Probiotic Coating for Ripened Cheeses With Lactobacillus Acidophilus and Lactobacillus Helveticus Inclusion

Edible films have been employed to improve the food quality. Thus, the objective of this study was to evaluate the edible coverage as a vehicle for probiotics bacteria in cheeses. The experimental design was completely randomized containing four treatments: uncoated cheeses, sodium alginate coated cheeses, sodium alginate + Lactobacillus acidophilus coated cheeses and sodium alginate + Lactobacillus helveticus coated cheeses, analysed for 15 days. The parameters of water steam permeability, thickness and Young's modulus were significant. In the simulation of gastrointestinal conditions, there was a reduction in lactic acid bacteria. There was a reduction in coliform values in coated cheeses. In the identification using Random Amplified Polymorphic DNA technique, Lactobacillus helveticus strains were isolated, suggesting the microorganism migration to inside the cheese. Scanning electron microscopy showed that the lactic acid bacteria were distributed throughout the surface of the edible coating. It suggested the Lactobacillus helveticus permeability added in the cover to the cheese interior, ensuring that the cover can be a vehicle for dairy bacteria.

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