INHIBITORY EFFECT OF HEXYLRESORCINOL ON MELANOSIS AND DECOMPOSITION OF TRIMETHYLAMINE OXIDE (TMAO) IN SHRIMP ON ICE AND IN FROZEN STORAGE

Resumo

The occurrence of melanosis, or blackspot, in shrimp during icing or frozen storage is a serious problem leading to considerable commercial losses for Brazilian producers. Sulfites have been used to prevent the occurrence of blackspot, but have also been known to compromise the quality of the product. The present study evaluates hexylresorcinol as an alternative to sulfites. After thirty days of storage Southern brown shrimp (Farfantepenaeus subtilis) treated with hexylresorcinol were shown to develop very little melanosis. Furthermore, hexylresorcinol did not favor the formation of DMA and FA in the muscle tissue of the shrimp.