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Article

Effect of Potassium Sorbate and Ultrasonic Treatment on the Properties of Fish Scale Collagen/Polyvinyl Alcohol Composite Film

by 1,†, 1,†, 1, 1 and 1,2,3,*
1
College of Food Science, Sichuan Agricultural University, Yaan 625014, China
2
School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
3
California NanoSystems Institute, University of California, Los Angeles, CA 90095, USA
*
Author to whom correspondence should be addressed.
These authors contributed equally to the work.
Molecules 2019, 24(13), 2363; https://doi.org/10.3390/molecules24132363
Received: 10 June 2019 / Revised: 23 June 2019 / Accepted: 26 June 2019 / Published: 26 June 2019
Composite films containing different amounts of potassium sorbate (KS) were prepared by using fish scale collagen (Col) and polyvinyl alcohol (PVA). Fourier transform infrared spectroscopy (FTIR), light transmittance, mechanical, water vapor transmission rate (WVTR), and the antibacterial properties of the composite films were analyzed. The results showed that the addition of Col significantly reduced the light transmittance of the composite film, but KS had no significant effect on the light transmission. The tensile strength decreased first and then increased with the addition of KS, while the WVTR increased first and then decreased. The composite film exhibited a certain degree of antibacterial properties against E. coli and S. aureus. In addition, we found that ultrasonic treatment reduced the WVTR, and also improved tensile strength and elongation at break of the composite films, but had no significant effect on other properties. The KS/Col/PVA films have the potential to be used as antimicrobial food packaging. View Full-Text
Keywords: potassium sorbate; fish scale collagen; polyvinyl alcohol; ultrasonic treatment; composite films; antibacterial activity potassium sorbate; fish scale collagen; polyvinyl alcohol; ultrasonic treatment; composite films; antibacterial activity
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MDPI and ACS Style

Liang, X.; Feng, S.; Ahmed, S.; Qin, W.; Liu, Y. Effect of Potassium Sorbate and Ultrasonic Treatment on the Properties of Fish Scale Collagen/Polyvinyl Alcohol Composite Film. Molecules 2019, 24, 2363. https://doi.org/10.3390/molecules24132363

AMA Style

Liang X, Feng S, Ahmed S, Qin W, Liu Y. Effect of Potassium Sorbate and Ultrasonic Treatment on the Properties of Fish Scale Collagen/Polyvinyl Alcohol Composite Film. Molecules. 2019; 24(13):2363. https://doi.org/10.3390/molecules24132363

Chicago/Turabian Style

Liang, Xue, Shiyi Feng, Saeed Ahmed, Wen Qin, and Yaowen Liu. 2019. "Effect of Potassium Sorbate and Ultrasonic Treatment on the Properties of Fish Scale Collagen/Polyvinyl Alcohol Composite Film" Molecules 24, no. 13: 2363. https://doi.org/10.3390/molecules24132363

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