Effect of ultrasound power on extraction kinetic model,and physicochemical and structural characteristics of collagen from chicken lung

查看全文 作　　者：Ye [1]Zou;Heng [1]Yang;Xinxiao [1]Zhang;Pingping [2]Xu;Di [2]Jiang;Muhan [1]Zhang;Weimin [1]Xu;Daoying [1]Wang 机构地区：[1]Institute of Agricultural Products Processing,Jiangsu Academy of Agricultural Sciences,Nanjing 210014,People’s Republic of China;[2]Department of Enterprise Innovation,Jiangsu Science and Technology Development Strategy Research Institute,Nanjing 210042,People’s Republic of China 出　　处：《Food Production, Processing and Nutrition》索引2020年第2卷第1期,共12页 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). 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. 关 键 词：Extraction kinetics Chicken lung Pepsin-soluble collagen Ultrasound pretreatment