Performance of antibacterial and mouldproof packaging film of compound p-hydroxybenzoate

Authors

LI Yan, College of Mechanical Engineering,Jiangnan University, Wuxi, Jiangsu 214122, China
TANG Yali, College of Mechanical Engineering,Jiangnan University, Wuxi, Jiangsu 214122, China; Key Laboratory of Food Advanced Manufacturing Equipment and Technology in Jiangsu Province, Wuxi, Jiangsu 214122, China
LU Lixin, College of Mechanical Engineering,Jiangnan University, Wuxi, Jiangsu 214122, China; Key Laboratory of Food Advanced Manufacturing Equipment and Technology in Jiangsu Province, Wuxi, Jiangsu 214122, China
QIU Xiaolin, College of Mechanical Engineering,Jiangnan University, Wuxi, Jiangsu 214122, China; Key Laboratory of Food Advanced Manufacturing Equipment and Technology in Jiangsu Province, Wuxi, Jiangsu 214122, China
WANG Jun, College of Mechanical Engineering,Jiangnan University, Wuxi, Jiangsu 214122, China; Key Laboratory of Food Advanced Manufacturing Equipment and Technology in Jiangsu Province, Wuxi, Jiangsu 214122, China

Abstract

The two compounds of methyl p-hydroxybenzoate and propyl p-hydroxybenzoate were added into LDPE to make antibacterial masterbatch. The masterbatch were prepared for different formula antimicrobial films using of extrusion casting methods, and then the antibacterial and mildew resistance properties, as well as the mechanical and barrier properties of the films were studied. Methyl p-hydroxybenzoate and propyl p-hydroxybenzoate were found showing synergistic antibacterial effect. When the ratio was 23, the antibacterial rate reached 99.67% (E.coli) and 99.59% (Staphylococcus aureus) respectively, and the mold mildew grade reached Level 1, with a strong anti-bacterial and anti-mildew effect. The addition of p-hydroxybenzoate had little effect on the mechanical properties, which was slightly better than that of LDPE at the ratio of 23, and the water permeability decreased by 34.73%, with the air permeability decreased by 5.32% and barrier performance improved. When the ratio of the two was 23, the antibacterial and mouldproof LDPE film had the best application effect, and it was expected to be used in the inner layer of low water activity food package.

Publication Date

11-28-2017

First Page

109

Last Page

113

DOI

10.13652/j.issn.1003-5788.2017.11.023

Recommended Citation

Yan, LI; Yali, TANG; Lixin, LU; Xiaolin, QIU; and Jun, WANG (2017) "Performance of antibacterial and mouldproof packaging film of compound p-hydroxybenzoate," Food and Machinery: Vol. 33: Iss. 11, Article 23.
DOI: 10.13652/j.issn.1003-5788.2017.11.023
Available at: https://www.ifoodmm.cn/journal/vol33/iss11/23

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