Synthesis of biodegradable films based on cassava starch containing free and nanoencapsulated β‐carotene

Assis, Renato Queiroz; Pagno, Carlos Henrique; Costa, Tânia Maria Haas; Flôres, Simone Hickmann; Rios, Alessandro de Oliveira

doi:10.1002/pts.2364

Cited by 55 publications

(39 citation statements)

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“…The elevated value for moisture content might have been associated with the hygroscopicity of the polyols (glycerol, mainly) [49] that directly absorb water. Apparently, the formulations that contained TP recorded lower values of moisture content (%), a fact that could be attributed to the hydrophobicity of carotenoids [17,47], and furthermore, which could be connected with the matrix stability. Table 2.…”

Section: Physical Appearance and Measurementsmentioning

confidence: 95%

“…There is an increasing interest in the use of biomass-derived polymers and the study of techniques for the development of biodegradable packaging, an alternative to the use of polymers from non-renewable sources for use in bioplastic packaging [17,18]. Moreover, interest in natural substances that can be used as process additives in polymers is increasing [19,20].…”

Section: Introductionmentioning

confidence: 99%

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Poly(vinyl alcohol)-Based Biofilms Plasticized with Polyols and Colored with Pigments Extracted from Tomato By-Products

et al. 2020

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In the current work the physicochemical features of poly(vinyl alcohol) (PVOH) biofilms, enriched with eco-friendly polyols and with carotenoid-rich extracts, were investigated. The polyols, such as glycerol (Gly), 1,3-propanediol (PDO), and 2,3-butanediol (BDO) were used as plasticizers and the tomato-based pigments (TP) as coloring agents. The outcomes showed that β-carotene was the major carotenoid in the TP (1.605 mg β-carotene/100 DW), which imprinted the orange color to the biofilms. The flow behavior indicated that with the increase of shear rate the viscosity of biofilm solutions also increased until 50 s−1, reaching values at 37 °C of approximately 9 ± 0.5 mPa·s for PVOH, and for PVOH+TP, 14 ± 0.5 mPa·s in combination with Gly, PDO, and BDO. The weight, thickness, and density of samples increased with the addition of polyols and TP. Biofilms with TP had lower transparency values compared with control biofilms (without vegetal pigments). The presence of BDO, especially, but also of PDO and glycerol in biofilms created strong bonds within the PVOH matrix by increasing their mechanical resistance. The novelty of the present approach relies on the replacement of synthetic colorants with natural pigments derived from agro-industrial by-products, and the use of a combination of biodegradable polymers and polyols, as an integrated solution for packaging application in the bioplastic industry.

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Section: Physical Appearance and Measurementsmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Poly(vinyl alcohol)-Based Biofilms Plasticized with Polyols and Colored with Pigments Extracted from Tomato By-Products

et al. 2020

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“…The oxidative stability of sunflower oil was used to evaluate the antioxidant or prooxidant potential of the films as described by Assis, Hickmann, Pagno, Maria, and Costa (). The films were cut into rectangles (10 cm × 5 cm), sealed on the sides and sunflower oil without the addition of synthetic antioxidants was added (13 ml) (Figure ).…”

Section: Methodsmentioning

confidence: 99%

Biodegradable sodium alginate films incorporated with norbixin salts

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Assis

et al. 2020

J Food Process Engineering

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Plastic packaging derived from petroleum may have a negative impact on the environment when it is not properly recycled. Some studies present the use of biodegradable packages developed from natural polymers as a sustainable alternative; thus, the present work aimed to develop biodegradable sodium alginate films with antioxidant properties by the incorporation of carotenoid norbixin. Norbixin salts at the concentration of 0.01-0.05% were added to the sodium alginate films complexed with calcium ions. Carotenoid incorporation did not significantly impacted with the moisture content and the swelling capacity of the films. The thickness, water activity, and solubility were higher in the films with 0.05% addition of norbixin salts. The presence of the carotenoid improved the thermal stability of the films, as well as the water vapor barrier properties and lower ultraviolet-visible light transmission. However, the incorporation of 0.03% norbixin salts showed the best result for the analysis of antioxidant activity, with lower formation of oxidation products during sunflower oil storage and potential application for high fat foods. Practical ApplicationsResearchers aim to replace synthetic packaging by eco-friendly packaging. The use of alternative materials such as polysaccharides, proteins, and lipids has been studied for the production of packaging susceptible to degradation under environmental conditions. Thus, the present work developed sodium alginate films complexed with calcium and incorporated with norbixin salts able to decrease sunflower oil oxidation.

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“…The development and application of bio‐based materials in the food packaging field has increasingly gained attention as they are an alternative to non‐biodegradable petroleum‐based plastics, which in turn have been proven to cause serious environmental impacts . As reported by Averous and Boquillon, biodegradable polymers may be divided according to their origin into four families, as from biomass products, from micro‐organisms, from biotechnology and from petrochemical products.…”

Section: Introductionmentioning

confidence: 99%

Gelatin capsule residue‐based films crosslinked with the natural agent genipin

et al. 2019

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This study focused on the development and characterization of biodegradable films based on gelatin capsule residue crosslinked with the natural agent genipin extracted from genipap (Genipa americana L.). Their potential on maintaining the quality attributes (level of peroxides, conjugated dienes and trienes and color) of extra‐virgin olive oil under accelerated storage conditions was investigated. Results showed that the genipin‐crosslinked films had a dark blue appearance. Their total soluble matter, water vapor permeability, tensile strength, ultraviolet and visible light barriers and thermal properties were improved in relation to the uncrosslinked film, whereas their moisture content and microstructure were not affected. In general, films presented comparable properties to those of glutaraldehyde‐crosslinked films. The developed films successfully protected the packed oil from primary and secondary oxidation and maintained the color over the storage period. Therefore, this study demonstrated the effectiveness of genipin on improving the properties of gelatin‐based films and the promising application of films as food packaging.

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Synthesis of biodegradable films based on cassava starch containing free and nanoencapsulated β‐carotene

Cited by 55 publications

References 50 publications

Poly(vinyl alcohol)-Based Biofilms Plasticized with Polyols and Colored with Pigments Extracted from Tomato By-Products

Poly(vinyl alcohol)-Based Biofilms Plasticized with Polyols and Colored with Pigments Extracted from Tomato By-Products

Biodegradable sodium alginate films incorporated with norbixin salts

Gelatin capsule residue‐based films crosslinked with the natural agent genipin

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