scholarly journals Effect of high intensity ultrasound on the structure and solubility of soy protein isolate-pectin complex

2021 ◽  
pp. 105808
Author(s):  
Ning Wang ◽  
Xiaonan Zhou ◽  
Weining Wang ◽  
Liqi Wang ◽  
Lianzhou Jiang ◽  
...  
Keyword(s):  
Soy Protein ◽  
High Intensity ◽  
Soy Protein Isolate ◽  
Protein Isolate ◽  
High Intensity Ultrasound

scholarly journals High-Intensity Ultrasound Treatment on Soy Protein after Selectively Proteolyzing Glycinin Component: Physical, Structural, and Aggregation Properties

Foods ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 839
Author(s):  
Wenjie Xia ◽  
Siyi Pan ◽  
Zhe Cheng ◽  
Yan Tian ◽  
Xingjian Huang
Keyword(s):  
Soy Protein ◽  
High Intensity ◽  
Disulfide Bonds ◽  
Hydrophobic Interactions ◽  
Early Stage ◽  
Soy Protein Isolate ◽  
Protein Isolate ◽  
High Intensity Ultrasound ◽  
Gelling Properties ◽  
Novel Method

In this study, a novel method called selective proteolysis was applied to the glycinin component of soy protein isolate (SPI), and a degraded glycinin hydrolysate (DGH) was obtained. The effects of high-intensity ultrasound (HIU) treatment (20 kHz at 400 W, 0, 5, 20, and 40 min) on the physical, structural, and aggregation properties of DGH were investigated with the aim to reveal the influence of the selectively hydrolyzing glycinin component on the HIU treatment of soy protein. The effects of HIU on DGH and a control SPI (CSPI) were both time-dependent. HIU induced the formation of soluble aggregates in both samples at an early stage, while it dissociated these newly formed aggregates after a longer duration. Selectively hydrolyzing glycinin contributed to the soluble aggregation by exposing the compact protein structure and producing small protein fractions. The larger extent of hydrophobic interactions and disulfide bonds imparted a higher stability to the soluble protein aggregates formed in DGH. As a result, DGH displayed more ordered secondary structures, a higher solubility, and better gelling properties after the HIU treatment, especially at 20 min. The results of this study will be beneficial to the scientific community as well as industrial application.

Effect of high intensity ultrasound on transglutaminase-catalyzed soy protein isolate cold set gel

2016 ◽  
Vol 29 ◽  
pp. 380-387 ◽  
Author(s):  
Peipei Zhang ◽  
Tan Hu ◽  
Shaolong Feng ◽  
Qi Xu ◽  
Ting Zheng ◽  
...  
Keyword(s):  
Soy Protein ◽  
High Intensity ◽  
Soy Protein Isolate ◽  
Protein Isolate ◽  
High Intensity Ultrasound

Transglutaminase-induced gelation properties of soy protein isolate and wheat gluten mixtures with high intensity ultrasonic pretreatment

2016 ◽  
Vol 31 ◽  
pp. 590-597 ◽  
Author(s):  
Xin-Sheng Qin ◽  
Shui-Zhong Luo ◽  
Jing Cai ◽  
Xi-Yang Zhong ◽  
Shao-Tong Jiang ◽  
...  
Keyword(s):  
Soy Protein ◽  
High Intensity ◽  
Wheat Gluten ◽  
Soy Protein Isolate ◽  
Protein Isolate ◽  
Ultrasonic Pretreatment

scholarly journals Rheology and Water Absorption Properties of Alginate–Soy Protein Composites

Polymers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1807
Author(s):  
Estefanía Álvarez-Castillo ◽  
José Manuel Aguilar ◽  
Carlos Bengoechea ◽  
María Luisa López-Castejón ◽  
Antonio Guerrero
Keyword(s):  
Soy Protein ◽  
Water Solubility ◽  
Divalent Cations ◽  
Low Cost ◽  
Soy Protein Isolate ◽  
Protein Isolate ◽  
Guluronic Acid ◽  
Wide Range ◽  
Anionic Polysaccharides ◽  
Porous Matrices

Composite materials based on proteins and carbohydrates normally offer improved water solubility, biodegradability, and biocompatibility, which make them attractive for a wide range of applications. Soy protein isolate (SPI) has shown superabsorbent properties that are useful in fields such as agriculture. Alginate salts (ALG) are linear anionic polysaccharides obtained at a low cost from brown algae, displaying a good enough biocompatibility to be considered for medical applications. As alginates are quite hydrophilic, the exchange of ions from guluronic acid present in its molecular structure with divalent cations, particularly Ca2+, may induce its gelation, which would inhibit its solubilization in water. Both biopolymers SPI and ALG were used to produce composites through injection moulding using glycerol (Gly) as a plasticizer. Different biopolymer/plasticizer ratios were employed, and the SPI/ALG ratio within the biopolymer fraction was also varied. Furthermore, composites were immersed in different CaCl2 solutions to inhibit the amount of soluble matter loss and to enhance the mechanical properties of the resulting porous matrices. The main goal of the present work was the development and characterization of green porous matrices with inhibited solubility thanks to the gelation of alginate.

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