TOTAL CAROTENOID CONTENT OF SHRIMP COMMERCIALIZED IN FLORIANOPOLIS/SC AND EVALUATION OF COLOR PREFERENCE FOR CONSUMERS*

Alim, Nutr, Araraquara
unpublished
ABSTRACT: The aim of this work was to evaluate total carotenoids content in shrimp commercialized in Florianopolis, SC, Brazil and to analyze consumers' preference regarding to shrimp color. Samples of frozen (7) and fresh (7) shrimp from cultivation farms were obtained from fi sh market and public market. Total carotenoid content was determined spectophotometrically at 470mm. Concentration was calculated using astaxanthin standard curve. Two samples presenting the highest and the lowest total
more » ... carotenoids content were selected for sensorial analysis (30 consumers), and were analyzed in colorimeter in order to confi rm color differences visually observed. Total carotenoids levels for fresh and frozen shrimp were 0.44 ± 0.23mg/100g and 0.48 ± 0.24mg/100g, respectively. Regarding to consumers' preference, 90% (p<0,001) preferred deep orange sample (a* 17.0 and b* 31.3) rather than pale orange sample and low total carotenoid (a* 4.6 and b* 14.8). Deep orange shrimps were preferred by consumers, enhancing the carotenoids intake, especially astaxanthin.
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