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    Response surface methodology for optimisation of edible coatings based on dextran from Leuconostoc mesenteroides T3

    Year: 2018

    Journal: Carbohydr. Polym., Volume 184, nov-15, page 207–213

    Authors: Davidovic, Sladana; Miljkovic, Miona; Tomic, Milos; Gordic, Milan; Nesic, Aleksandra; Dimitrijevic, Suzana

    Organizations: Ministry of Education, Science and Technological development of the Republic of Serbia [TR 31035, III43009]

    Keywords: Dextran; Edible coating; Response surface methodology

    The aim of this study was to develop dextran-based edible films plasticized by sorbitol. In order to optimise the film-forming formulation, response surface methodology was used. The influence of dextran and sorbitol concentration on the mechanical and water vapour barrier properties of obtained films was investigated. The results showed that both parameters exhibited significant effect on the water vapour permeability of a film. Both dextran and sorbitol concentration had significant influence on tensile strength and elongation at break, whereas only sorbitol concentration had significant effect on Young's modulus. After optimisation by desirability approach, it was found that a film made of 3.40 wt% of dextran and 20.43 wt% of sorbitol showed the lowest water vapour permeability and the highest tensile strength and elasticity.
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