Storage stability of vacuum-packaged hot-smoked Rainbow trout (Oncorhynchus mykiss) fillets: color and texture aspects (In Greek)
Authors: Eleftheriadou, A; Eleftheriadou, A; Vareltzis, K; Vareltzis, K; Ambrosiadis, I; Ambrosiadis, I; Georgakis, Sp.; Georgakis, Sp.
Source: Journal of the Hellenic Veterinary Medical Society, Volume 52, Number 2, April - June 2001 , pp. 119-125(7)
Publisher: Hellenic Veterinary Medical Society
Abstract:The aim of this research was to investigate some problems related to Rainbow trout's (Oncorhynchus mykiss) hot-smoking process as well as the color texture evaluation of the final product. The skin-on and skin-off fillets were hot-smoked and kept in vacuum-packed storage at 2°C±0.1. Color and texture measurements and biochemical analysis were carried out during 120 days of storage on days 1, 45, 75 and 120. The results have showed no significant differences between skin-on and ski-off fillets in carotenoids and retinol content. This values were reduced from 0,4-0,5 and 0,08-0,10 mg/g (1st day) to 0,2 and 0,04 mg/g by day 45 respectively. Thereafter they remained unchanged until the end of the storage. However, they were proved sufficient for the stability of the red color of the finalproduct, as the a* value remained fairly constant, during the whole storage period. Significant differences between skin-on and skin-off fillets were observed in their external surface color. Both L* and a* values were lower in skin-off fillets and this is probably attributed to the more intense dehydration and absorption of the smoke constituents in this fillets. More over, the filleting of raw material before processing, resulted in both complete absence of fishgapping in the endproduct and satisfactory texture, which remained the same during the whole storage period.
Document Type: Research Article
Publication date: 2001-04-01
- J Hellenic Vet Med Soc is covered by THOMSON REUTERS Science Citation Index Expanded & Journal Citation Reports/science edition J Hellenic Vet Med Soc is a Quarterly Journal and it is the only scientific veterinary journal in Greece which is published in English and Greek language. It publishes exclusively original scientific papers, research, original and review articles, short communication, retrospective study of case reports as well as special articles, covering all fields of the veterinary science. Its scope is to disseminate the updated veterinary knowledge among its members and to encourage veterinarians to write and publish scientific papers. Submitted articles are always peer reviewed by academic scientists and experienced practitioners, who hold postgraduate titles (MSc, MPhil, PhD, Diplomates etc) and are specialists in their fields.
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