Edible kefiran films as vehicle for probiotic microorganisms

摘要

In the presented work, we have developed edible kefiran films containing Lactobacillus plantarum CIDCA 8327 and Kluyveromyces marxianus CIDCA 8154. Thickness, moisture content and optical properties of films were not altered by the incorporation of microorganisms. During the film obtaining, lactobacillus concentration decreased one logarithmic cycle and no loss on yeast viability was detected. Both microorganisms included in glycerol plasticized kefiran films successfully maintained their viability during storage. After 35 days at 20 degrees degrees C L. plantarum viability decreased less than 13 logarithmic cycles and K. marxianus 0.7 logarithmic cycles.