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Original Articles

Sensory, Chemical, and Microbiological Attributes of Sea Bream (Sparus Aurata): Effect of Washing and Ice Storage

Pages 421-434 | Received 11 Dec 2005, Accepted 09 Jun 2006, Published online: 10 Aug 2007
 

Abstract

The effect of washing and refrigeration on the quality of sea bream (Sparus aurata) was studied by monitoring the microbiological, chemical, and sensory changes of washed samples with tap water and non-washed samples. Washing dramatically reduced populations of bacteria, namely aerobic mesophilic bacteria (6.4–6.2 log cfu/g for gutted sea bream and 6.6–6.1 log cfu/g for whole gutted sea bream), psychrotrophic bacteria (6.7–6.0 log cfu/g and 6.8–6.1 log cfu/g), and H2S-producing bacteria (6.4–5.4 log cfu/g and 6.7–5.5 log cfu/g) after 13 days of storage. Total volatile basic nitrogen (TVB-N) values showed no significant increase for all group of sea bream samples during storage. Of the chemical indicators of spoilage, trimethylamine (TMA) values of non-washed and washed sea bream increased very slowly and reached a final value of 1.35–1.47 mg/100 g (gutted fish) and 1.36–1.38 mg/100 g (whole fish), respectively (day 13). Sensory evaluation showed a good correlation with bacterial populations. On the basis of overall acceptability scores (sensory evaluation) a shelf-life of 12 days (washed and non-washed samples) was obtained for gutted and whole sea bream.

ACKNOWLEDGMENTS

This study was supported by the Research Fund of the University of Istanbul (Project No: UDP-591/12072005).

Notes

17. EC Regulation. Council Regulation (EC) N 2406/96 of 26 November 1996 Laying Down Common Marketing Standards for Certain Fishery Products. (OJ L 334, 23.12.1996) 1996; 1–15

22. Hungerford, J.M., Ed. AOAC Official Method 971.14 Trimethylamine Nitrogen in Seafood Colorimetric Method. Fish and Other Marine Products. In Official Methods of Analysis of AOAC International; Cunniff, P.; Ed.; 1998; 7.

42. 95/149/EG Entscheidung der Kommission vom 8. März 1995 über TVB- Grenzewerte für bestimmte Kategorien von Fischereierzeugnissen und die anzuwenden Analysemethoden. Amtsblatt nr. L 097 vom 29/04/1995, S.0084–0087.

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