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Alkali type sterilization method of soybean dietary fibers

A soybean dietary fiber, alkaline technology, applied in the field of alkaline sterilization of soybean dietary fiber, can solve the problems of affecting the sterilization effect, increasing the production cost, and not being able to meet the continuous production of the workshop, and achieve good sterilization effect and low sterilization cost.

Inactive Publication Date: 2018-11-16
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] An alkaline sterilization method for soybean dietary fiber, which is carried out sequentially according to the 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 12.0-12.5 with food-grade sodium hydroxide, 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] An alkaline sterilization method for soybean dietary fiber, which is carried out sequentially according to the 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 12.5-13.0 with food-grade potassium hydroxide and calcium hydroxide 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] An alkaline sterilization method for soybean dietary fiber, which is carried out sequentially according to the 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 sodium hydroxide and sodium carbonate to adjust the pH value of the bean dregs in the tempering tank to above 12.0, 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 exc...

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Abstract

The present invention discloses an alkali type sterilization method of soybean dietary fibers and belongs to the technical field of biological sterilization. Soybean meal is extracted and separated toproduce wet soybean residues; water is added; the material is transported to a conditioning tank; pH value is adjusted to 12.0 or more with a food grade alkali; at the same time, after the material is stirred in the tank for 1-2 hours, then the pH value is adjusted to about 7.0 with a food grade acid; and dehydrating and drying processes are conducted. The method by using the food grade alkali toadjust the pH value is low in sterilization cost, good in sterilization effects, and convenient and easy for operation. The method for fiber sterilization is simple and quick.

Description

technical field [0001] The invention belongs to the technical field of biological sterilization, and relates to an alkaline sterilization method of 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...

Claims

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Application Information

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IPC IPC(8): A23L3/358
CPCA23L3/358
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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