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Preparation and properties of antibacterial food‐preservative paper incorporating ceramic pigments.

Authors :
Lu, Dongyan
Ning, Yuping
Liu, Xiangyao
Ren, Shixue
Ni, Baoxin
Song, Yang
Li, Jian
Li, Zhiqiang
Liu, Wenbo
Source :
Packaging Technology & Science; Apr2024, Vol. 37 Issue 4, p273-282, 10p
Publication Year :
2024

Abstract

Ag@ceramic composite papermaking pigment was prepared by coating silver onto red ceramic powder using the electroless plating method. SEM and XRD showed that the ceramic pigments have a porous crystalline structure and that silver particles had been successfully loaded onto the surface and into the pores of the Ag@ceramic. Untreated ceramic pigment and Ag@ceramic pigment were incorporated into paper sheets by coating, filling and filling‐coating. Using spinach as an example, the ability of the different papers to preserve food was then evaluated. Four indicators were used to assess the preservative effect of the papers: inhibition of growth of Staphylococcus aureus and Escherichia coli, weight loss of the spinach and retention of vitamin C and chlorophyll in the spinach. Although the ceramic preservative paper has no antibacterial properties, it reduced weight loss from the spinach and increased retention of vitamin C and chlorophyll. The antibacterial preservative papers inhibited the growth of E. coli and S. aureus by >99%, and because of their additional antibacterial activity, these papers preserved the spinach more effectively. The experimental results showed that the antibacterial food‐preservative paper incorporating ceramic pigments had great potential in food packing applications. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
08943214
Volume :
37
Issue :
4
Database :
Complementary Index
Journal :
Packaging Technology & Science
Publication Type :
Academic Journal
Accession number :
175918722
Full Text :
https://doi.org/10.1002/pts.2797