Preparation, characterization of Auricularia auricula polysaccharide-based films and application in meat preservation

Abstract

In order to find a degradable biofilm，edible films of Auricularia auricula polysaccharide (AAP) were prepared and characterized optically, morphologically, and mechanically in terms of barrier, bactericidal, and antioxidant properties and evaluated for their potential application in cold meat packaging. The results showed that films prepared from 40 % AAP had the best mechanical properties, with smooth and homogeneous surfaces, good water barrier properties and also good preservation of cold meat. Thus, Auricularia auricula polysaccharide is a composite membrane additive with great potential for application.

Keywords: Auricularia auricula polysaccharide; Bacteriostasis; Edible film; Mechanical property; Microstructure.