Preparation technology and preservation mechanism of γ-CD-MOFs biaological packaging film loaded with curcumin

作者：Lixin Kang, Qiufang Liang, Abdul Qayum, Arif S. Rashid, Xiaofeng Ren, Haile Ma · 发表于：Food Chemistry · 年份：2023 · DOI：10.1016/j.foodchem.2023.136142 · 被引用次数：185 · 研究领域：Nanocomposite Films for Food Packaging、Conducting polymers and applications、Curcumin's Biomedical Applications

To prevent food spoilage caused by microbial infection, the development of an environmentally friendly antimicrobial preservation material is crucial. Here, the microporous γ-CD-MOFs was utilized to encapsulate the hydrophobic active substance curcumin, resulting in the preparation of a non-toxic antimicrobial material (Cur-CD-MOFs). The results revealed that curcumin encapsulation in Cur-CD-MOFs occurred primarily in the carbonyl group, benzene ring, and enolic side ring of curcumin. The Cur-CD-MOFs had a 100% bactericidal effect on Escherichia coli and Staphylococcus aureus at 4 h and 8 h, and a strong inhibitory effect on aerial mycelium of Penicillium expansum and Botrytis cinerea. Furthermore, the incorporation of Cur-CD-MOFs improved the Pul/Tre film barrier and mechanical properties. The effectiveness of Cur-CD-MOFs-Pul/Tre in retaining fruit freshness was validated using Centennial Seedless grapes. This study confirmed that Cur-CD-MOFs is a promising antibacterial material, and Cur-CD-MOFs-Pul/Tre will be a potent candidate for food preservation.