Abstract
ABSTRACT: Histamine and biogenic amine contents in retail canned anchovies were determined. Bacterial strains were isolated, and their histamine-producing capability was determined. The majority of canned anchovy products (80%) had histamine levels below the FDA guideline of 50 ppm. The sensory quality of products was relatively good. A few samples contained high levels of histamine (>1000 ppm). Overall, histamine contents in the products showed great lot-to-lot variations. Spermine and tyramine were commonly detected in all samples analyzed, regardless of their histamine contents. Bacterial counts in the products were mostly below the detection limit (102 CFU/g), and bacteria were frequently recovered with the enrichment of test samples in tryptic soy broth supplemented with 0.5% or 5% NaCl. Only Bacillus spp., the nonhistamine formers, were isolated from these test products. Prolific histamine-forming bacteria were not detected in these canned anchovies.
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