L3/358A23V2002/00A23V2250/032A23V2300/24
Inventor 张钊李广庆李翠芳
Owner 山东嘉华生物科技股份有限公司
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