New Findings in Veterinary Microbiology

New Findings in Veterinary Microbiology

Investigating the bacterial contamination of farmed white shrimp (Litopenaeus vannamei) in Bushehr province and the effect of the freezing process on its microbiological and physicochemical characteristics

Document Type : Original Article

Authors
1 Master's student, Department of Food Science and Engineering, Safadasht Branch, Islamic Azad University, Tehran, Iran
2 Assistant Professor, Department of Food Science and Industry, Safadasht Branch, Islamic Azad University, Tehran, Iran
Abstract
Shrimp is one of the important food sources for humans. Food poisoning caused by eating seafood and shrimp is an important risk to human health. Therefore, the purpose of this study to investigate the bacterial contamination of Pasfid shrimp in Bushehr province and the effect of freeze process on its microbiological and physicochemical characteristics. 120 shrimp samples were randomly selected and transferred to the laboratory to evaluate the microbial load and chemical status. SPSS version 21 software and Duncan's comparison test were used for data analysis at a significant level of P<05.00. The results showed that the contamination rate for Escherichia coli was 13.35%, Salmonella 14.18%, Staphylococcus aureus 45.83%, Listeria 10.83% and Vibrio 13.35%. The analysis showed that there was no significant relationship between different microorganisms and the percentage of contamination. According to the results of the statistical analysis of 120 samples of shrimp cultivation in the culture medium and the results that were analyzed showed that the amount of TVN in four cases of storage methods had a significant difference, also the lowest and the highest amount of TVN according to the sample The packages were frozen in the tunnel immediately. The results of coliform contamination showed that the amount of coliform load in four investigated cases was less than 100 CFU/g and within the standard range (less than 100 CFU/g). Considering the high contamination that all the samples had with pathogenic microorganisms; The application of strict regulations by regulatory organizations should be increased to ensure the health of people and society.
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Subjects


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Volume 7, Issue 1
May 2024
Pages 122-133

  • Receive Date 06 February 2024
  • Revise Date 12 March 2024
  • Accept Date 11 May 2024