Synergistic effect of nano zinc oxide and tea tree essential oil on the properties of soluble soybean polysaccharide films.

Autor: Liu J; School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, Henan 450001, PR China. Electronic address: liujie@zzu.edu.cn., Wang Y; School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, Henan 450001, PR China., Liu Y; School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, Henan 450001, PR China., Shao S; School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, Henan 450001, PR China., Zheng X; School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, Henan 450001, PR China., Tang K; School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, Henan 450001, PR China. Electronic address: kytang@zzu.edu.cn.
Jazyk: angličtina
Zdroj: International journal of biological macromolecules [Int J Biol Macromol] 2023 Jun 01; Vol. 239, pp. 124361. Date of Electronic Publication: 2023 Apr 05.
DOI: 10.1016/j.ijbiomac.2023.124361
Abstrakt: Soluble soybean polysaccharide (SSPS)-based composite films with the addition of nano zinc oxide (nZnO, 5 wt% based on SSPS) and tea tree essential oil (TTEO, 10 wt% based on SSPS) were developed by the casting method. The effect of the combination of nZnO and TTEO on the microstructure and physical, mechanical and functional properties of SSPS films was evaluated. The results showed that the SSPS/TTEO/nZnO film exhibited enhanced water vapor barrier properties, thermal stability, water resistance, surface wettability, and total color difference, and almost completely prevented ultraviolet light transmission. The addition of TTEO and nZnO had no significant effect on the tensile strength and elongation at break of the films, but decreased the percentage of light transmittance of the films at 600 nm from 85.5 % to 10.1 %. The DPPH radical scavenging activity of the films significantly increased from 46.8 % (SSPS) to 67.7 % (SSPS/TTEO/nZnO) due to the presence of TTEO. Scanning electron microscopy analysis indicated that nZnO and TTEO were evenly dispersed in the SSPS matrix. The synergistic effect of nZnO and TTEO endowed the SSPS film with excellent antibacterial activity against E. coli and S. aureus, suggesting that the SSPS/TTEO/nZnO film could be a promising material for active packaging applications.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2023 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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