Dergiler / Turkish Journal of Biology / 1998 / Cilt: 22 - Sayı: 1

Carotenoid Pigments Stabilization in the Fillet of Rainbow Trout (Oncorhynchus mykiss) During Frozen Storage

Sayfa
61–66
DOI
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Özet

In this study, changes in the total carotenoid content of the fillet of rainbow trout, pigmented with astaxanthin supplemented diet, stored at -20ºC, in vacuum packaging for 2, 4 and 8 month periods were inverstigated. Total carotenoid concentration of the fillets did not change during the first two month storing period but the loss was 1.58 % and 3.58 for the 4 th and 8 th months, respectively. Yet, these changes were not signigicantly different than the level measured at the beginning of the experiment (P>0.05). It is concluded that carotenoid losses from the flesh do not affect the quality of the fillet and consumer demand.

Abstract

In this study, changes in the total carotenoid content of the fillet of rainbow trout, pigmented with astaxanthin supplemented diet, stored at -20ºC, in vacuum packaging for 2, 4 and 8 month periods were inverstigated. Total carotenoid concentration of the fillets did not change during the first two month storing period but the loss was 1.58 % and 3.58 for the 4 th and 8 th months, respectively. Yet, these changes were not signigicantly different than the level measured at the beginning of the experiment (P>0.05). It is concluded that carotenoid losses from the flesh do not affect the quality of the fillet and consumer demand.

Anahtar kelimeler: rainbow trout, Oncorhynchus mykiss, colour, carotenoid, stabilization