期刊
MOLECULES
卷 24, 期 21, 页码 -出版社
MDPI
DOI: 10.3390/molecules24213962
关键词
starch-based antifungal coatings; natamycin; methyl-beta-cyclodextrin inclusion complex; postharvest treatments
资金
- Natural Science Foundation of Zhejiang Province [LQ19C200002]
- Key Research and Development Program of Zhejiang Province [2019C02088]
The application of natamycin as a natural fungicide in edible coatings is challenging because of its low aqueous solubility. In this study, the natamycin/methyl-beta-cyclodextrin (N/ME-beta-CD) inclusion complex was fabricated and incorporated into waxy corn starch-based coatings for postharvest treatments. The phase solubility of natamycin in the presence of ME-beta-CD at 293.2 K, 303.2 K, and 313.2 K is determined and used to calculate the process thermodynamic parameters. The N/ME-beta-CD inclusion complex was confirmed and characterized by FTIR and 1H NMR spectroscopy. The results indicated that the inclusion complex was formed and the hydrophobic part (C16-C26) of natamycin might be partially inserted into the cavity of ME-beta-CD form the wide rim. The effects of N/ME-beta-CD incorporated starch-based coatings (N/ME-beta-CD S coatings) on postharvest treatments of cherry tomatoes were evaluated in vivo. The N/ME-beta-CD S coatings could reduce weight loss, delay fruit ripening, and inhibit fruit decay caused by Botrytis cinerea in tomato fruit during storage.
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