Abstract
Enterocins 1071A and 1071B, produced by Enterococcus faecalis BFE 1071, kept the total aerobic cell numbers in fish spread between 8 x 104 and 2 × 10 5 cfu/g for the first 6 days of storage. The total aerobic cell numbers in a batch preserved with a combination of sodium benzoate (0.045%, w/w) and potassium sorbate (0.059%, w/w) remained between 8 x 10 4 and 2 x 10 5 cfu/g during the first 18 days of storage. In a batch containing no preservatives, cell numbers gradually increased from I x 10 5 to 1 x 10 8 cfu/g over 21 days. The spoilage organisms were identified as Staphylococcus epidermidis and atypical Proteus vulgaris. The pH of all batches remained constant over the 21-day storage period, with minimal variations recorded in textural and organoleptic qualities. The number of microbial cells recorded in fish spread preserved with enterocins 1071A and 1071B was 8 x 10 6 after 21 days of cold storage (4C), whereas microbial cell numbers of × 10 6 were recorded in fish spread that had not been preserved.
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