Standardization of sodium metabisulfite solution concentrations and immersion time for farmed shrimp Litopenaeus vannamei

Ciência Rural

Magnani, Marciane³  Araújo, Nkarthe Guerra⁴  Ventura, Ana Paula Moraes³  Andrade, Luciana Trigueiro de¹  Cavalheiro, José Marcelino de Oliveira³  Lira, Andréa de Lucena² 

[1] Instituto Federal de Educação, Ciência e Tecnologia da Paraíba, Cabedelo, Brazil;IFPB, João Pessoa, Brazil;UFPB, João Pessoa, Brazil;Universidade Federal da Paraíba, João Pessoa, Brazil

关键词: sulfur dioxide;    edible muscle;    farmed shrimp;   

DOI  :  10.1590/0103-8478cr20140806

学科分类：农业科学（综合）

来源: Universidade Federal de Santa Maria * Centro de Ciencias Rurais

【 摘 要 】

Sodium metabisulfite is the main additive used in the prevention of melanosis in shrimp; however, it has currently been employed with great variation in concentration by producers. Thus, the aim of the present study was to determine the correlation between the concentration of the sodium metabisulfite solution and immersion time of the whole shrimp to obtain the concentration of sulfur dioxide (SO2) in the edible muscle of farmed shrimp (Litopenaeus vannamei) in accordance with the limit established by law. For this, solutions of sodium metabisulfite at different concentrations (1%, 2 %, 3 %, 4% and 5%) were prepared and samples of L. vannamei shrimp (100g) were immersed during 10, 20 or 30 minutes at temperature of 7°C. For all treatment assayed the concentration of SO2 was determined in the edible muscle of farmed shrimp (L. vannamei). The results show that for the conditions used in this study, the correlations were linear, with significant increase (P<0.05) in the SO2 concentration in the edible muscle of shrimps both increasing sodium metabisulfite concentration as increasing immersion times, suggesting the immersion of shrimps in a 3% solution for a time of 13 minutes in order to obtain SO2 concentration of 100ppm in its edible muscle in accordance with Brazilian legislation

【 授权许可】

Unknown