Chitosan application for active bio-based films production and potential in the food industry: Review

Aïder, Mohammed

doi:10.1016/j.lwt.2010.01.021

Cited by 732 publications

(371 citation statements)

References 42 publications

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“…2 and Eq.3: Tensile Strength = +6.736825 -0.34651A -2.16454B + 0.441625AB -0.93355A 2 -0.93408B 2 (2) Elongation at Break = +16.3802 -3.69564A -5.61757B + 5.00865AB + 1.410138A 2 -0.70371B 2 (3) The empirical model equation Eq.1 forms a mathematical correlation model that can be employed to predict and optimize the tensile strength and elongation at break of films within the range of variable factors of this experiment. The response values determined by means of empirical models were compared to the experimental data designed in Table 1 as predicted value.…”

Section: Design Of Experiments By Ccdmentioning

confidence: 99%

“…Nevertheless, the using of biodegradable films as packaging materials is still one of the most hopeful approaches for effective methods of maintaining in food quality and medical application. By using the biodegradable films for food product packaging and medical field, the industry are facing with the problems of short shelf life period due to low antimicrobial resistance [2]. Due to that, the inclusion of the active compounds in the films becomes an innovative approach in order to avoid food product contamination by microbial [3].…”

Section: Introductionmentioning

confidence: 99%

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Optimization of Mechanical Properties of Silver Nanoparticles (AgNPS)-Loaded Chitosan/Polylactic Acid (PLA) Biofilms by Using Response Surface Methodology (RSM)

2017

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Abstract. Fabrication of silver nanoparticles-loaded chitosan-polylactic acid based biofilms was successfully employed for investigating the optimal of mechanical properties (i.e. tensile strength and elongation at break) of biofilms using central composite design (CCD), response surface methodology (RSM). In this study, only two factors that influences the biofilm mechanical properties were selected namely concentration of polyethelene glycol 400 (PEG) and percentage volume of polylactic acid (PLA)/chitosan. Analysis of results was performed by using response surface methodology (RSM) to avoid the traditional one-factor-at-a-time experiments. Common statistical tools such as analysis of variance (ANOVA) and response surface plot were used to determine the optimal tensile strength and elongation at break responses. Central composite design (CCD) builds a response surface for mechanical properties of biofilms optimization. From the results of statistical analysis, it could be concluded that the optimal conditions for mechanical properties of biofilms were 7.93% w/w concentration of polyethylene glycol (PEG) and 28.79%/71.21% percentage volume of polylactic acid (PLA)/chitosan. At this optimum stage, 7.99 MPa of tensile strength and 32.6 % elongation at break were obtained. Then, results of verification process have shown that the percentage errors are 2.08% for tensile strength and 3.89% elongation at break, respectively.

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Section: Design Of Experiments By Ccdmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optimization of Mechanical Properties of Silver Nanoparticles (AgNPS)-Loaded Chitosan/Polylactic Acid (PLA) Biofilms by Using Response Surface Methodology (RSM)

2017

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Section: Introductionunclassified

“…A utilização de polímeros naturais na formação de embalagens flexíveis vem sendo intensamente estudada em âmbito mundial, visando substituição parcial dos polímeros sintéticos, principalmente devido ao problema ambiental de acúmulo de lixo de difícil degradação [2] . Dentre os polímeros naturais, a quitosana tem despertado interesse, pois é biodegradável, provém de fontes renováveis e é capaz de formar filmes flexíveis e resistentes, com barreira eficiente a oxigênio, além de atividade antimicrobiana [4,5] .…”

Section: Introductionunclassified

“…A rastreabilidade é uma ferramenta utilizada para garantir a segurança e qualidade do produto; no caso de alimentos, a segurança alimentar e para fármacos, a ação do composto bioativo. As indústrias de embalagens estão buscando novos métodos objetivos, realizáveis e de custo efetivo, que mantenham a integridade do produto, visando garantir qualidade e segurança [1] , e a confiança do consumidor [2] .Embalagens inteligentes consistem em sistemas onde é possível a comunicação com o consumidor, de informações relacionadas à qualidade e segurança do produto através da embalagem. Isto envolve a incorporação de sensores ou indicadores que respondem por sinal (elétrico, colorimétrico, etc.)…”

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Sistemas inteligentes de embalagens utilizando filmes de quitosana como indicador colorimétrico de temperatura

2012

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Resumo: Clorofila, um pigmento natural termossensível, foi incorporado à matriz de filmes de quitosana visando a obter sistemas inteligentes de indicação de variação de temperatura. A quitosana é um polímero biodegradável que forma filmes flexíveis com eficiente barreira ao oxigênio, podendo ser alternativa ao uso de polímeros sintéticos. Clorofila foi adicionada (0,25 g/100 g) à suspensão de quitosana (2,00 g/100 g) formando filmes inteligentes de quitosana (FIQ). Os efeitos da temperatura (10 °C a 50 °C) e luminosidade (0 a 1000 lx) foram estudados utilizando um planejamento experimental, avaliando os parâmetros de cor (L*, a*, b*) e propriedades mecânicas. As suspensões de quitosana contendo clorofila foram aplicadas como revestimento em superfície de papel cartão formando o sistema de material flexível filme-papel cartão (S-FP), reduzindo significativamente o tempo de secagem. Os filmes caracterizaram-se pela homogeneidade, flexibilidade, coloração esverdeada e fácil manuseio. A variação de cor foi visualmente observada no sistema S-FP, alterando irreversivelmente de verde para amarelo quando submetido a temperaturas acima de 50 °C, independentemente da luminosidade. Desta forma, o sistema proposto tem potencial de aplicação como indicador colorimétrico de temperatura na faixa de 50 °C a 75 °C, com a vantagem de simples fabricação, biodegradabilidade e uso de materiais seguros para aplicação em contato direto com alimentos e fármacos, além do baixo custo. Palavras-chave: Embalagem inteligente, quitosana, clorofila, indicadores de temperatura. Alternative Intelligent Material for Packaging Using Chitosan Films as Colorimetric Temperature IndicatorsAbstract: Chlorophyll was incorporated into chitosan films, forming intelligent systems able to detect variations in temperature. Chitosan is a biodegradable polymer that forms flexible, resistant films with an efficient oxygen barrier. Chlorophyll was added (0.25 g/100 g) into chitosan suspension (2.00 g/100 g) and intelligent films (FIQ) were cast. The effects of temperature (10 °C to 50 °C) and luminosity (0 to 1000 lx) on the films were studied using an experimental design with two variables, analyzing the color parameters L*, a*, b* and mechanical properties. The films were characterized according to their homogeneity, flexibility, color and handling. Chitosan suspensions containing chlorophyll were also applied as coating on the surface of pieces of card-paper, forming a card paper film system (S-FP). By visual inspection we observed the color of the S-FP changing irreversibly from green to yellow when the temperature was above 50 °C. Therefore, the S-FP system can potentially be used as a colorimetric indicator for the 50 °C to 70 °C range, being advantageous owing to the ease of fabrication, biodegradability, safe use for food and low cost. Keywords: Intelligent packaging, chitosan, chlorophyll, temperature indicator. IntroduçãoO potencial de aplicação de novos sistemas de acondicionamento vem aumentando devido às exigências do consumidor e preocupação sobre...

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Edible Films and Coatings

Rojas‐Graü

Salvia‐Trujillo

Soliva‐Fortuny

et al. 2012

Decontamination of Fresh and Minimally Processed Produce

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Chitosan application for active bio-based films production and potential in the food industry: Review

Cited by 732 publications

References 42 publications

Optimization of Mechanical Properties of Silver Nanoparticles (AgNPS)-Loaded Chitosan/Polylactic Acid (PLA) Biofilms by Using Response Surface Methodology (RSM)

Optimization of Mechanical Properties of Silver Nanoparticles (AgNPS)-Loaded Chitosan/Polylactic Acid (PLA) Biofilms by Using Response Surface Methodology (RSM)

Sistemas inteligentes de embalagens utilizando filmes de quitosana como indicador colorimétrico de temperatura

Edible Films and Coatings

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