Biodegradability and disintegration of multilayer starch films with electrospun PCL fibres encapsulating carvacrol
[EN] The biodegradation and disintegration of thermoplastic starch multilayers containing carvacrol(CA)-loaded poly-(epsilon-caprolactone) electrospun mats were evaluated under thermophilic composting conditions for 45 and 84 days, respectively, and compared with non-loaded carvacrol films and pure...
| Autores: | , , |
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| Tipo de documento: | artigo |
| Data de publicação: | 2020 |
| País: | España |
| Recursos: | Universitat Politècnica de València (UPV) |
| Repositório: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Idioma: | inglês |
| OAI Identifier: | oai:riunet.upv.es:10251/162243 |
| Acesso em linha: | https://riunet.upv.es/handle/10251/162243 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Thermoplastic starch Poly-(epsilon-caprolactone) Carvacrol TGA Disintegration Biodegradation TECNOLOGIA DE ALIMENTOS |
| Resumo: | [EN] The biodegradation and disintegration of thermoplastic starch multilayers containing carvacrol(CA)-loaded poly-(epsilon-caprolactone) electrospun mats were evaluated under thermophilic composting conditions for 45 and 84 days, respectively, and compared with non-loaded carvacrol films and pure starch films. Sample mass loss, thermogravimetric and visual analyses were performed throughout the disintegration test. The disintegration behaviour of all multilayers was similar, reaching values of 75-80% after 84 days. Biodegradation, assessed by carbon dioxide measurements, revealed that all the carvacrol-free films completely biodegraded after 25 composting days. However, the presence of CA notably affected the compost inoculum activity, thus limiting the biodegradability of the CA-loaded multilayers to a maximum value of around 85% after 45 days. Nevertheless, this value was close to that established by the standard ISO method to qualify as biodegradable material. |
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