Preparation and Physicochemical Properties of Modified Corn Starch–Chitosan Biodegradable Films
Starch is a biopolymer with enormous potential for generating new biodegradable packages due to its easy availability and low cost. However, due to its weak functional properties, limitation of its interaction with some hydroxyl groups and evaluation of blends with other polymers are necessary in or...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-12-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/13/24/4431 |
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| author | Enrique Javier Jiménez-Regalado Carolina Caicedo Abril Fonseca-García Claudia Cecilia Rivera-Vallejo Rocio Yaneli Aguirre-Loredo |
| author_facet | Enrique Javier Jiménez-Regalado Carolina Caicedo Abril Fonseca-García Claudia Cecilia Rivera-Vallejo Rocio Yaneli Aguirre-Loredo |
| author_sort | Enrique Javier Jiménez-Regalado |
| collection | DOAJ |
| description | Starch is a biopolymer with enormous potential for generating new biodegradable packages due to its easy availability and low cost. However, due to its weak functional properties, limitation of its interaction with some hydroxyl groups and evaluation of blends with other polymers are necessary in order to improve its performance. Glycerol-plasticized acetylated corn starch films were developed using the casting method, and the impact of incorporating chitosan (TPS:CH) in various proportions (75:25, 50:50, and 25:75 <i>v</i>/<i>v</i>) was studied in the present research. The effect of chitosan ratios on the physical, mechanical, water-vapor barrier, and thermal properties of the film was studied. Chitosan-protonated amino groups promoted the formation of intermolecular bonds, improving tensile strength, thermal stability, hydrophobicity, water adsorption capacity, and the gas barrier of starch films. The results show that the film composed of TPS25-CH75 proved to be the best barrier to water vapor; thus, these composite films are excellent choices for developing biodegradable packaging for the food industry. |
| first_indexed | 2024-03-10T03:14:25Z |
| format | Article |
| id | doaj.art-46d9faebe2384376916ea592ff4e954d |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T03:14:25Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-46d9faebe2384376916ea592ff4e954d2023-11-23T10:16:16ZengMDPI AGPolymers2073-43602021-12-011324443110.3390/polym13244431Preparation and Physicochemical Properties of Modified Corn Starch–Chitosan Biodegradable FilmsEnrique Javier Jiménez-Regalado0Carolina Caicedo1Abril Fonseca-García2Claudia Cecilia Rivera-Vallejo3Rocio Yaneli Aguirre-Loredo4Centro de Investigación en Química Aplicada (CIQA), Blvd. Enrique Reyna Hermosillo 140, Saltillo, Coahuila 25294, MexicoGrupo de Investigación en Química y Biotecnología (QUIBIO), Facultad de Ciencias Básicas, Universidad Santiago de Cali, Pampalinda, Santiago de Cali 760035, ColombiaCentro de Investigación en Química Aplicada (CIQA), Blvd. Enrique Reyna Hermosillo 140, Saltillo, Coahuila 25294, MexicoCentro de Investigación en Química Aplicada (CIQA), Blvd. Enrique Reyna Hermosillo 140, Saltillo, Coahuila 25294, MexicoCentro de Investigación en Química Aplicada (CIQA), Blvd. Enrique Reyna Hermosillo 140, Saltillo, Coahuila 25294, MexicoStarch is a biopolymer with enormous potential for generating new biodegradable packages due to its easy availability and low cost. However, due to its weak functional properties, limitation of its interaction with some hydroxyl groups and evaluation of blends with other polymers are necessary in order to improve its performance. Glycerol-plasticized acetylated corn starch films were developed using the casting method, and the impact of incorporating chitosan (TPS:CH) in various proportions (75:25, 50:50, and 25:75 <i>v</i>/<i>v</i>) was studied in the present research. The effect of chitosan ratios on the physical, mechanical, water-vapor barrier, and thermal properties of the film was studied. Chitosan-protonated amino groups promoted the formation of intermolecular bonds, improving tensile strength, thermal stability, hydrophobicity, water adsorption capacity, and the gas barrier of starch films. The results show that the film composed of TPS25-CH75 proved to be the best barrier to water vapor; thus, these composite films are excellent choices for developing biodegradable packaging for the food industry.https://www.mdpi.com/2073-4360/13/24/4431biodegradable filmthermoplastic starchchitosanmechanical propertieswater-vapor permeability |
| spellingShingle | Enrique Javier Jiménez-Regalado Carolina Caicedo Abril Fonseca-García Claudia Cecilia Rivera-Vallejo Rocio Yaneli Aguirre-Loredo Preparation and Physicochemical Properties of Modified Corn Starch–Chitosan Biodegradable Films Polymers biodegradable film thermoplastic starch chitosan mechanical properties water-vapor permeability |
| title | Preparation and Physicochemical Properties of Modified Corn Starch–Chitosan Biodegradable Films |
| title_full | Preparation and Physicochemical Properties of Modified Corn Starch–Chitosan Biodegradable Films |
| title_fullStr | Preparation and Physicochemical Properties of Modified Corn Starch–Chitosan Biodegradable Films |
| title_full_unstemmed | Preparation and Physicochemical Properties of Modified Corn Starch–Chitosan Biodegradable Films |
| title_short | Preparation and Physicochemical Properties of Modified Corn Starch–Chitosan Biodegradable Films |
| title_sort | preparation and physicochemical properties of modified corn starch chitosan biodegradable films |
| topic | biodegradable film thermoplastic starch chitosan mechanical properties water-vapor permeability |
| url | https://www.mdpi.com/2073-4360/13/24/4431 |
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