Expression, characterization, and application potentiality evaluation of recombinant human-like collagen in Pichia pastoris

Author:

Ma Lingling,Liang Xiaolin,Yu Shiqin,Zhou JingwenORCID

Abstract

AbstractCollagen is a biofunctional protein that has been widely used in many fields, including but not limited to biomedical, cosmetics and skin care, food, and novel materials. Recombinant collagen has great potential as an alternative to collagen extracted from animals because it avoids the immune response, and the yield and properties are stable. However, challenges remain in the industrial application of recombinant collagen, including improving the expression yield, reducing the cost of purification for industry and expanding applications. In this study, a cloning and recombination method was used to heterologously express the recombinant human-like collagen (RHLC) in Pichia pastoris GS115 using the pPIC9k expression vector. The RHLC expression titre was 2.33 g/L via a 5-L fermenter, and the purification was completed within 48 h and was 98% pure. The characteristics of RHLC were investigated. Furthermore, potential applications for RHLC were explored, such as basal collagen sponge preparation, forming films with chitosan and production of collagen hydrolysed peptides. RHLC has various potential applications due to its triple helical structure, thermostability, good biocompatibility and film-forming ability. Graphical Abstract

Funder

Natural Science Foundation of Jiangsu Province

National Natural Science Foundation of China

Publisher

Springer Science and Business Media LLC

Subject

Renewable Energy, Sustainability and the Environment,Biomedical Engineering,Food Science,Biotechnology

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