الفهرس 
MATERIAL AND METHODSOnly 14 pages are availabe for public view
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Abstract
The general objective of the present study was to investigate fish products quality as measured by microbiological and chemical parameters during frozen storage. So a total of 90 random samples of battered breaded fish products represented by fish pane, fish fingers and fish nuggets (30 of each) were collected from different supermarkets in Kalyoubia governorate. Each sample was kept in a separated sterile plastic bag and preserved in an ice box then transferred to the laboratory under complete aseptic conditions without undue delay and examined as quickly as possible. The collected samples were subjected to the bacteriological and chemical examinations to evaluate their quality.
Sensory Evaluation revealed that the mean sensory panel score for color, adhesion, texture and over all acceptability were 2.96, 2.93, 2.88 and 2.92 for fish panne, 2.90, 3.13, 2.67 and 2.90 for fish fingers and 2.93, 3.16, 2.56 and 2.89 for fish nuggets respectively.
Chemical examination revealed that the mean values of pH of fish pane, fish finger and fish nuggets were of 6.64± 0.01, 6.69± 0.01 and 6.75± 0.02 respectively.The mean values on total volatile nitrogen were 6.97 ± 0.25, 9.51 ± 0.37 and11.82 ± 0.29 mg/100gm for fish pane, fish finger and fish nuggets respectively.The mean values of Thiobarbituric acid for fish pane, fish finger and fish nuggets were 0.13 ± 0.01, 0.19 ± 0.01 and 0.24 ± 0.01 respectively.
Bacteriological Examination revealed that the mean value of Aerobic plate count (cfu/g) of fish pane, fish finger and fish nuggets were of 1.07×104± 0.35×104, 8.33×104± 1.04×104 and 2.61×105± 1.73×105 respectively. concerning Enterobacteriacea count of fish pane, fish finger and fish nuggets were 3.72×103 ± 0.56×103 (63.33%), 8.85×103 ± 2.11×103 (76.67%) and 6.59×104 ± 1.47×104 (83.33%) respectively. The isolated Enterobacteriacea from fish pane were Citrobacterdiversus (13.33%), Citrobacterfreundii (3.33%), Enterobacteraerogenes (30.00%), Enterobactercloacae(20.00%)Klesriellaozaenae(23.33%).