Physical evaluation of biodegradable films of calcium alginate plasticized with polyols

Santana, Audirene Amorim; Kieckbusch, Theo Guenter

doi:10.1590/s0104-66322013000400015

Cited by 63 publications

(58 citation statements)

References 17 publications

(15 reference statements)

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“…The glycerol particles seemed well dispersed and embedded in the biopolymer matrix. Because of the close molecular structures of the mixtures, there was good compatibility, miscibility, and interfacial adhesion between the glycerol and mucilage polymer, which thereby produced tougher films (Santana and Kieckbusch 2013;Petchwattana and Covavisaruch 2014). These observations were supported by the increase in EB and decrease in YM of plasticized films in the present study.…”

Section: Tensile Propertiessupporting

confidence: 80%

“…Acknowledging such limitation, glycerol, which has been generally regarded as safe (GRAS) by the Food and Drug Administration (FDA, USA), was tested as a potential plasticizer for the edible film development. Given its high workability, efficiency, and flexibility, glycerol is one of the most widely used hydrophilic plasticizers in various polymer manufacturing (Santana and Kieckbusch 2013). The present work studied the effect of adding various concentrations of glycerol as a plasticizer, with characterizations in terms of physical, mechanical, and morphological properties of the developed film.…”

Section: Introductionmentioning

confidence: 99%

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Development of Edible Film from Flaxseed Mucilage

Tee¹,

Wong²,

Tan³

et al. 2016

BioResources

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A flaxseed mucilage-based edible film was developed with the addition of glycerol as a plasticizer. Various concentrations of glycerol were blended into the extracted mucilage, and the developed films were studied in terms of physical, mechanical, and morphological properties. As the glycerol concentration was increased from 1 to 5 wt%, the elongation at break of the films prominently increased, whereas the tensile strength and Young's modulus decreased. The film failed to form at 6 wt% glycerol inclusion. The developed film was slightly reddish and yellowish in color, with enhanced transparency as the glycerol concentration in the film increased. Overall, this work demonstrated that with the addition of glycerol as a plasticizer up to 5 wt%, a flaxseed mucilage-based edible film could be developed as a sustainable alternative for food and bioproduct coating or packaging.

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Section: Tensile Propertiessupporting

confidence: 80%

Section: Introductionmentioning

confidence: 99%

Development of Edible Film from Flaxseed Mucilage

Tee¹,

Wong²,

Tan³

et al. 2016

BioResources

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“…Figure (b) indicates that most films presented elongation at break ( E break ) between 10 and 15%, consistent with the E value of 13% reported for alginate films plasticized with glycerol . The E break value determined for N1 was statistically larger ( p < 0.05) than those found for N5, N6, and D1, and N6 elongated statistically more than D6.…”

Section: Resultssupporting

confidence: 85%

Physicochemical and antimicrobial properties of in situ crosslinked alginate/hydroxypropyl methylcellulose/ε‐polylysine films

Blachechen

Petri

2019

J of Applied Polymer Sci

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In the present study, in situ crosslinked films were easily prepared by the spray deposition of Phase A, composed by sodium alginate (Alg), hydroxypropyl methylcellulose (HPMC), ε‐polylysine (ε‐PL), and plasticizers, followed by the spray deposition of Phase B (Ca2+ ions) on polystyrene dishes. The effect of the amount of plasticizer, HPMC, and ε‐PL in Phase A on the films properties was explored in a set of 12 systems. Fourier transform infrared vibrational spectroscopy in the attenuated total reflectance mode revealed that plasticizers compete with Ca2+ ions for complexation with Alg. Films with high HPMC content and low content of plasticizer and ε‐PL presented the best mechanical properties. The best system presented Young modulus of 0.76 ± 0.10 GPa, water vapor transmission of 5.35 ± 0.28 mg cm−2 h−1, swelling ratio of 1374 ± 97%, 99.99% reduction against Gram‐negative Escherichia coli bacteria, and 99.9% reduction against Gram‐positive Staphylococcus aureus bacteria. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48832.

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“…Os filmes foram confeccionados de acordo com metodologia estabelecida por Silva et al (2016) e Santana et al (2013), sendo obtidos segundo a técnica de casting, a qual consiste na preparação da solução filmogênica e aplicação conveniente da mesma em um suporte (placas de estireno, d=14 cm). A espessura dos filmes foi controlada através da massa de solutos na solução filmogênica vertida no suporte (aproximadamente 50 ml).…”

Section: Ufscar -São Carlos -Sp 16 a 19 De Julho De 2017unclassified

INFLUÊNCIA DO MESOCARPO DE COCO BABAÇU NA FORMAÇÃO DE BIOFILMES ADITIVADOS COM COMPOSTOS ANTIOXIDANTES – CUPUAÇU (Theobroma grandiflorum).

Silva¹,

Lima²,

Vellez³

et al. 2017

Blucher Chemical Engineering Proceedings

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RESUMO -Filmes biodegradáveis são produzidos a partir de polímeros naturais, principalmente polissacarídeos e proteínas com potencial aplicação na indústria farmacêutica e alimentícia. A incorporação do mesocarpo de coco babaçu além de conferir maior resistência ao filme, proporciona melhores propriedades físico-químicas. O objetivo deste trabalho é avaliar o comportamento do mesocarpo de coco babaçu e da incorporação de extratos de frutas, no caso o cupuaçu, a fim de lhes conferir atividade antioxidante durante o processo de confecção de filmes de carboidratos e proteínas, assim como caracterizar as interações sinérgicas entre os plastificantes orgânicos, a estrutura reticulada dos carboidratos e proteínas e o poder plastificante da água e seus reflexos sobre as propriedades físicas de interesse para embalagens de alimentos e fármacos. O cupuaçu foi aliado a uma matriz de melhor rigidez, pois possui um alto teor de água, sendo necessária a utilização de uma matriz mais resistente. Os biofilmes apresentaram boa visibilidade, flexibilidade e facilidade de desprendimento do suporte. Altas concentrações de alginato de sódio, mesocarpo de coco babaçu e glicerol seriam ideais para uma futura produção de sacolas. INTRODUÇÃOO babaçu (Orbignya phalerata Mart.) é uma das mais importantes representantes das palmeiras brasileiras. Esta palmeira é nativa das regiões norte, nordeste e centro-oeste do Brasil. O Nordeste brasileiro possui uma área de cerca de 18 milhões de hectares plantados com babaçu, sendo que a maior parte está concentrada no estado do Maranhão. Ele tem 64 usos catalogados, dos quais cerca de uma dezena poderia ser economicamente viável; contudo, seu potencial continua inexplorado, devido à falta de escala e estrutura produtiva (Carraza et al., 2012).O Cupuaçu pertence à família Sterculiacea de denominação Theobroma grandiflorum schum. É uma fruta típica da Amazônia, mas também cultivada nos estados do Pará, Maranhão e Tocantins. Sua polpa possui um forte aroma e um notável sabor ácido, sendo empregada em doces no geral e possui maior comercialização quando congelada. Há diversos

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Physical evaluation of biodegradable films of calcium alginate plasticized with polyols

Cited by 63 publications

References 17 publications

Development of Edible Film from Flaxseed Mucilage

Development of Edible Film from Flaxseed Mucilage

Physicochemical and antimicrobial properties of in situ crosslinked alginate/hydroxypropyl methylcellulose/ε‐polylysine films

INFLUÊNCIA DO MESOCARPO DE COCO BABAÇU NA FORMAÇÃO DE BIOFILMES ADITIVADOS COM COMPOSTOS ANTIOXIDANTES – CUPUAÇU (Theobroma grandiflorum).

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