Preheating and High-Intensity Ultrasound Synergistically Affect the Physicochemical, Structural, and Gelling Properties of Myofibrillar Protein from Wooden Breast

2021 ◽  
Author(s):  
Ke Wang ◽  
Yan Li ◽  
Xin Luo ◽  
Yimin Zhang ◽  
Jingxin Sun ◽  
...  
Keyword(s):  
High Intensity ◽  
Myofibrillar Protein ◽  
High Intensity Ultrasound ◽  
Gelling Properties ◽  
Wooden Breast

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.

scholarly journals Non pharmacological high-intensity ultrasound treatment of human dermal fibroblasts to accelerate wound healing

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jeong Yu Lee ◽  
Dae-Jin Min ◽  
Wanil Kim ◽  
Bum-Ho Bin ◽  
Kyuhan Kim ◽  
...  
Keyword(s):  
Wound Healing ◽  
High Intensity ◽  
Mapk Pathway ◽  
Dermal Fibroblasts ◽  
Ultrasound Treatment ◽  
Type I ◽  
Human Dermal Fibroblasts ◽  
Short Term ◽  
High Intensity Ultrasound ◽  
Extracellular Matrix Components

AbstractInspired by the effectiveness of low-intensity ultrasound on tissue regeneration, we investigated the potential effect of short-term high-intensity ultrasound treatment for acceleration of wound healing in an in vitro wound model and dermal equivalent, both comprising human dermal fibroblasts. Short-term ultrasound of various amplitudes significantly increased the proliferation and migration of fibroblasts and subsequently increased the production of the extracellular matrix components fibronectin and collagen type I, both of which are important for wound healing and are secreted by fibroblasts. In addition, ultrasound treatment increased the contraction of a fibroblast-embedded three-dimensional collagen matrix, and the effect was synergistically increased in the presence of TGF-β. RNA-sequencing and bioinformatics analyses revealed changes in gene expression and p38 and ERK1/2 MAPK pathway activation in the ultrasound-stimulated fibroblasts. Our findings suggest that ultrasound as a mechanical stimulus can activate human dermal fibroblasts. Therefore, the activation of fibroblasts using ultrasound may improve the healing of various types of wounds and increase skin regeneration.

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