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Effect of ultrasound assisted extraction on the physicochemical and functional properties of collagen from soft-shelled turtle calipash

文献类型: 外文期刊

作者: Zou, Ye 1 ; Wang, Li 2 ; Cai, Panpan 3 ; Li, Pengpeng 1 ; Zhang, Muhan 1 ; Sun, Zhilan 1 ; Sun, Chong 1 ; Xu, Weimin 1 ; Wan 1 ;

作者机构: 1.Jiangsu Acad Agr Sci, Inst Agr Prod Proc, Nanjing 210014, Jiangsu, Peoples R China

2.Yangzhou Univ, Coll Food Sci & Engn, Yangzhou 225127, Jiangsu, Peoples R China

3.Nanjing Normal Univ, Ginling Coll, Nanjing 210024, Jiangsu, Peoples R China

4.Nanjing Agr Univ, Jiangsu Collaborat Innovat Ctr Meat Prod & Proc, Qual & Safety Control, Nanjing 210095, Jiangsu, Peoples R China

关键词: Soft-shelled turtle calipash collagen;Ultrasound assisted extraction;Physicochemical properties

期刊名称:INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES ( 影响因子:6.953; 五年影响因子:6.737 )

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收录情况: SCI

摘要: The aim of the present study was to evaluate the physicochemical and functional properties of acid soluble collagen by ultrasound assisted extraction (UASC) from calipash of soft-shelled turtle (Pelodiscus sinensis). The results showed the collagen content was increased by 16.3% in UASC over the collagen from the conventional extraction (ASC). Both ASC and UASC contained a moderate amount of imino acid (197 and 216 residues/1000 residues, respectively) and hydrophobit amino acid (353 and 391 residues/1000 residues, respectively) in amino acid composition. Fourier transform infrared (FTIR) spectroscopy and Xray diffraction (XRD) analyses confirmed that the ultrasound treatment did not disrupt the triple-stranded helical structures in UASC. UASC had higher thermal stability compared with ASC by viscosity and differential scanning calorimetry (DSC) measurements, therefore, UASC might have the advantage to be used. In dynamic elastic behavior measurement, UASC showed a larger elasticity than ASC. With a mild modification by ultrasound, UASC had superior functional properties, to ASC, including water/oil absorption capacity, water-holding capacity, emulsifying properties and foaming properties. These results suggested that UASC from the soft-shelled turtle calipash had a potential to be used widely in food, medicine, cosmetics and biomedical materials. (C) 2017 Elsevier B.V. All rights reserved.

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