TY - JOUR
T1 - Preparation of sodium alginate films incorporated with hydroalcoholic extract of Macrocystis pyrifera
AU - Ramos, Judith
AU - Villacrés, Nelson Adrián
AU - Cavalheiro, Éder Tadeu Gomes
AU - Alarcón, Hugo A.
AU - Valderrama, Ana C.
N1 - Funding Information:
Funding: The authors are grateful for the financial support provided by the Peruvian government
Publisher Copyright:
© 2023, Ramos et al. This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/), allowing third parties to copy and redistribute the material in any medium or format and to remix, transform, and build upon the material for any purpose, even commercially, provided the original work is properly cited and states its license.
PY - 2022/10/17
Y1 - 2022/10/17
N2 - Agroindustry needs novel materials to replace synthetic plastics. This article introduces sodium alginate films with antioxidant properties. The films, which were incorporated with hydroalcoholic extract of Macrocystis pyrifera, were tested on sliced Hass avocados. The research featured sodium alginate films incorporated with hydroalcoholic extracts of M. pyrifera. Uncoated avocado halves served as control, while the experimental samples were covered with polymer film with or without hydroalcoholic extract. A set of experiments made it possible to evaluate the effect of the extracts on polymeric matrices, release kinetics, and sensory profile of halved Hass avocados. A greater concentration of hydroalcoholic extracts increased the content of phenolic compounds and their antioxidant activity. As a result, the bands in the carboxylate groups of sodium alginate became more intense. Crystallinity decreased, whereas opacity and mass loss percentage increased, and conglomerates appeared on the surface of the films. These processes fit the Korsmeyer-Peppas kinetic model because they resulted from a combination of diffusion and swelling mechanisms in the films. The films incorporated with hydroalcoholic extract of M. pyrifera proved to be an effective alternative to traditional fruit wrapping materials.
AB - Agroindustry needs novel materials to replace synthetic plastics. This article introduces sodium alginate films with antioxidant properties. The films, which were incorporated with hydroalcoholic extract of Macrocystis pyrifera, were tested on sliced Hass avocados. The research featured sodium alginate films incorporated with hydroalcoholic extracts of M. pyrifera. Uncoated avocado halves served as control, while the experimental samples were covered with polymer film with or without hydroalcoholic extract. A set of experiments made it possible to evaluate the effect of the extracts on polymeric matrices, release kinetics, and sensory profile of halved Hass avocados. A greater concentration of hydroalcoholic extracts increased the content of phenolic compounds and their antioxidant activity. As a result, the bands in the carboxylate groups of sodium alginate became more intense. Crystallinity decreased, whereas opacity and mass loss percentage increased, and conglomerates appeared on the surface of the films. These processes fit the Korsmeyer-Peppas kinetic model because they resulted from a combination of diffusion and swelling mechanisms in the films. The films incorporated with hydroalcoholic extract of M. pyrifera proved to be an effective alternative to traditional fruit wrapping materials.
KW - Avocado
KW - Coating
KW - Films
KW - Hydroalcoholic extracts
KW - Macrocystis pyrifera
KW - Sodium alginate
KW - Storage
UR - http://www.scopus.com/inward/record.url?scp=85143858838&partnerID=8YFLogxK
U2 - 10.21603/2308-4057-2023-1-553
DO - 10.21603/2308-4057-2023-1-553
M3 - Artículo (Contribución a Revista)
AN - SCOPUS:85143858838
SN - 2308-4057
VL - 11
SP - 64
EP - 71
JO - Foods and Raw Materials
JF - Foods and Raw Materials
IS - 1
ER -