Avaliação da frescura do camarão comercializado nos mercados de Xiquelene e Xipamanine

Abstract

The generic term "fish" includes fish, crustaceans, molluscs, amphibians, chelonians and freshwater or saltwater mammals used for human consumption. In this perspective, second estimates by the Ministry of Fisheries, there was a significant growth in consumption and trade of fish and its products in the last 10 years. Shrimp represents an important segment of the fishing sector due, in particular, to the market value, its characteristics. and their sensory attributes, such as color, flavor, aroma and texture. Being one highly perishable food, during the stages of capture, handling and distribution, the Shrimp need to receive proper treatments to maintain proper conditions consumption and requires special care for marketing, conservation and industrialization. The aim of this work was to sensorially and physicochemically evaluate fresh shrimp sold in the Xiquelene and Xipamanine markets located in the city of Maputo. Samples were collected in two periods of the day (in the morning and in the afternoon). To do this, they were sensory analyses, pH analyzes and total nitrogenous volatile bases (quality physicochemical). Sensory analyzes found that the freshness of the harvested shrimp varied from good shrimp for the morning to regular shrimp for the afternoon, being Suitable for consumption. However, the physical-chemist showed huge divergences between the values ​​obtained and those found in the literature, however, despite the contrasts, the samples harvested in the morning for the two markets under study were presented within the standards required by national legislation for crustaceans. For shrimp harvested in the period late in March, the values ​​obtained exceeded those provided for by legislation, proving that factors such as handling, conservation and packaging during marketing are important points to be considered when verifying the physicochemical quality of this type of food. It is concluded, therefore, that the shrimp sold in the markets under study during the period of morning held in perfect condition, being fit for consumption. For samples taken in March in the afternoon in both markets, the results obtained suggest chemical quality unsatisfactory, incompatible for a product considered commercially fresh.(TRADUÇÃO NOSSA)