Caracterização físico-química de filmes comestíveis de amido adicionado de acerola (Malphigia emarginata D.C.)

Abstract

Edibles flms are an alternative to synthetic materials used for packing food products. Barbados cherry is rich in vitamin C and carotenoids. The aim of this study was to characterize and develop flms by casting from cassava starch, lyophilized Barbados cherry pulp and glycerol. The flms were characterized with respect to thickness, water vapor permeability (WVP), water solubility, vitamin C, β carotene and mechanical properties. The interaction of pulp and glycerol reduced flm thickness. An increase in pulp concentration up to 60% increased WVP but beyond this concentration reduced both WVP and solubility leading to an increased level of vitamin C and β carotene in the flms.