EDIBLE FILM FOR IMPROVING ESSENTIAL OIL RELEASE EFFICIENCY, AND PREPARATION METHOD THEREFOR

摘要

Disclosed are an edible film for improving the essential oil release efficiency, and a preparation method therefor. The edible film consists of at least one blank layer and at least one essential oil enrichment layer. During tape casting, the blank layer is used as a bottom layer, and the essential oil enrichment layer is located in an intermediate layer or an outer layer. The blank layer consists of a prolamin-water-soluble protein composite film. The essential oil enrichment layer consists of a prolamin-water-soluble protein composite film loaded with essential oil. According to the essential oil partition enrichment structure and method proposed by the present invention, the essential oil having the same mass is concentrated in a certain layer of the film. Compared with the existing edible film loaded with essential oil, the essential oil is loaded in the whole film matrix. The essential oil release efficiency can be improved by adjusting the number of layers of the film and the position of the essential oil enrichment layer without significantly changing the mechanical property and transmittance of the film, thereby effectively improving the antibacterial efficiency of an active film and reducing industrial production costs.