The objective of the research was to test the antimicrobial potential of biodegradable film of soy protein isolate with locust bean gum and clove essential oil. It was tested 0.1, 0.3 and 0.5 % concentrations of clove essential oil the film. The results of the study indicate that there was inhibitory activity against the bacteria Listeria monocytogenes and Salmonella Typhimurium and inhibition of sporulation of the fungi Aspergillus oryzae and Penicillium oxalicum of soy protein isolate films containing 0.5 % of clove essential oil. From the observations, it is possible to affirm the applicability of clove essential oil as a natural preservative incorporated in biodegradable packaging, in addition to being used with the function of packaging, prevention and control of contaminants in food. There is a tendency to reduce the use of chemical additives in the food industry and the use of biodegradable packaging with natural preservative is a sustainable substitute for conventional plastics.

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