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Gamma-Irradiated Rosemary (Rosmarinus Officinalis) Dips Treatment Effect on Quality of Rainbow Trout (Oncorhynchus Mykiss) Fillets During Refrigerated Storage Publisher



Rezanejad R1, 2 ; Ojagh SM1 ; Heidarieh M2 ; Raeisi M3 ; Alishahi AR1 ; Rafiee GR4 ; Mousavi SH5 ; Nabizadeh S6
Authors
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Authors Affiliations
  1. 1. Department of Seafood Science and Technology, Faculty of Fisheries and Environmental Science, Gorgan University of Agriculture Sciences and Natural Resources, Gorgan, Iran
  2. 2. Nuclear Agriculture Research School, Nuclear Science and Technology Research Institute, Karaj, Iran
  3. 3. Cereal Health Research Center, Golestan University of Medical Sciences, Gorgan, Iran
  4. 4. Department of Fisheries, Faculty of Natural Resources, University of Tehran, Karaj, Iran
  5. 5. Kherad Institute of Higher Education, Tehran, Iran
  6. 6. Tehran University of Medical Science, Tehran, Iran

Source: Bulgarian Journal of Veterinary Medicine Published:2022


Abstract

The effect of the gamma-irradiated extract of rosemary and butylated hydroxyanisole (BHA) antioxidant on sensory, chemical and microbiological changes of rainbow trout fillets stored at 4 ± 1°C was investigated for 16 days. The fillets were divided into: control (C), 750 and 1500 rosemary extract (RE) (immersed in 750 and 1500 ppm rosemary extract); 250 and 500 gamma-irradiated rosemary (GIR), (immersed in 250 and 500 ppm gamma-irradiated rosemary) and 250 and 500 BHA (immersed in 250 and 500 ppm BHA). The shelf life of fillets was reported to be 8 days for C, and 12 days for 500 GIR group according sensory, microbiological and chemical parameters. The pH, peroxide value (PV), total volatile basic nitrogen (TVB-N), free fatty acid (FFA), thiobarbituric acid (TBA), psychrotrophic counts (PTC), and total viable aerobic bacterial counts (TVC) values were 7.62 ± 0.21, 17.17 ± 1.6, 51.07 ± 1.1, 6.05 ± 0.13, 3.42 ± 0.18, 12.03 ± 0.19, and 13.16 ± 0.16 respectively for C group and also, 7.42 ± 0.16, 15.2 ± 1.7, 42.5 ± 1.5, 4.48 ± 0.39, 2.59 ± 0.15, 9.98 ± 0.15, and 10.5 ± 0.15 respectively for 500 GIR group. Finally, the following trend in effectiveness was reported: gamma-irradiated rosemary PBS extract > BHA > rosemary PBS extract. © 2022, Trakia University. All rights reserved.
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