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Method for continuously modifying soybean protein isolate based on modified atmosphere assisted low-temperature plasma

A low-temperature plasma and soybean protein isolate technology, which is applied in the field of soybean protein isolate modification, can solve the problems of undiscovered soybean protein isolate, cumbersome treatment process, and long processing time, so as to reduce the protein modification process and improve the modification effect , Reduce the effect of modification process

Active Publication Date: 2022-08-05
NANJING UNIV OF FINANCE & ECONOMICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There have been studies on low-temperature plasma sterilization and preservation of modified atmosphere packaged food, but the research object needs to be packaged first and then treated with low-temperature plasma. Not only the processing process is cumbersome, the processing time is long, and the cost is high, there are certain applications limitation
At present, there is no relevant research report on the continuous modification of soybean protein isolate by controlled atmosphere assisted low temperature plasma

Method used

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  • Method for continuously modifying soybean protein isolate based on modified atmosphere assisted low-temperature plasma
  • Method for continuously modifying soybean protein isolate based on modified atmosphere assisted low-temperature plasma

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The method for continuous modification of soybean protein isolate based on modified atmosphere assisted low-temperature plasma in this embodiment is as follows:

[0029]The soybean protein isolate powder is fed into the dielectric barrier discharge low-temperature plasma generator at a load of 100g / min through a conveyor belt of 20cm / min, and then a certain proportion of nitrogen and oxygen are charged into the generator at a flow rate of 8L / min. Mixed gas with carbon dioxide (volume ratio is 30% O 2 +50%N 2 +20%CO 2 ); low-temperature plasma treats the mixed gas and soybean protein isolate in the generator, the treatment time is 120s, the treatment voltage is 40kV, and the treatment frequency is 75Hz; after the treatment, the gas in the plasma generator is discharged for analysis and treatment , the modified soybean protein isolate powder is sent out and packaged to obtain a modified commercial soybean protein isolate. It has been determined that the soy protein iso...

Embodiment 2

[0031] The soybean protein isolate powder is fed into the dielectric barrier discharge low-temperature plasma generator at a load of 80g / min through a conveyor belt of 40cm / min, and then a certain proportion of nitrogen and oxygen are charged into the generator at a flow rate of 20L / min. Mixed gas with carbon dioxide (volume ratio is 40% O 2 +40%N 2 +20%CO 2 ); low-temperature plasma processes the mixed gas and soybean protein isolate in the generator, the processing time is 180s, the processing voltage is 70kV, and the processing frequency is 90Hz; after the processing, the gas in the plasma generator is discharged for analysis and processing , the modified soybean protein isolate powder is sent out and packaged to obtain a modified commercial soybean protein isolate. It has been determined that the soy protein isolate powder of this embodiment has improved solubility, gelation, emulsifying and emulsifying stability, foaming and foaming stability by 12.6%, 7.7%, and 51.8%, ...

Embodiment 3

[0033] The soybean protein isolate powder was fed into the dielectric barrier discharge low-temperature plasma generator at a load of 30g / min through a conveyor belt of 50cm / min, and then a certain proportion of nitrogen and oxygen were charged into the generator at a flow rate of 15L / min. Mixed gas with carbon dioxide (50% O by volume 2 +30%N 2 +20%CO 2 ); low-temperature plasma processes the mixed gas and soybean protein isolate in the generator, the processing time is 300s, the processing voltage is 110kV, and the processing frequency is 135Hz; after the processing, the gas in the plasma generator is discharged for analysis and processing , the modified soybean protein isolate powder is sent out and packaged to obtain a modified commercial soybean protein isolate. It was determined that the solubility, gelatinity, emulsifying property, emulsifying stability, foaming property and foaming stability of the soybean protein isolate powder of this example were improved by 19.0%...

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Abstract

The invention belongs to the technical field of soybean protein isolate modification, and discloses a method for continuously modifying soybean protein isolate based on modified atmosphere assisted low-temperature plasma. The dielectric barrier discharge low-temperature plasma generator is connected with a conveying pipeline of mixed gas of nitrogen, oxygen and carbon dioxide, and the flow rate and proportion of the mixed gas can be adjusted on line; the soybean protein isolate is continuously conveyed into a low-temperature plasma generator through a conveying belt to be treated, then the treated soybean protein isolate is conveyed out along with the conveying belt and packaged, and the modified soybean protein isolate is obtained. The device can continuously treat the soybean protein isolate, regulates and controls gas components input into the low-temperature plasma processor on line, reduces the modification process of the soybean protein isolate, saves the modification cost, improves the modification efficiency, and facilitates the practical application of the technology of modifying the soybean protein isolate through the low-temperature plasma.

Description

technical field [0001] The invention belongs to the technical field of soybean protein isolate modification, in particular to a method for continuously modifying soybean protein isolate based on controlled atmosphere assisted low-temperature plasma. Background technique [0002] Soy protein isolate is a full-price vegetable protein with a purity of more than 90%. It has comprehensive nutrition and low price, and is one of the ideal substitutes for animal protein. Soy protein isolate is a renewable resource with good biocompatibility, biodegradability and processing properties, and is widely used in food, medicine and cosmetics. The functional properties of soybean protein isolate, such as emulsifying, dissolving, foaming, water-holding, and gelling properties, are closely related to the processing properties of many foods, and have great application potential in the food industry. However, commercial soybean protein isolates are usually prepared by an alkali-soluble acid pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07K1/00A23J3/16A61K8/64A61K47/42A61Q19/00
CPCC07K1/00A23J3/16A61K47/42A61K8/645A61Q19/00A61K2800/10
Inventor 沈飞李琦何学明邢常瑞方勇袁建胡秋辉
Owner NANJING UNIV OF FINANCE & ECONOMICS
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