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Issue 48, 2019
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A novel antimicrobial composite: ZnAl-hydrotalcite with p-hydroxybenzoic acid intercalation and its possible application as a food packaging material

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Abstract

Microbial contamination poses a great threat to people's life and health. In this paper, p-hydroxybenzoic acid (PHBA) was intercalated into layered double hydroxides (LDHs, with Zn : Al molar ratio = 4 : 1); the former possesses the antifungal effect for Candida albicans, and the latter shows the best antibacterial effect for Staphylococcus aureus. The sample was characterized by XRD, FT-IR spectroscopy and TG-DTA. Its sustained-release property was studied by a release experiment. Finally, ZnAl-PHBA-LDH (Zn : Al = 4 : 1) was dispersed into the solution of gelatin to obtain a food packaging film; antimicrobial experiments showed that the gelatin film of ZnAl-PHBA-LDH (Zn : Al = 4 : 1) (ZPL4) could effectively inhibit the activity of Staphylococcus aureus and Candida albicans. The experimental results confirm the application of ZPL4 in the field of food antimicrobial packaging.

Graphical abstract: A novel antimicrobial composite: ZnAl-hydrotalcite with p-hydroxybenzoic acid intercalation and its possible application as a food packaging material

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Publication details

The article was received on 30 Jul 2019, accepted on 19 Nov 2019 and first published on 19 Nov 2019


Article type: Paper
DOI: 10.1039/C9NJ03943K
New J. Chem., 2019,43, 19408-19414

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    A novel antimicrobial composite: ZnAl-hydrotalcite with p-hydroxybenzoic acid intercalation and its possible application as a food packaging material

    H. Cheng, X. Gao, K. Zhang, X. Wang, W. Zhou, S. Li, X. Cao and D. Yan, New J. Chem., 2019, 43, 19408
    DOI: 10.1039/C9NJ03943K

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