Abstract
The aim of this study was to increase shelf life of shrimps [Penaeus semisulcatus, (De Hann 1844)] found commonly in the mediterranean and aegean sea, by treating with different essential oils. Treated and vacuum packeged shrimp were examined as chemical and sensory within 0, 4, 8, 12, 16, 20, 24, days of refrigerated storage. At the limit of the pH acceptability, 8. days for control, 20. for carvacrol and 24. for thymol and eugenol groups, according to Total Volatile Basic Nitrogen (TVBN) values, 8. days for control, 16. for carvacrol, 20. for thymol and eugenol groups, regarding to Trimethylamine–Nitrogen (TMAN) values, 8.days for control, 16. for carvacrol, 20. for tymole and eugenol groups were completed the shelf life. The control extended the shelf life 8. for appearance and odor, 4. days for taste. Carvacrol group reached the shelf life 20. for apparence and odor, 16. for taste evaluation. The shelf life of eugenol group was at 24. for apparence, odor and 20. days for taste. In the respect to apperance and odor, taste, the tymole used group completed shelf life at 24. days. The result of sensory evaluation showed the similar shelf life related days with pH, TVBN, TMAN values. Tymole was advised for consumer due to higher sensory evaluation. It has been determined that there was not a study like this one on shrimp at literature in Turkey.
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