Identificação de peixes comercializados em restaurantes de Maceió por meio da técnica de DNA Barcoding.

Abstract

Fish consumption has an outstanding nutritional importance, accounting for 17% of the animal origin protein consumed by the world population. Depending on the form of processing to which a specie of fish is submitted, its identification by the consumer depends completely on the information provided by the establishment where it was bought. The Fraud in identifying commercialized species is a common practice and consists in replacing one specie with another, usually of lesser commercial value. This work aims to investigate whether the practice of fraud also occurs in Maceió fish market. Samples commercialized in prepared form, obtained in restaurants in Maceió, were analyzed. Genetic identification was performed using the DNA barcoding technique. The rate of substitutions found in two years of research was 12%, being relatively low when compared to other studies.