Evaluation of the Antimicrobial Activity of Sea Cucumber (Holothuria Leucospilota) Extract on the Shelf-Life of Rainbow Trout (Oncorhynchus Mykiss) Fillets during Refrigerated Storage

Document Type : Research Paper

Authors

1 M.Sc., Department of Fisheries, Faculty of Natural Resources, University of Tehran, Karaj, Iran

2 Associate Professor, Department of Fisheries, Faculty of Natural Resources, University of Tehran, Karaj, Iran

3 Professor, Iranian Fisheries Research Organization, Tehran, Iran

Abstract

In this study, the antimicrobial effect of sea cucumber extract (0.5, 1 and 2%) on the microbial population of rainbow trout fillets during refrigerated storage was examined. Fillets were stored for 16 days and every 4 days microbial tests (including total bacterial load, Pseudomonas, Enterobacteriaceae and H2S producing bacteria) were performed on the samples. Results showed that there was no significant difference (P > 0.05) for the total bacterial load in all treatments during the storage time. For the samples treated with the extract, Pseudomonas, Enterobacteriaceae and H2S producing bacterial count was significantly (P < 0.05) lower than the control samples. Also among the different concentrations, 2% of the extract showed the highest antibacterial activity. The findings of this study showed that the sea cucumber extract could be a natural preservative for the storage of fishery products in the short-term storage in cold conditions. 

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Journal of Fisheries
Volume 69, Issue 1
June 2016
Pages 29-37

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