Effect of the addition of soy lecithin and Yucca schidigera extract on the properties of gelatin and glycerol based biodegradable films.

Dias, Tatiana P.; Grosso, Carlos Raimundo Ferreira; Andreuccetti, Caroline; Carvalho, Rosemary Aparecida de; Galicia-García, Tomás; Martı́nez-Bustos, Fernando

doi:10.4322/polimeros.2013.005

Cited by 10 publications

(11 citation statements)

References 23 publications

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“…However, the results of this study were higher than synthetic films, such as high-density polyethylene film (HDPE) (0.0012 g.mm/h m 2 kPa) and polyester film (0.0091 g.mm/kPa h m 2 ) [32] . Dias et al [33] obtained similar values to those found in this work (0.21 to 0.24 g.mm/h m 2 kPa) for films of pig hide gelatin and glycerol containing yucca extract and lecithin respectively.…”

Section: Water Vapor Permeability (Wvp)supporting

confidence: 80%

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Gelatin capsule waste: new source of protein to develop a biodegradable film

et al. 2017

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Section: Water Vapor Permeability (Wvp)supporting

confidence: 80%

“…Ma et al [41] , reported that the presence of olive oil led to the marked increases in the roughness of the films. The increase in the surface roughness is principally due to the adherence and formation of oil droplets [33] .…”

Section: Scanning Electron Microscopy (Sem)mentioning

confidence: 99%

Gelatin capsule waste: new source of protein to develop a biodegradable film

et al. 2017

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“…Rodriguez et al [19] found a synergistic behaviour (lower tensile strength, higher elongation and higher water vapour permeability, WVP) between glycerol (as plasticiser) and emulsifiers, such as Tween 20, Span 80 and soybean lecithin, in potato starch films. Finally, Dias et al [20] used glycerol as the plasticiser in gelatin-based films containing Yucca schidigera extract and lecithin, respectively. They obtained solid, flexible films with low WVP and concluded that addition of other emulsifiers commonly associated with plasticisers typically used in the production of edible and biodegradable films should be explored.…”

Section: Introductionmentioning

confidence: 99%

Water Vapor Permeability of Edible Films Based on Improved Cassava (Manihot esculenta Crantz) Native Starches

Yd¹,

Nindjin²,

Fa³

et al. 2017

J Food Process Technol

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Starch is used in the production of edible biodegradable packaging as an attractive alternative to synthetic polymers because it is a natural biopolymer of low cost and high availability. Many studies have been carried out on films based on cassava starch and the results show that these have good flexibility and low water vapor permeability. This present research was conducted to analyse the effect of glycerol, peanut oil and soybean lecithin on the water vapor permeability (WVP) of edible films based on improved cassava (Manihot esculenta Crantz) native starches from Côte d'Ivoire. The films were prepared using 4 g cassava starch, 25% and 30% glycerol (w/w), 5% and 10% peanut oil (w/w) and 0% to 5% soybean lecithin (w/w oil) in Petri dishes. The WVP of the films was determined at 25°C and 75% relative humidity. The moisture content of the films was determined in an oven at 105°C and the film thickness was determined manually using a micrometer. The resulting films were homogeneous, transparent and crack-free. WVP, moisture content and thickness of the films increased with increasing glycerol concentration. Increasing the concentrations of the peanut oil and soybean lecithin decreased the thickness and increased the moisture content of the films. The combination of glycerol and peanut oil increased the WVP of the films, whereas addition of soybean lecithin had no effect. The lowest WVP values were obtained using 25% glycerol, 5% peanut oil and 5% soybean lecithin. Starch obtained from improved cassava varieties cultivated in Côte d'Ivoire can be a potential ingredient in the production of food packaging.

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“…De forma geral, os filmes biodegradáveis se caracterizam por serem materiais higroscópicos, ou seja, sensíveis à umidade do ar, o que afeta suas propriedades mecânicas, limitando suas aplicações comerciais (ANDREUCCETTI; CARVALHO; GROSSO, 2010;DIAS et al, 2013;GENNADIOS et al, 1994). Em busca de melhorar as propriedades físicas dos filmes biodegradáveis, diferentes alternativas têm sido estudadas, tais como a utilização de novos plastificantes, hidrofílicos (ex.…”

Section: Introductionunclassified

Propriedades físicas de filmes à base de biopolímeros reforçados com laponita

Valencia¹

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The environmental problems caused by packaging based on non-biodegradable synthetic materials have lead to a significant increase in studies about biopolymer films. However, these films have limited physicochemical properties due mainly to its sensitivity to ambient relative humidity. Among the alternatives studied to improve the physicochemical properties of these materials is the use of nanoparticles, especially the montmorillonite, which has problems of dispersion in water. Another nanoparticle no so much studied in films based on biopolymers is laponite, which is a synthetic nanoparticle. Thus, this these aims to development and characterize films based on biopolymers (collagen, gelatin and cassava starch), with a nanoparticle (laponite). The effects of biopolymer and laponite concentrations were studied, as well as, the film production method (casting and spreading), besides the quality of laponite dispersion and its relationship with the physicochemical properties of the films were investigated, with special interest on the surface properties. The films were produced by the dehydration of filmogenic-forming solutions (FFS), with 2, 4 or 8 g of biopolymer/100 g FFS; 25 or 30 g glycerol/100g of biopolymer; and 0, 1.5, 3, 4.5 and 6 g of laponite/100g of biopolymer. The laponite was dispersed in water using ultraturrax, at 20,000 rpm, for 30 minutes. The laponite particles in water had sizes smaller than 50 nm. There was not effect of biopolymer concentration and film production method (casting or spreading) on the surface and physicochemical properties studied in the nanocomposite films. X-ray analysis and Fourier transform infrared spectroscopy revealed that laponite platelets were exfoliated and/or intercalated in the films, and that there were no formed chemical bonds between laponite platelets and the biopolymers studied. The presence of laponite increased the surface irregularity of the films, especially in those produced with collagen and cassava starch. Other properties in the nanocomposite films, such density, moisture content, color, opacity, thermal properties, mechanical properties, water solubility, water contact angle, sorption isotherms and water vapor permeability were not altered by the presence of laponite.

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Effect of the addition of soy lecithin and Yucca schidigera extract on the properties of gelatin and glycerol based biodegradable films.

Cited by 10 publications

References 23 publications

Gelatin capsule waste: new source of protein to develop a biodegradable film

Gelatin capsule waste: new source of protein to develop a biodegradable film

Water Vapor Permeability of Edible Films Based on Improved Cassava (Manihot esculenta Crantz) Native Starches

Propriedades físicas de filmes à base de biopolímeros reforçados com laponita

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