Effect of Ultrasound Treatment on Properties of Soy Proteins Film

2011 ◽  
Vol 117-119 ◽  
pp. 513-516 ◽  
Author(s):  
Yang Sun ◽  
Chun Yu Sun ◽  
Guang Chen
Keyword(s):  
Molecular Structure ◽  
Mechanical Properties ◽  
Soy Protein ◽  
Soy Protein Isolate ◽  
Protein Isolate ◽  
Ultrasound Treatment ◽  
Soy Proteins ◽  
Protein Films ◽  
Protein Film ◽  
Film Forming

Soy protein isolate(SPI) based edible film as matrix materials have been prepared using the casting techniques. Ultrasound treatment (UT) could represent an interesting strategy for improving Soy protein film appearance. Different UT exposure times were applied to film-forming dispersion. The aim of this work was to investigate the effect of ultrasound treatment on Soy protein films at molecular structure and mechanical properties. The results showed that the structure of SPI film became more homogeneous and the properties has been improved largely after treated by ultrasonic, with the output power 1000 w for 16 s the tensile strength was the best; for 12 s, elongation reach the peak.

scholarly journals Ultrasonic-modified montmorillonite uniting ethylene glycol diglycidyl ether to reinforce protein-based composite films

e-Polymers ◽  
2021 ◽  
Vol 21 (1) ◽  
pp. 433-442
Author(s):  
Hua He ◽  
Rui-jing Jia ◽  
Kai-qiang Dong ◽  
Jia-wen Huang ◽  
Zhi-yong Qin
Keyword(s):  
Ethylene Glycol ◽  
Soy Protein ◽  
Soy Protein Isolate ◽  
Composite Films ◽  
Barrier Properties ◽  
Protein Isolate ◽  
Diglycidyl Ether ◽  
X Ray Diffraction ◽  
Protein Film ◽  
Modified Montmorillonite

Abstract A novel biodegradable protein-based material (UMSPIE) that consists of natural polymer soy protein isolate (SPI), ultrasonic-modified montmorillonite (UMMT), and ethylene glycol diglycidyl ether (EGDE) was produced by solution casting. Fourier infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetric analysis (TG), and scanning electron microscopy (SEM) were used to characterize the chemical structure and micro-morphologies of as-synthesized protein-based composite films. The results showed that the interlayer structure of MMT was destroyed by ultrasonic treatment, and the hydrogen bonding between SPI chains and the ultrasound-treated MMT plates was enhanced. The synergistic effect of UMMT and EGDE on SPI molecules made the network structure of the UMSPIE film denser. In addition, the mechanical and barrier properties of the as-synthesized films were explored. Compared with pure soy protein film, the tensile strength of the UMSPIE film has an increase of 266.82% (increasing from 4.4 to 16.14 MPa). From the above, the modified strategy of layered silicates filling combining crosslinking agents is considered as an effective method to improve the functional properties of bio-based polymer composites.

scholarly journals Conjugation of soy protein isolate (SPI) with pectin by ultrasound treatment

2020 ◽  
Vol 108 ◽  
pp. 106056 ◽  
Author(s):  
Xiaobin Ma ◽  
Furong Hou ◽  
Huanhuan Zhao ◽  
Danli Wang ◽  
Weijun Chen ◽  
...  
Keyword(s):  
Soy Protein ◽  
Soy Protein Isolate ◽  
Protein Isolate ◽  
Ultrasound Treatment

A multifunctional carbon nanotube reinforced nanocomposite modified via soy protein isolate: A study on dispersion, electrical and mechanical properties

Carbon ◽  
2020 ◽  
Vol 161 ◽  
pp. 350-358 ◽  
Author(s):  
Xianrong Huang ◽  
Renfu Li ◽  
Lijian Zeng ◽  
Xueling Li ◽  
Zhaojun Xi ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotube ◽  
Soy Protein ◽  
Soy Protein Isolate ◽  
Protein Isolate

scholarly journals Mechanical Properties and Biodegradability of the Kenaf/Soy Protein Isolate-PVA Biocomposites

2015 ◽  
Vol 2015 ◽  
pp. 1-11 ◽  
Author(s):  
Jong Sung Won ◽  
Ji Eun Lee ◽  
Da Young Jin ◽  
Seung Goo Lee
Keyword(s):  
Mechanical Properties ◽  
Soy Protein ◽  
Low Cost ◽  
Soy Protein Isolate ◽  
Natural Fibers ◽  
Protein Isolate ◽  
Poly Vinyl Alcohol ◽  
Cross Linking ◽  
Adhesion Properties ◽  
The Cross

The effective utilization of original natural fibers as indispensable components in natural resins for developing novel, low-cost, eco-friendly biocomposites is one of the most rapidly emerging fields of research in fiber-reinforced composite. The objective of this study is to investigate the interfacial adhesion properties, water absorption, biodegradation properties, and mechanical properties of the kenaf/soy protein isolate- (SPI-) PVA composite. Experimental results showed that 20 wt% poly (vinyl alcohol) (PVA) and 8 wt% glutaraldehyde (GA) created optimum conditions for the consolidation of the composite. The increase of interfacial shear strength enhanced the composites flexural and tensile strength of the kenaf/SPI-PVA composite. The kenaf/SPI-PVA mechanical properties of the composite also increased with the content of cross-linking agent. Results of the biodegradation test indicated that the degradation time of the composite could be controlled by the cross-linking agent. The degradation rate of the kenaf/SPI-PVA composite with the cross-linking agent was lower than that of the composite without the cross-linking agent.

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