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IRI activity of bacterial strains. The protein extracts were exposed to −6 °C for 48 h to measure their absorbance at 500 nm. Each value is a mean ± SD of 6 independent replicates. Significant differences were analyzed by one-way ANOVA followed by the LSD Fisher test. Means with different letters indicate significant differences (p < 0.05). Abbreviations: NC, negative control (E. coli JM109); PC, positive control (Type III AFP); IRI, ice recrystallization inhibition.
