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Development and application starch films: PBAT with additives for evaluating the shelf life of Tommy Atkins mango in the fresh‐cut state
Author(s) -
Leal Ingrid Lessa,
Silva Rosa Yasmin Carolino,
Silva Penha Josenai,
Cruz Correia Paulo Romano,
Silva Melo Pollyana,
Guimarães Danilo Hansen,
Barbosa Josiane Dantas Viana,
Druzian Janice Izabel,
Machado Bruna Aparecida Souza
Publication year - 2019
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.48150
Subject(s) - starch , shelf life , citric acid , adipate , materials science , ultimate tensile strength , glycerol , polymer , moisture , solubility , nanocellulose , chemical engineering , food science , cellulose , composite material , chemistry , organic chemistry , engineering
In this study, formulations of cassava starch and poly(butylene adipate‐ co ‐terephthalate) flexible films were developed, with glycerol, coconut nanocellulose, annatto, and citric acid in different concentrations, as well as the effectiveness of the selected materials in fresh‐cut mangoes storage was evaluated. The tensile strength of the different formulations varied from 1.90 (E4) to 6.65 MPa (E3c), and the strain varied from 206.31 (E1c) to 278.41% (E8); this variation was dependent on the percentage of the polymer matrix incorporated. The a w values of the formulations ranged from 0.396 (E2) to 0.569 (E3c). The Formulations E4 and E7 (with additives) presented good properties and were selected to condition mangoes. The micrographs of these films showed regions of micropores that can facilitate the diffusion of water from the packaged product to the surface, allowing decreases in moisture and a w , which is associated with higher color maintenance during fruit storage. E7 presented better barrier properties than E4 (lower values of WVP and water solubility) which may have influenced in a positive way to maintain the stability of the package in the studied period. E7 can be considered as a viable alternative for minimally processed mango storage. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136 , 48150.