Qualidade de camarão (litopenaeus vannamei) minimamente processado

Abstract

This study aimed to investigate the influence of application of sodium lactate, lactic acid and citric acid on the physico-chemical and microbiological properties of the shrimp (Litopenaeus vannamei). The samples were submitted right after the collection, to minimum processing and two distinct treatments: no immersion in organic acids and sodium lactate solution (control) and immersion in biopreservatives solution (treated). The portions were vacuum packed and stored under refrigeration. During storage, physico-chemical analysis were performed, which consisted in hydrogenionic potential, water holding capacity, cooking weight loss and color in addition were also performed microbiological analysis for bacterial count including aerobic mesophilic and psychrotrophic on days zero, two and four, with three replicates per treatment. The data were evaluated by the Student t test at 5% significance level. The data showed the effectiveness of treatment to preserve the quality of shrimp. The results from physicochemical analysis showed a better result in the treatment group when compared to the control group, on the same way, the data from bacteriological analyzes showed a significant reduction of the microorganism growth in the treated group when compared to the control group.