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Polymers
Volume 17
Issue 21
10.3390/polym17212903
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Article

Effect of the Addition of Acetylated Polysaccharides on the Properties of an Active Packaging Based on Polysuccinimide and Oregano Essential Oil

by
Ignacio Antonio Hernández-Pérez
1,
María Hernández-González
2,*,
Alejandro Vega-Rios
3,
América Chávez-Martínez
1,
Ana Luisa Rentería-Monterrubio
1,
Rogelio Sánchez-Vega
1,
Ana Margarita Rodríguez-Hernández
4,
Mario Alberto Morales-Ovando
5 and
Juan Manuel Tirado-Gallegos
1,*
1
Facultad de Zootecnia y Ecología, Universidad Autónoma de Chihuahua, Periférico R, Almada km 1, Chihuahua 31453, Chihuahua, Mexico
2
Departamento de Ciencia y Tecnología de Alimentos, División de Ciencia Animal, Universidad Autónoma Agraria Antonio Narro, Calzada Antonio Narro 1923, Buenavista, Saltillo 23515, Coahuila, Mexico
3
Centro de Investigación en Materiales Avanzados, S.C. (CIMAV), Miguel de Cervantes #120, Complejo Industrial Chihuahua, Chihuahua 31136, Chihuahua, Mexico
4
Centro de Investigación en Química Aplicada (CIQA), Enrique Reyna Hermosillo, No. 140, col. San José de los Cerritos, Saltillo 25294, Coahuila, Mexico
5
Facultad de Ciencias de la Nutrición y Alimentos, Universidad de Ciencias y Artes de Chiapas, Libramiento Norte Poniente No. 1150, Tuxtla Gutiérrez 29039, Chiapas, Mexico
*
Authors to whom correspondence should be addressed.
Polymers 2025, 17(21), 2903; https://doi.org/10.3390/polym17212903
Submission received: 1 October 2025 / Revised: 27 October 2025 / Accepted: 28 October 2025 / Published: 30 October 2025
(This article belongs to the Special Issue Polymers and Their Interactions with Biotics in Food Science and Nutrition)
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Abstract

Polysuccinimide (PSI) is a biodegradable, extended-release polymer with great potential for developing active food packaging. In this study, we prepared PSI films functionalized with oregano essential oil (OEO, 3.5% w/w) and reinforced with acetylated polysaccharides (corn starch and microcellulose from Agave Lechuguilla Torr fibers) with different degrees of substitution (DS; 0.44–1.25) at a constant concentration (22% w/w). Tensile strength (0.86–1.34 MPa), elasticity modulus (0.96–1.65 MPa) and elongation at break (14.16–21.66%) increased (p < 0.05) with DS in the reinforcing materials. The moisture content and solubility decreased from 13.17% to 9.81% and from 45.64% to 38.75%, respectively. With increasing DS, water vapor permeability (WVP) decreased by up to 56.4% compared to the control film (unacetylated polysaccharides). The DS of the reinforcing materials did not affect the antioxidant activity. Antibacterial activity against Escherichia coli and Staphylococcus aureus revealed similar inhibition halos for both bacteria, regardless of the DS. Thermogravimetric and calorimetric analysis showed that reinforcing PSI films with acetylated materials improves thermal stability. The results of this research suggest that PSI, a polymer derived from the thermal polymerization of aspartic acid, has significant potential for the development of eco-friendly active packaging for food products.
Keywords: Agave Lechuguilla Torr; thermal properties; starch; mechanical properties; microcellulose Agave Lechuguilla Torr; thermal properties; starch; mechanical properties; microcellulose
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MDPI and ACS Style

Hernández-Pérez, I.A.; Hernández-González, M.; Vega-Rios, A.; Chávez-Martínez, A.; Rentería-Monterrubio, A.L.; Sánchez-Vega, R.; Rodríguez-Hernández, A.M.; Morales-Ovando, M.A.; Tirado-Gallegos, J.M. Effect of the Addition of Acetylated Polysaccharides on the Properties of an Active Packaging Based on Polysuccinimide and Oregano Essential Oil. Polymers 2025, 17, 2903. https://doi.org/10.3390/polym17212903

AMA Style

Hernández-Pérez IA, Hernández-González M, Vega-Rios A, Chávez-Martínez A, Rentería-Monterrubio AL, Sánchez-Vega R, Rodríguez-Hernández AM, Morales-Ovando MA, Tirado-Gallegos JM. Effect of the Addition of Acetylated Polysaccharides on the Properties of an Active Packaging Based on Polysuccinimide and Oregano Essential Oil. Polymers. 2025; 17(21):2903. https://doi.org/10.3390/polym17212903

Chicago/Turabian Style

Hernández-Pérez, Ignacio Antonio, María Hernández-González, Alejandro Vega-Rios, América Chávez-Martínez, Ana Luisa Rentería-Monterrubio, Rogelio Sánchez-Vega, Ana Margarita Rodríguez-Hernández, Mario Alberto Morales-Ovando, and Juan Manuel Tirado-Gallegos. 2025. "Effect of the Addition of Acetylated Polysaccharides on the Properties of an Active Packaging Based on Polysuccinimide and Oregano Essential Oil" Polymers 17, no. 21: 2903. https://doi.org/10.3390/polym17212903

APA Style

Hernández-Pérez, I. A., Hernández-González, M., Vega-Rios, A., Chávez-Martínez, A., Rentería-Monterrubio, A. L., Sánchez-Vega, R., Rodríguez-Hernández, A. M., Morales-Ovando, M. A., & Tirado-Gallegos, J. M. (2025). Effect of the Addition of Acetylated Polysaccharides on the Properties of an Active Packaging Based on Polysuccinimide and Oregano Essential Oil. Polymers, 17(21), 2903. https://doi.org/10.3390/polym17212903

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