Sürdürülebilir Kalkınma Amaçları

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• MakaleYalnız künye2012Scopus SJRQ2/r/munzur/4561
  Ozone Disinfection of Eggs from Gilthead Seabream Sparus aurata, Sea Bass Dicentrarchus labrax, Red Porgy, and Common Dentex Dentex dentex

  Can, Erkan; Karacalar, Ulviye; Saka, Sahin; Firat, Kursat

  The risk of fish pathogen transmission via eggs can be reduced by disinfection in ozonated seawater. The aim of this study was to determine the suitable conditions for ozone disinfection of the eggs of gilthead seabream Sparus aurata, sea bass Dicentrarchus labrax, red porgy Pagrus pagrus, and common dentex Dentex dentex. The eggs were disinfected with a concentration (C) of 0.5 mg of ozone/L of water at four different exposure times (T = 2, 4, 8, and 16 min). The hatching rate was determined in triplicate for each treatment. Bacterial colonies were counted on tryptic soy agar and thiosulfate-citrate-bile salts-sucrose agar. At the end of the experiment, bacterial load and hatching rate were assessed together to determine the optimal ozone treatment values, which were estimated in CT units (i.e., C [= 0.5 mg/L] x T [min]). Optimal values were CT 2-4 (T = 4-8 min; 18 degrees C) for gilthead seabream and red porgy, CT 2 (T = 4 min; 18 degrees C) for common dentex, and CT 4 (T = 8 min; 15 degrees C) for sea bass.

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  AtıfWoS6·OpenAlex8

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• MakaleYalnız künye2010Scopus SJRQ3/r/munzur/4350
  Disinfection of Gilthead Sea Bream (Sparus aurata), Red Porgy (Pagrus pagrus), and Common Dentex (Dentex dentex) Eggs from Sparidae with Different Disinfectants

  Can, Erkan; Saka, Sahin; Firat, Kuersat

  The aim of this study is to determine suitable conditions for egg disinfection of gilthead sea bream (Sparus aurata), red porgy (Pagrus pagrus), and common dentex (Dentex dentex) with glutaraldehyde, hydrogen peroxide and iodine. The eggs were disinfected with 200 ppm glutaraldehyde (T= 2, 4, 8, 16 min), 300 ppm hydrogen peroxide and iodine (T= 5, 10, 15, 20 min) at four different contact times. The hatching rate was determined in triplicates for each treatment. Also, bacteria colonies were counted on tryptic soy agar (TSA) and thiosulphate citrate bile salt sucrose agar (TCBS). At the end of the experiment, bacterial load and hatching rate were assessed together. For glutaraldehyde treatment, optimal hatching rates and bacterial colonies were estimated as CT (Disinfectant concentration in mg.l(-1)* exposure time in minute) 800 for sea bream eggs, CT 1600 for red porgy eggs and CT 800-1600 for common dentex eggs. Also, for hydrogen peroxide treatments, they were determined as CT 3000 for sea bream and red porgy and CT 4500 for common dentex. Finally, in iodine treatments, these parameters were measured as CT 4500-6000 for all species' eggs. However, in our study, it is clear that the glutaraldehyde showed the optimum disinfection effect against the microorganisms because the bacteria could be eliminated completely.

  AtıfWoS12

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