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Method for modifying soy protein concentrate

A technology for concentrated soybean protein and soybean protein concentrate, which is applied in the fields of protein food processing, protein food ingredients, food science, etc., can solve problems such as the modification process of concentrated soybean protein that has not yet been seen, and achieve good taste, passivate enzyme activity, fast and precise control

Active Publication Date: 2018-08-17
ENZYMECODE BIOTECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] So far, there is no research on the modification process of concentrated soybean protein using microchannel pulverization technology and microchannel reactor enzymatic hydrolysis technology

Method used

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  • Method for modifying soy protein concentrate
  • Method for modifying soy protein concentrate
  • Method for modifying soy protein concentrate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Example 1: Preparation of soybean protein concentrate by ultrafine pulverization in microchannel pulverizer and enzymatic hydrolysis in microchannel reactor

[0036] (1) Device:

[0037] 1) Conventional universal pulverizer

[0038] 2) According to Example 1 of patent CN201710044089.5, a microchannel pulverizer is produced, which includes a microchannel pulverizer and a high-pressure pump.

[0039] 3) The microchannel reactor device adopts a high-pressure microchannel reactor, including a mixing module, a reaction module, a high temperature module and a low temperature module. The length of the microchannel is determined according to the flow rate and the reaction residence time. The diameter is 0.3mm, and the heat exchange medium is heat transfer oil.

[0040] (2) Preparation of Enzymolysis Soybean Protein Concentrate:

[0041] A-Preparation of ultrafine pulverized soybean protein concentrate:

[0042] 2kg soybean protein concentrate (protein content 70%) was pulve...

Embodiment 2

[0053] Embodiment 2: a comparative example corresponding to Embodiment 1.

[0054] (1) Device:

[0055] 1) Conventional universal pulverizer.

[0056] 2) 20L glass kettle type jacketed reaction kettle, mechanical stirring, heat transfer medium is heat transfer oil.

[0057] (2) Preparation of Enzymolysis Soybean Protein Concentrate:

[0058] A- Conventional crushed soy protein concentrate preparation:

[0059] 2kg soybean protein concentrate (70% protein content) was pulverized for 30min with a conventional universal pulverizer (rotating speed 6000rpm), and the particle size D90 of the obtained pulverized soybean protein concentrate was 165.34um. 165.34um) was added with 8kg of water, and the pH value was adjusted to 7 under the condition of full stirring.

[0060] B-enzymatic hydrolysis reaction:

[0061] Pour the above-mentioned concentrated soybean protein slurry into a 20L glass kettle-type jacketed reactor, start the mechanical stirring, the stirring speed is 70rpm, ...

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Abstract

The invention relates to a method for modifying soy protein concentrate. The method comprises the following steps: preparing a soy protein concentrate solution, preparing an enzyme solution, pumping the soy protein concentrate solution into a micro-channel pulverizer, conducting superfine pulverizing, separately pumping the pulverized material and the enzyme solution into a mixing module of a micro-channel reactor, allowing a mixing reaction system to enter a reaction module for reaction, then allowing the reaction system to flow through a high-temperature module to passivate the activity of cellulase and protease, then allowing the obtained reaction system to flow through a low-temperature module, and finally allowing the reaction system to flows out of the micro-channel reactor so as toobtain a modified soy protein concentrate solution. The invention also relates to the application of the soy protein concentrate prepared by the method to the field of food and nutrition health care.The method has the advantages of high reaction speed, high yield and good product quality.

Description

technical field [0001] The invention belongs to the field of soybean protein processing, and in particular relates to a modification method and an application thereof for enzymatically treating concentrated soybean protein by using microchannel pulverization technology and a microchannel reactor to improve its solubility and flavor characteristics. Background technique [0002] Soybean protein concentrate is a high-quality vegetable protein obtained by removing most of the non-protein soluble components from low-temperature soybean meal through extraction, precipitation, and crushing processes. The concentrated protein produced by the alcohol extraction method has a high protein content, which can reach about 70%. However, due to the use of a large amount of ethanol in the process, the molecular structure of the protein is greatly changed, and the nitrogen solubility index (NSI) value is low, which affects its application in the food industry. In addition to protein, soybea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23J3/34
CPCA23J3/346
Inventor 袁永红郭旭杨贺赵旭升
Owner ENZYMECODE BIOTECHNOLOGY CO LTD
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