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http://dx.doi.org/10.9713/kcer.2022.60.3.386

Collagen Extraction Using Supercritical CO2 from Animal-Derived Waste Tissue  

No, Seong-Rae (School of Energy, Materials and Chemical Engineering, Korea University of Technology & Education)
Shin, Yong-Woo (School of Energy, Materials and Chemical Engineering, Korea University of Technology & Education)
You, Seong-sik (School of Energy, Materials and Chemical Engineering, Korea University of Technology & Education)
Publication Information
Korean Chemical Engineering Research / v.60, no.3, 2022 , pp. 386-391 More about this Journal
Abstract
This study is about a technique for obtaining collagen by extracting fat by treating collagen-containing liposuction effluent in the presence of supercritical fluid. Using a supercritical solvent, a collagen extract could be obtained from animal-derived fat in a short time (about 6 hours), and about 2-3% of collagen by mass compared to the raw material could be obtained. The presence of collagen in the extract obtained by supercritical extraction was confirmed by SDS-PAGE, and it was confirmed that it was type 1 collagen having a relatively large molecular weight. In addition, the growth factors of IGF-1, bFGF, VEGF and NGF were analyzed to find out which growth factors were present in the collagen obtained by supercritical extraction, and it was found that these growth factors were contained in the extract. There was no significant difference in DNA content per mg of sample before and after supercritical treatment. Further in-depth studies are likely to be needed on decellularization technology using the supercritical process. In conclusion, the extracellular matrix obtained through the solvent extraction process using a supercritical fluid contains growth factors above a certain amount even after decellularization and removal of fat, so that it was found that not only biocompatibility is greatly increased, but also tissue regeneration can be rapidly induced.
Keywords
Supercritical; Collagen; Extracellular matrix; Extraction; Growth factor;
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