title: Effect of ozone pretreatment on fish storage life at low temperatures.
abstract: The purpose of the present study was to determine the effect of ozone pretreatment of live fish on their shelf life and storage characteristics during storage at 0 and 5 degrees C. The evaluation included sensory, chemical, physical, and bacteriological tests at set intervals throughout a storage period of 30 days under two temperature regimes (0 and 5 degrees C). The results of the sensory tests showed that ozone pretreatment of live tilapia prolonged their shelf life by 12 days and improved their quality characteristics during storage at 0 degrees C for 30 days. These results were corroborated by the bacteriological tests. The sensory qualities of ozone-treated tilapia stored at 5 degrees C became unacceptable 3 days later than those of control fish. Although the most important factor affecting the fish shelf life is storage temperature, the combination of ozone pretreatment with storage at 0 degrees C appears to be a promising means of prolonging the shelf life.
authors.affiliation: Kimron Veterinary Institute, Bet Dagan 50250, Israel. alexander_gelman@hotmail.com
authors.forename: A
authors.initials: A
authors.lastname: Gelman
authors.forename: O
authors.initials: O
authors.lastname: Sachs
authors.forename: Y
authors.initials: Y
authors.lastname: Khanin
authors.forename: V
authors.initials: V
authors.lastname: Drabkin
authors.forename: L
authors.initials: L
authors.lastname: Glatman
mesh_terms: D000818:Animals; D001419:Bacteria / Q000187:drug effects / Q000254:growth & development*; D003080:Cold Temperature; D015169:Colony Count, Microbial; D005511:Food Handling / Q000379:methods*; D005516:Food Microbiology; D005519:Food Preservation / Q000379:methods*; D010083:Oxidants, Photochemical / Q000494:pharmacology*; D010126:Ozone / Q000494:pharmacology*; D011786:Quality Control; D017747:Seafood / Q000382:microbiology* / Q000592:standards; D013649:Taste; D013997:Time Factors
chemical_list: D010083:Oxidants, Photochemical; D010126:Ozone