Fresh-cut cantaloupes are highly susceptible to contamination by foodborne pathogens and spoilage-causing microorganisms. This study evaluated the efficacy of a probiotic coating produced by fermenting Lactiplantibacillus plantarum 299 V in pomelo peel extract in combination with vacuum packaging in controlling the microbial loads of fresh-cut cantaloupe during storage. As temperature abuse is common in transportation and at retail sale of such products in many countries, we evaluated their efficacy at different temperatures. Both the probiotic edible coating and vacuum packaging, when used alone, effectively inhibited microbial growth in fresh-cut cantaloupe at all the tested temperatures. The combination had a statistically significant synergistic effect (p < 0.05) on reducing psychrotrophic total counts (4.5 ± 0.3 log lower than control on day 9) and yeast and mold (>3.1 log lower than control on day 9) at 4°C, Listeria monocytogenes (2.9 ± 0.2 log lower than control on day 6) at 12°C, and yeast and mold (3.1 ± 0.7 log lower than control on day 2) and L. monocytogenes (4.6 ± 0.4 log lower than control on day 2) at room temperature (23 ± 2°C). The solution proposed in this study has the potential to increase the resilience of products to temperature abuse, which can impact the safety of the food supply.
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