Qualidade sanitária do camarão salgado e seco comercializado no Mercado Municipal de Cruz das Almas, BA

Abstract

Dried and salted shrimp is very appreciated and used in preparation of typical dishes from Bahia, for example, acarajé. Despite the dried and salted shrimp has low water activity due to the presence of salt and drying, hygienic-sanitary failures during its processing contribute to its contamination. Thus, the aim of this study was evaluate to microbiological quality of dried and salted shrimp commercialized in the municipal market of Cruz das Almas/BA, using aerobic mesophilic heterotrophic bacteria, yeasts and molds and coliform group as bioindicators. Twenty samples of dried and salted shrimp obtained in municipal market during the period from November 2012 to January 2013 were analyzed. The viable count of aerobic mesophilic heterotrophic bacteria ranged between 1.48 x 103 CFU/g and 1.00 x 107 CFU/g. Of all samples analyzed, 9 (45%) have presented aerobic mesophilic bacteria count > 105, in other words, a limit in which can compromise the microbiological quality. The samples of shrimp presented low count of yeast and mold (<1.00 x 101 a 5.00 x 102 CFU/g) and coliforms at 45oC (<3.00 a 2.30 x 101 MNP/g). Escherichia coli was not detected in any of samples analyzed. According to Brazilian legislation that establishes a limit of 103 MNP/g to coliforms at 45oC, the samples of shrimp are acceptable for consumption. The same legislation does not establish microbiological standards for others microorganisms analyzed, but the high presence of these microorganisms demonstrates poor hygiene sanitation, especially the non-adoption of good manufacturing practices. Dried and salted shrimp commercialized in Cruz das Almas can be consumed without risk to consumers.