Chitosan-based melatonin bilayer coating for maintaining quality of fresh-cut products

Hangyue Zhao, Lei Wang, Tarun Belwal, Yunhong Jiang, Dong Li, Yanqun Xu, Zisheng Luo, Li Li

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

This work was designed to develop the chitosan-based melatonin layer-by-layer assembly (CMLLA) via the inclusion method. The structural characterizations and interaction present in CMLLA were investigated by the scanning electron microscope (SEM), X-ray diffraction (XRD) and Fourier Transform-Infrared spectroscopy (FTIR). The ratio of chitosan (CH) to carboxymethylcellulose (CMC) greatly influenced the mechanical properties, including the tensile strength, moisture content and color performance. Results showed that both antioxidant and antimicrobial properties of CMLLA were enhanced with the addition of melatonin (MLT). Furthermore, it was demonstrated that the CMLLA with 1.2 % (w/v) CH, 0.8 % (w/v) CMC and 50 mg/L MLT better contributed to the delay of chlorophyll degradation and the maintenance of shelf-life quality. Results from this study might open up new insights into the approaches of quality improvement of postharvest fresh products by incorporating the natural antioxidant compounds into natural polymers.

Original languageEnglish
Article number115973
Number of pages13
JournalCarbohydrate Polymers
Volume235
Early online date11 Feb 2020
DOIs
Publication statusPublished - 1 May 2020
Externally publishedYes

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