Biodegradation study of a starch and poly(lactic acid) co-extruded material in liquid, composting and inert mineral media

Gattin, Richard; Copinet, Alain; Bertrand, C.; Couturier, Yves

doi:10.1016/s0964-8305(02)00039-2

Cited by 78 publications

(25 citation statements)

References 14 publications

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“…Because starch is a highly biodegradable component, the material was more available to microorganisms, which improved the degradation. These results are in accordance with those reported by Gattin et al [15] where PLA-starch extruded films were subjected to composting in similar conditions for 45 days. The final mineralization percentage was 71%, which was facilitated by the presence of starch.…”

Section: Odoursupporting

confidence: 93%

See 1 more Smart Citation

Study of the Biodegrability of Degradable/Biodegradable Plastic Material in a Controlled Composting Environment

Vaverková¹,

Toman²,

Adamcová³

et al. 2012

Ecological Chemistry and Engineering S

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Abstract:The objective of this study was to determine the degrability/biodegradability of disposable plastic bags available on the market that are labeled as degradable/biodegradable and those certified as compost. The investigated materials were obtained from chain stores in the Czech Republic and Poland. Seven kinds of bags (commercially available) were used in this study. One of them was a disposable bag made of HDPE and mixed with totally degradable plastic additive (TDPA additive). Another was a disposable made of polyethylene with the addition of pro-oxidant additive (d2w additive). One was labeled as 100% degradable within various periods of time, from three months up to three years, and four were certified as compostable. The test was carried out in a controlled composting environment. The biodisintegration degree of the obtained pieces was evaluated following a modified version of ČSN EN 14806 Norm ''Packaging -Preliminary evaluation of the disintegration of the packaging materials under simulated composting conditions in a laboratory scale test" and a modified version of ČSN EN ISO 20200 "Plastics -Determination of the degree of disintegration of plastic materials under simulated composting conditions in laboratory-scale test" (ISO 20200:2004). The emphasis was put on determination whether the bags are degradable/biodegradable or not.

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Section: Odoursupporting

confidence: 93%

“…The final mineralization percentage was 71%, which was facilitated by the presence of starch. The biodisintegration degree of PLA-corn did not depend on the shape and/or size of the manufactured pieces because the behavior of all of the tested pieces was the same [15].…”

Section: Odourmentioning

confidence: 98%

Study of the Biodegrability of Degradable/Biodegradable Plastic Material in a Controlled Composting Environment

Vaverková¹,

Toman²,

Adamcová³

et al. 2012

Ecological Chemistry and Engineering S

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“…Na literatura os métodos que usualmente são utilizados para avaliar a biodegradabilidade de polímeros estão relacionados à avaliação da velocidade de crescimento de microorganismos, consumo do substrato (polímero), quantificação do CO 2 liberado com utilização do teste de Sturm [34] , alterações nas propriedades mecânicas dos polímeros [13,14] e respirometria [35] . O método para quantificar a liberação de CO 2 geralmente é realizado em solução ou em solo adequado a biodegradação [36] . Neste trabalho aqui apresentado foi realizado um estudo da biodegradabilidade de alguns dos filmes poliméricos obtidos, a fim de analisar as emissões dos gases durante o processo de incubação em latossolo comum em alguns estados do Brasil.…”

Section: Introductionunclassified

Filmes poliméricos baseados em amido e lignossulfonatos: preparação, propriedades e avaliação da biodegradação

et al. 2014

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Resumo: Este trabalho envolveu a obtenção de filmes poliméricos a partir de amido de milho e incorporação de lignina na forma de lignossulfonato. A motivação deste trabalho está relacionada à utilização do amido na obtenção de filmes devido ao seu potencial de biodegradação, além do aproveitamento de resíduos de lignossulfonatos provenientes da indústria de celulose e papel. Para a obtenção dos filmes foram utilizados lignossulfonatos em pó e foram realizadas diversas moldagens com variação do tipo e da proporção (1% a 4%) de lignossulfonato utilizado. Algumas análises foram realizadas nos filmes poliméricos para comparar propriedades térmicas por DSC (Calorimetria Exploratória Diferencial), e propriedades de tração, em equipamento de DMTA (Análise Térmica Dinâmico-Mecânica). Neste estudo são destacadas as análises da biodegradação e da emissão dos gases liberados utilizando a técnica de Cromatografia Gasosa. De acordo com os resultados de DMTA, a maioria dos filmes poliméricos contendo lignossulfonatos apresentou resistência à tração inferior quando comparados aos filmes poliméricos sem lignossulfonatos (1,024 MPa). Porém, os filmes contendo lignossulfonato modificado com sódio (Vixil S) apresentaram maiores valores de resistência à tração quando comparado aos outros filmes contendo os lignossulfonatos utilizados (Vixil I e Vixil Tan). Nas análises térmicas foram notadas semelhanças entre os dois tipos principais de filmes poliméricos (amido; e amido com lignossulfonato), com alguns deslocamentos das temperaturas dos principais picos máximos dos filmes contendo lignossulfonato (4%, Vixil S). Na análise de biodegradabilidade foi verificado que os materiais são biodegradáveis e houve uma emissão maior de CO 2 e N 2 O das amostras dos filmes contendo 4% lignossulfonato do tipo Vixil S, em comparação com as amostras sem lignossulfonato. Palavras-chave: Filme polimérico, amido, lignossulfonato, DMTA, DSC, biodegradação. Polymeric Films Based on Starch and lignosulfonates: Preparation, Properties and Evaluation of BiodegradationAbstract: We obtained polymer films from corn starch with lignin incorporation as lignosulfonate. The motivation is the use of starch in obtaining films, due to their potential for biodegradation, and the use of lignosulfonate waste from the pulp and paper industry. To obtain films of lignosulfonates various powders of lignosulfonate were used, varying type and proportion (1% to 4%). Analyses were performed on polymer films to compare thermal properties by Differential Scanning Calorimetry, and tensile properties in Dynamic Mechanical Thermal Analysis, DMTA. We emphasize analyses of biodegradation and gas emission using gas chromatography. According to the results of DMTA, most polymeric films containing lignosulfonates showed lower tensile strength when compared to polymer films without lignosulfonates (1.024 MPa). However, the films containing lignosulfonate modified with sodium (Vixil S) showed higher tensile strength when compared to other films containing lignosulfonates (Vixil I and Vixi...

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“…After one month of shaking, the plastic discs were collected, washed thoroughly using distilled water, shade-dried and then weighed for final weight. From the data collected, weight loss of the plastics was calculated [11].…”

Section: Identification Of Bacteriamentioning

confidence: 99%

Screening of poly vinyl chloride degrading bacteria from plastic contaminated area of Baddi

Kumar

Teotia

Singh

2017

JAPR

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Biodegradation study of a starch and poly(lactic acid) co-extruded material in liquid, composting and inert mineral media

Cited by 78 publications

References 14 publications

Study of the Biodegrability of Degradable/Biodegradable Plastic Material in a Controlled Composting Environment

Study of the Biodegrability of Degradable/Biodegradable Plastic Material in a Controlled Composting Environment

Filmes poliméricos baseados em amido e lignossulfonatos: preparação, propriedades e avaliação da biodegradação

Screening of poly vinyl chloride degrading bacteria from plastic contaminated area of Baddi

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