摘要
The effects of ultrasound power on extraction kinetic model,and physicochemical and structural characteristics of collagen from chicken lung were studied.Ultrasound power caused a significant increase in extraction rate and equilibrium concentration,with the maximum extraction yield(31.25%)at 150 W.The experimental data were consistent with the predicted ones in this empirical equation,in which the percentage error differences was 0.026–4.159%.Besides,ultrasound treatment did not affect their triple-helical structure.The thermal stability of pepsin-soluble collagen by ultrasound pretreatment(UPSC)was higher,due to the higher imino acid content(20.76%).UPSC also exhibited better solubility and fibril forming capacity.Overall,the kinetic model of UPSC from chicken lung could serve the purpose of obtaining collagen,which displayed a potential alternative source to mammal collagens for application in food,biomaterials and biomedical fields.
基金
supported by National Natural Science Foundation of China(31901612)
China agriculture research system(CARS-41)
Natural Science Foundation Program of Jiangsu Province(BK20180300)
Agricultural science and technology innovation fund projects of Jiangsu Province(CX(18)1006)
Fundamental Research Funds for Jiangsu Academy of Agricultural Sciences(ZX(18)3009).
