journal article·2022-09-28Open access

"EVALUATION OF PHYTOTOXICITY AND BIODEGRADATION OF CELLULOSE REINFORCED STARCH BIOCOMPOSITES "

", ALEXANDRA AUGUSTA REICHERT, Postgraduate Program in Materials Science and Engineering (PPGCEM), Federal University of Pelotas (UFPel), Pelotas, Brazil ", THALES CASTILHOS DE FREITAS, "Postgraduate Program in Biodiversity and Nature Conservation, Federal University of Juíz de Fora (UFJF), Juíz de Fora, Brazil ", JOSÉ HENRIQUE ALANO, Engineering School, Federal University of Rio Grande, via Itália, km 8, Rio Grande, RS, Brazil, AMANDA DANTAS DE OLIVEIRA, "Postgraduate Program in Materials Science and Engineering (PPGCEM), Federal University of Pelotas (UFPel), Pelotas, Brazil "

Cellulose Chemistry and Technology· Volume 56· Issue 7-8

Abstract

With increasing environmental pollution, sustainable alternatives for packaging materials are important. This study aimed to evaluate the phytotoxicity and biodegradation of corn starch films reinforced with cellulose extracted from pineapple crowns. The films were produced by casting mixtures of corn starch, glycerol and cellulose at different concentrations (5%, 10% and 15%), along with a pure starch control film. The phytotoxicity assay showed that the addition of films to the soil does not negatively influence the germination and growth of lettuce seeds (Lactuca sativa). In the biodegradation assay, the films were completely degraded after 60 days, especially the film containing 15% cellulose, which experienced rapid biodegradation, with a high rate of initial mass loss. Analysis of the Fourier transform infrared (FTIR) spectra after degradation of the films showed no structural changes. These materials have no harmful effects on the environment and have great potential for application as rapid-use packaging.
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Research context

OpenAlex topics: Nanocomposite Films for Food Packaging · biodegradable polymer synthesis and properties · Microplastics and Plastic Pollution

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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