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Updated: Aug 26, 2026
Surface Functionalization of Metal-Organic Frameworks for Improved Moisture Resistance
Published on: September 5, 2018
Engineering antimicrobial and anti-photooxidative films via a cyclodextrin metal-organic frameworks encapsulation
Liying Yang1, Long Chen1, Jiaming Deng1
1College of Chemistry and Chemical Engineering, Engineering Research Center of Dairy Products Quality and Safety Control Technology, Ministry of Education, Inner Mongolia University, Hohhot 010021, PR China.
Abstract:
Microbial spoilage and UV-induced photooxidation severely compromise the quality and shelf life of traditional dairy products. To address these challenges, a multifunctional antimicrobial and anti-photooxidative film was engineered by incorporating cinnamaldehyde-loaded cyclodextrin metal-organic frameworks into a polymeric matrix. The resulting film exhibited UV-shielding performance, with a 96.38% increase in opacity, and reduced water vapor permeability by 42.72%. It also showed broad-spectrum antimicrobial activity against the fungi Mucor racemosus and Penicillium roqueforti, as well as the bacteria Staphylococcus aureus and Escherichia coli. When used to package Mongolian cheese, the film significantly extended its shelf life. It effectively suppressed microbial proliferation, mitigated lipid photooxidation, maintained a low peroxide value of 0.018 g/100 g, and reduced dehydration-induced structural hardening and protein degradation. This multifunctional film provides a promising strategy for developing next-generation active food packaging.
