Chemical quality of marketed freshwater fish in Qualiobeya governorate,Egypt | ||
| Benha Veterinary Medical Journal | ||
| Article 6, Volume 38, Issue 1, March 2020, Pages 35-38 PDF (963.4 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/bvmj.2020.19854.1134 | ||
| Authors | ||
| Walaa Abdelazeem* 1; Mohamed Hassan2; Abd ElAziz Barr3 | ||
| 1Veterinarian | ||
| 2Food Hygiene and Control Department, Faculty of Veterinary Medicine, Benha University | ||
| 3Animal Health Research Institute, Tanta Lab | ||
| Abstract | ||
| Determination of changes in potential of hydrogen ( pH),total volatile nitrogen (TVN) and trimethylamine (TMA) in three types of fish (Oreochromis niloticus ,Clarias lazera and Mormyrus niloticus ) 30 of each collected from markets of El Qualiobeya governorate,Egypt. The results revealed that The mean value of pH in examined samples were 6.36 ± 0.05 ; 6.19 ± 0.03 and 6.07 ± 0.02 for Oreochromis niloticus ,Clarias Lazera and Mormyrus niloticus respectively. The mean value of Total Volatile Nitrogen (TVN) were 21.58 ± 0.49 mg% ; 16.73 ± 0.41 mg % and 14.15 ± 0.28 mg% for Oreochromis niloticus , Clarias Lazera and Mormyrus niloticus respectively. The un accepted samples were 16.67%, 6.67% and 3.33% in Oreochromis niloticus,Clarias lazera and Mormyrus niloticus respectively. Trimethyl Amine(TMA) values were 8.85 ± 0.22 mg% for Oreochromis niloticus; 6.61 ± 0.15 mg% for Clarias lazera and 5.97 ± 0.13 mg% for Mormyrus niloticus . The un accepted samples were 20% ,13.33% and 3.33% in Oreochromis niloticus, Clarias lazera and Mormyrus niloticus respectively. | ||
| Keywords | ||
| Potential of hydrogen; Total volatile nitrogen; Trimethylamine; Nile fish | ||
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