Deodorized soybean protein powder and preparation method thereof

A technology of soybean protein powder and protein slurry, which is applied to the protein composition of vegetable seeds, protein food ingredients, food science, etc., can solve the problems of increasing food risk, reducing product purity, slow dissolution, etc., and achieve improved enzymatic hydrolysis effect , Improve solubility performance, solubility improvement effect

Pending Publication Date: 2022-07-22
XUZHOU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are three common problems with soybean protein powder: first, substances such as soy isoflavones will make soybean protein powder have a certain fishy smell, and in the production process, aldehydes, alcohols, ketones and other substances will be produced due to the oxidation of oil, resulting in bad smell , some consumers cannot accept it; second, soybean protein

Method used

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  • Deodorized soybean protein powder and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A preparation method of deodorized soybean protein powder, the concrete steps are as follows:

[0038] (1) First add 3kg of low-temperature defatted soybean meal to 25kg of water, ultrasonically vibrate, continue to add 0.5kg of phytase and 0.4kg of acid protease, stir and mix to obtain a mixed slurry, aerate enzymatic hydrolysis treatment with oxygen, inactivate enzymes, and centrifuge to get The supernatant was adjusted to pH=4 with food-grade hydrochloric acid to precipitate soybean protein, centrifuged again to get the precipitate, then ultrasonically dispersed the precipitate in 15kg of water, and adjusted pH=7 to obtain a protein slurry with a solid content of 10w.t.%;

[0039] (2) The protein slurry is then subjected to high-voltage pulsed electric field treatment, and then 0.02 kg of glucose and 0.01 kg of yeast extract are added to perform partial Maillard reaction to obtain a pretreated protein solution;

[0040] (3) Finally, the pretreated protein solution is s...

Embodiment 2

[0050] A preparation method of deodorized soybean protein powder, the concrete steps are as follows:

[0051] (1) First add 5kg of low-temperature defatted soybean meal to 30kg of water, ultrasonically vibrate, continue to add 0.6kg of phytase and 0.5kg of acid protease, stir and mix to obtain a mixed slurry, aerate the enzymatic hydrolysis treatment with oxygen, inactivate the enzyme, and extract by centrifugation. The supernatant was adjusted to pH=5 with food-grade hydrochloric acid, and the soybean protein was precipitated, and the precipitate was obtained by centrifugation again. Then, the precipitate was ultrasonically dispersed in 20 kg of water, and adjusted to pH=7 to obtain a protein slurry with a solid content of 12w.t.%;

[0052] (2) The protein slurry is then subjected to high-voltage pulsed electric field treatment, and then 0.03 kg of glucose and 0.02 kg of yeast extract are added to perform partial Maillard reaction to obtain a pretreated protein solution;

[0...

Embodiment 3

[0063] A preparation method of deodorized soybean protein powder, the concrete steps are as follows:

[0064] (1) First add 4kg of low-temperature defatted soybean meal to 28kg of water, ultrasonically vibrate, continue to add 0.55kg of phytase and 0.45kg of acid protease, stir and mix to obtain a mixed slurry, aeration and enzymolysis treatment, inactivate enzymes, and centrifuge to get The supernatant was adjusted to pH=5 with food-grade hydrochloric acid to precipitate soybean protein, centrifuged again to get the precipitate, then ultrasonically dispersed the precipitate in 18kg water, and adjusted pH=7 to obtain a protein slurry with a solid content of 11w.t.%;

[0065] (2) The protein slurry is then subjected to high-voltage pulsed electric field treatment, and then 0.025 kg of glucose and 0.015 kg of yeast extract are added to perform partial Maillard reaction to obtain a pretreated protein solution;

[0066] (3) Finally, the pretreated protein solution is subjected to ...

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Abstract

The preparation method comprises the following steps: by taking low-temperature defatted soybean meal as a raw material, introducing oxygen, carrying out enzymolysis treatment to degrade macromolecular protein, carrying out food-grade acid precipitation to obtain soybean protein, carrying out high-voltage pulsed electric field treatment, adding glucose, ribose and a yeast extract, and carrying out partial Maillard reaction, so as to obtain the deodorized soybean protein powder. And subsequent high-frequency electromagnetic field treatment and atmospheric pressure cold plasma treatment are combined, so that the fishy smell of the obtained soybean protein powder is greatly reduced, and the solubility is good.

Description

technical field [0001] The invention belongs to the technical field of soybean protein powder preparation, in particular to a deodorized soybean protein powder and a preparation method thereof. Background technique [0002] Soybean is a common legume crop with a wide range of cultivation and high economic value. Soybean is rich in protein, the content is between 40% and 50%, and it contains 9 kinds of essential amino acids required by the human body. Soy protein has strong water holding capacity, and eating soy protein can have a satiety effect. It is a good meal replacement food for weight management personnel, and has the effects of lowering blood lipids and preventing osteoporosis. Soy protein is easier to digest and absorb than milk protein and is an ideal food source. [0003] Soy protein powder is a common soybean product. It is easy to store and transport. It can be drunk after mixing with water. The consumption method is simple. However, there are three common pro...

Claims

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Application Information

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IPC IPC(8): A23J1/14
CPCA23J1/148
Inventor 唐仕荣陈尚龙巫永华李超刘恩岐
Owner XUZHOU UNIV OF TECH
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