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Shi T, Liu H, Song T, Xiong Z, Yuan L, McClements DJ, Jin W, Sun Q, Gao R. Use of l-arginine-assisted ultrasonic treatment to change the molecular and interfacial characteristics of fish myosin and enhance the physical stability of the emulsion. Food Chem 2020; 342:128314. [PMID: 33051101 DOI: 10.1016/j.foodchem.2020.128314] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 10/02/2020] [Accepted: 10/02/2020] [Indexed: 10/23/2022]
Abstract
The effects of l-arginine (Arg)-assisted ultrasonic treatment on the molecular and interfacial characteristics of myosin and emulsifying properties of the emulsion were evaluated to ascertain the underlying mechanism in improving the emulsion stability. Ultrasonication induced the exposure of residues of native myosin, which was increased by the addition of Arg (40 mM). Furthermore, in terms of emulsions containing Arg, the higher the ultrasonication intensity was, the greater the increase in adsorbed protein (from 15.43 ± 0.28% to 50.49 ± 1.65%) and π value, and the decrease in droplet sizes (from 4098 nm to 2324 nm) (P < 0.05). Moreover, the increase in the ordered structures of interfacial myosin induced by Arg and ultrasonication favoured the formation of a protein gelation network. In summary, Arg-assisted ultrasonic treatment improved the stability of the emulsion by inducing the exposure of native myosin and facilitating the formation of ordered structures of interfacial myosin.
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Affiliation(s)
- Tong Shi
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu Province 212013, China
| | - Hui Liu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu Province 212013, China
| | - Teng Song
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu Province 212013, China
| | - Zhiyu Xiong
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu Province 212013, China
| | - Li Yuan
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu Province 212013, China
| | - David Julian McClements
- Department of Food Science, University of Massachusetts Amherst, Amherst, MA 01003, USA; Department of Food Science & Bioengineering, Zhejiang Gongshang University, 18 Xuezheng Street, Hangzhou, Zhejiang 310018, China
| | - Wengang Jin
- Bio-resources Key Laboratory of Shaanxi Province, School of Biological Science and Engineering, Sha'anxi University of Technology, Hanzhong 723001, China
| | - Quancai Sun
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu Province 212013, China
| | - Ruichang Gao
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu Province 212013, China; Bio-resources Key Laboratory of Shaanxi Province, School of Biological Science and Engineering, Sha'anxi University of Technology, Hanzhong 723001, China.
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