Edible film production from chia seed mucilage: Effect of glycerol concentration on its physicochemical and mechanical properties

Dick, Melina; Costa, Tânia Maria Haas; Gomaa, Ahmed; Subirade, Muriel; Rios, Alessandro de Oliveira; Flôres, Simone Hickmann

doi:10.1016/j.carbpol.2015.05.040

Cited by 245 publications

(239 citation statements)

References 29 publications

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“…The ΔE values increased with increasing glycerol content. A similar trend of decreasing L values and increasing a and b values with increasing plasticizer concentration has been reported (Salamanca et al 2011;Dick et al 2015).…”

Section: Film Colorsupporting

confidence: 83%

“…The glycerol concentrations (1 to 5 wt%) tested in the present study were distinctly different from those in several related studies, as glycerol was added at loadings between 25 to 75 wt% to seed mucilage-based films (Ahmadi et al 2012;Jouki et al 2013;Khazaei et al 2014;Dick et al 2015). The differences in glycerol concentrations could be due to the differences in the film-forming solution formulations and the film development methods.…”

Section: Tensile Propertiescontrasting

confidence: 65%

“…Similarly reported, thicker mucilage or gum-based edible films were produced upon the addition of glycerol as a plasticizer (Ahmadi et al 2012;Jouki et al 2013;Khazaei et al 2014;Dick et al 2015). This increase in thickness was from the swelling process, in which the attractive force between the plasticized mucilage polymer and water increased (Jouki et al 2013;Khazaei et al 2014).…”

Section: Physical Observationmentioning

confidence: 60%

“…Recent studies on basil seed and chia seed mucilage-based film showed that the addition of plasticizer aided the formation of film with a notable reduction in the films' brittleness (Khazaei et al 2014;Dick et al 2015). 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.…”

Section: Introductionmentioning

confidence: 99%

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Development of Edible Film from Flaxseed Mucilage

Tee¹,

Wong²,

Tan³

et al. 2016

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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: Film Colorsupporting

confidence: 83%

Section: Tensile Propertiescontrasting

confidence: 65%

Section: Physical Observationmentioning

confidence: 60%

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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“…This could be due the hygroscopic nature of glycerol. Hydrogen bonds develop between flaxseed mucilage and hydroxyl groups along glycerol chains, which replace the interactions between mucilage molecules (Yang and Paulson 2000;Dick et al 2015). Thus, the change in moisture content reflected the formation of the glycerol-mucilage and glycerol-water interactions.…”

Section: Physical Propertiesmentioning

confidence: 99%

Chemical, Physical, and Barrier Properties of Edible Film from Flaxseed Mucilage

Tee¹,

Tee²,

Daengprok³

et al. 2017

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Chemical, physical, and barrier properties of flaxseed mucilage-based films were investigated to determine the appropriate applications for coating or packaging of food or bioproducts. The film samples were formed via casting with the addition of glycerol as a plasticizer up to a maximum of 5 wt.%. Fourier transform infrared (FTIR) spectra showed an increase of intensity in the -OH stretching vibration region and the appearance of a new peak at 2883.1 cm -1 in the plasticized film samples. These changes may indicate possible interactions between the mucilage and glycerol. With increasing glycerol concentration, the water activity decreased, while the moisture content and water solubility increased. With regard to barrier properties, the water vapour permeability (WVP) and oxygen permeability (OP) notably increased with increasing glycerol content. With these high WVP and OP values, the films can be potentially extended for coating or packaging fresh produce.

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