One-pot co-crystallized hexanal-loaded ZIF-8/quaternized chitosan film for temperature-responsive ethylene inhibition and climacteric fruit preservation.

Autor: Jiang F; School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China., Liang Y; School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China., Liu L; School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China., Zhang Y; School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China., Deng Y; School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China., Wei F; School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China., Xu C; School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China., Fu L; School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China., Lin B; School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China. Electronic address: lbf@gxu.edu.cn.
Jazyk: angličtina
Zdroj: International journal of biological macromolecules [Int J Biol Macromol] 2024 Apr; Vol. 265 (Pt 1), pp. 130798. Date of Electronic Publication: 2024 Mar 11.
DOI: 10.1016/j.ijbiomac.2024.130798
Abstrakt: Controlling ethylene production and microbial infection are key factors to prolong the shelf life of climacteric fruit. Herein, a nanocomposite film, hexanal-loaded ZIF-8/CS (HZCF) with "nano-barrier" structure, was developed by a one-pot co-crystallized of ZIF-8 in situ growth on quaternized chitosan (CS) and encapsulation of hexanal into ZIF-8 via microporous adsorption. The resultant film realized the temperature responsive release of hexanal via the steric hindrance and hierarchical pore structure as "nano-barrier", which can inhibit ethylene production in climacteric fruit on demand. Based on this, the maximum ethylene inhibition rate of HZCF was up to 52.6 %. Meanwhile, the film exhibits excellent antibacterial, mechanical, UV resistance and water retention properties, by virtue of the functional synergy between ZIF-8 and CS. Contributed to the multifunctional features, HZCF prolonged the shelf life of banana and mango for at least 16 days, which is 8 days longer than that of control fruit. More strikingly, HZCF is washable and biodegradable, which is expected to replace non-degradable plastic film. Thus, this study provides a convenient novel approach to simplify the encapsulation of active molecule on metal-organic frameworks (MOFs), develops a packaging material for high-efficient freshness preservation, and helps to alleviate the survival crisis caused by food waste.
Competing Interests: Declaration of competing interest All co-authors agree to the submission of this manuscript and declare that there have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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