TitleCellulose nanomaterials emulsion coatings for controlling physiological activity, modifying surface morphology, and enhancing storability of postharvest bananas (Musa acuminate).
Publication TypeJournal Article
Year of Publication2017
AuthorsDeng, Z, Jung, J, Simonsen, J, Zhao, Y
JournalFood Chem
Volume232
Pagination359-368
Date Published2017 Oct 01
ISSN0308-8146
KeywordsCellulose, Excipients, Food Storage, Fruit, Musa, Nanostructures
Abstract

Cellulose nanomaterials (CNs)-incorporated emulsion coatings with improved moisture barrier, wettability and surface adhesion onto fruit surfaces were developed for controlling postharvest physiological activity and enhancing storability of bananas during ambient storage. Cellulose nanofiber (CNF)-based emulsion coating (CNFC: 0.3% CNF/1% oleic acid/1% sucrose ester fatty acid (w/w wet base)) had low contact angle, high spread coefficient onto banana surfaces, and lower surface tension (ST, 25.4mN/m) than the critical ST (35.2mN/m) of banana peels, and exhibited good wettability onto banana surfaces. CNFC coating delayed the ethylene biosynthesis pathway and reduced ethylene and CO production, thus delaying fruit ripening. As the result, CNFC coating minimized chlorophyll degradation, weight loss, and firmness of bananas while ensuring the properly fruit ripening during 10d of ambient storage. This study demonstrated the effectiveness of CNF based emulsion coatings for improving the storability of postharvest bananas.

DOI10.1016/j.foodchem.2017.04.028
Alternate JournalFood Chem
PubMed ID28490085