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  • Title: Development of non-water soluble, ductile mung bean starch based edible film with oxygen barrier and heat sealability.
    Author: Rompothi O, Pradipasena P, Tananuwong K, Somwangthanaroj A, Janjarasskul T.
    Journal: Carbohydr Polym; 2017 Feb 10; 157():748-756. PubMed ID: 27987987.
    Abstract:
    This research determined the effects of starch concentration (3.5-5.0%w/w), and plasticizer [glycerol (0-30%w/w) or sorbitol (0-60%w/w)] on properties of mung bean starch (MBS) films. The result showed that increasing plasticizer concentration tended to decrease tensile strength (TS), elastic modulus (EM) and oxygen permeability (OP); but increase elongation (%E), solubility, water vapor permeability (WVP) and seal strength. The extent of those changes also depended on starch concentration. Glycerol provided better plasticizer efficiency than sorbitol. A bimodal melting endotherm of retrograded structure was evident in non-plasticized film. However, only a low temperature endotherm was observed in polyol-plasticized films, indicating a plasticizer-induced structural modification. The developed ductile MBS films, (TS of 7.14±0.95 to 46.30±3.09MPa, %E of 2.46±0.21 to 56.95±4.34% and EM of 16.29±3.40 to 1428.45±148.72MPa) with an OP of 0.2397±0.0365 to 1.1520±0.1782 ccmm/m2daykPa and seal strength up to 422.36±7.93N/m, demonstrated in this study indicate the potential for food packaging applications.
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