Shelf-life of guavas coated with biodegradable starch and cellulose-based films.

Autor: Francisco CB; Postgraduate Program in Biotechnology Applied to Agriculture, Paranaense University, Square Mascarenhas de Moraes, 4282, Zone III, Umuarama, PR 87502-210, Brazil.; Department of Chemistry, State University of Maringa, Av. Colombo, 5790, CEP 87020-900 Maringa, Parana, Brazil., Pellá MG; Department of Chemistry, State University of Maringa, Av. Colombo, 5790, CEP 87020-900 Maringa, Parana, Brazil., Silva OA; Department of Chemistry, State University of Maringa, Av. Colombo, 5790, CEP 87020-900 Maringa, Parana, Brazil., Raimundo KF; Postgraduate Program in Biotechnology Applied to Agriculture, Paranaense University, Square Mascarenhas de Moraes, 4282, Zone III, Umuarama, PR 87502-210, Brazil., Caetano J; Center of Engineering and Exact Sciences, State University of Western Paraná, Street Rua da Faculdade, 645, Jardim Santa Maria, Toledo, PR 85903-000, Brazil., Linde GA; Postgraduate Program in Biotechnology Applied to Agriculture, Paranaense University, Square Mascarenhas de Moraes, 4282, Zone III, Umuarama, PR 87502-210, Brazil., Colauto NB; Postgraduate Program in Biotechnology Applied to Agriculture, Paranaense University, Square Mascarenhas de Moraes, 4282, Zone III, Umuarama, PR 87502-210, Brazil., Dragunski DC; Postgraduate Program in Biotechnology Applied to Agriculture, Paranaense University, Square Mascarenhas de Moraes, 4282, Zone III, Umuarama, PR 87502-210, Brazil.; Center of Engineering and Exact Sciences, State University of Western Paraná, Street Rua da Faculdade, 645, Jardim Santa Maria, Toledo, PR 85903-000, Brazil.. Electronic address: douglas.dragunski@unioeste.br.
Jazyk: angličtina
Zdroj: International journal of biological macromolecules [Int J Biol Macromol] 2020 Jun 01; Vol. 152, pp. 272-279. Date of Electronic Publication: 2020 Feb 24.
DOI: 10.1016/j.ijbiomac.2020.02.249
Abstrakt: Guava is a perishable fruit susceptible to post-harvest losses. So, the development of biodegradable films based on acetylated cassava starch (ACS) and hydroxyethyl cellulose (HEC) could be an alternative to increase guavas (Psidium guajava L.) shelf life. Films were characterized by solubility, opacity, water vapor transport, and thickness. Mass loss, texture, titratable acidity, soluble solids, vitamin C, and skin color of the fruits were analyzed. The films with higher HEC concentration were more transparent and hygroscopic. Guava coated with 75% HEC and 25% ACS or 100% HEC films increased firmness, maintained green skin color and reduced ripeness, lasting for 13 days, ensuring that the ACS and HEC based films can increase guavas shelf life, besides decrease environmental impacts of non-biodegradable packages.
(Copyright © 2020 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
Externí odkaz: