Determination of the quality parameters of pike perch <Emphasis Type="Italic">Sander lucioperca</Emphasis> caught by gillnet,longline and harpoon in Turkey |
| |
| Authors: | Gülsün Özyurt Yesim Özogul Caner Enver Özyurt Abdurrahman Polat Fatih Özogul Cengiz Gökbulut Beyza Ersoy Esmeray Küley |
| |
| Institution: | Department of Fishing and Fish Processing Technology, Faculty of Fisheries, Cukurova University, Adana, and;Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Adnan Menderes University, Isikli Koyu, Aydin, Turkey |
| |
| Abstract: | ABSTRACT: The effects of the different catching methods (gillnet, longline, harpoon) on sensory, chemical (pH, total volatile base nitrogen, K -value) and microbiological (total viable count TVC]) changes in pike perch Sander lucioperca stored in ice were investigated. The same soaking time was used for both gillnet and longline fishing. The catching method had considerable influence on the freshness quality of pike perch. The acceptable shelf life was 15 days for pike perch caught by gillnet, and 22 days for longline and harpoon. The initial concentrations of inosine monophosphate (2.4 μmol/g) in pike perch caught by gillnet were significantly lower ( P < 0.05) than longline (4.1 μmol/g), and especially by harpoon (16.7 μmol/g). However, the initial K -values for fish caught by harpoon were significantly ( P < 0.05) lower (24.36%) than fish caught by longline and gillnet (57.69%, 64.41%, respectively). The average K , Ki, G and H -values at rejection day in terms of sensory assessment were approximately 90, 98, 156 and 40%, respectively, for all catching methods during ice storage. However, TVC reached 7.0 log cfu/g after approximately 11 days of storage for fish caught by gillnet, 19 days for fish caught by longline and 8 days for fish caught by harpoon. The result of this study suggests that the best catching method for preserving the freshness of pike perch is longline, based on the data obtained from the sensory and microbiological analysis. |
| |
| Keywords: | catching methods gillnet harpoon longline pike perch storage life |
| 本文献已被 SpringerLink 等数据库收录！ |
|
