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Preparation method of soyabean protein modified product

A technology for soybean protein and modified products, applied in the field of preparation of soybean protein modified products, can solve the problems of destroying the biocompatibility of soybean protein, environmental pollution and the like

Inactive Publication Date: 2018-04-20
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the currently used cross-linking modifications use chemical cross-linking agents. Although they can improve the mechanical properties of soybean protein materials, the use of chemical cross-linking agents will more or less pollute the environment and destroy the biocompatibility of soybean protein. sex

Method used

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  • Preparation method of soyabean protein modified product
  • Preparation method of soyabean protein modified product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Dissolve and disperse 5g of soybean protein SPI in 500ml of water, heat to 50°C, stir for 40min, add 0.5g of SbQ and stir for 1h in the dark, then add 0.1g of NaBH 4 Reduction, dialysis and lyophilization to obtain SPI-g-SbQ.

Embodiment 2

[0013] Prepare SPI-g-SbQ into a dilute solution of 0.1mg / ml, observe its morphology with a transmission electron microscope, as shown in the attached figure 1 shown. The results show that SPI-g-SbQ has a spherical morphology, and some darker areas are derived from the benzene ring in the SbQ structure.

Embodiment 3

[0015] Prepare SPI-g-SbQ into a 0.1mg / ml dilute solution, irradiate the solution with ultraviolet light for different time, and observe the spectrum of the solution under different light time with uv-vis spectrum, see attached figure 2 . The results showed that the absorption peak at 340nm gradually weakened as the illumination time continued to prolong.

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PUM

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Abstract

The invention discloses a preparation method of a soyabean protein modified product. Soyabean protein SPI is used as a raw material; amido in the structure is used for taking a Schiff base reaction with aldehyde groups in SbQ; the modified product SPI-g-SbQ is prepared; the SbQ groups in the modified product can be crosslinked under the ultraviolet irradiation; the use of a traditional chemical cross-linking agent can be replaced; a new material is provided for soyabean protein application.

Description

technical field [0001] The invention belongs to the technical field of natural macromolecules and photosensitivity, and in particular relates to a preparation method of a modified soybean protein. Background technique [0002] In recent years, more and more attention has been paid to environmentally friendly biopolymer materials made of natural polymers. Soybean is a crop with strong adaptability. It contains a large amount of storage protein, and its content can be as high as 40%. It is a high-quality and cheap protein resource. Soybean protein isolate is an important part of soybean. Protein and glycinin are the main components of soybean protein isolate, which contain a large number of active groups, such as amine groups, carboxyl groups, etc., and have many important functional properties, so that soybean protein isolate has good film-forming properties. In recent years, the scientific community has done a lot of work on the modification of soybean protein. Common modif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08H1/02
CPCC08H1/02
Inventor 白绘宇傅梦婕
Owner JIANGNAN UNIV
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