Effect of morphometric variables and natural microbial load on the survival time of live Mytilus galloprovincialis during postharvest cold storage

Microbial load and survival rate of Mytilus galloprovincialis

Authors

  • İbrahim Ender KÜNİLİ Department of Fishing and Processing Technology, Faculty of Marine Science and Technology, Çanakkale Onsekiz Mart University, 17020, Çanakkale, TÜRKİYE https://orcid.org/0000-0003-2830-6979
  • Selin Özge DİNÇ Department of Food Technology, Faculty of Applied Sciences, Çanakkale Onsekiz Mart University, 17020, Çanakkale, TÜRKİYE https://orcid.org/0000-0003-1597-1929
  • Umut ARABACIOĞLU Department of Fishing and Processing Technology, School of Graduate Studies, Çanakkale Onsekiz Mart University, 17020, Çanakkale, TÜRKİYE https://orcid.org/0009-0004-3286-8274
  • Yusuf Kaan ONGAN Department of Fishing and Processing Technology, School of Graduate Studies, Çanakkale Onsekiz Mart University, 17020, Çanakkale, TÜRKİYE https://orcid.org/0009-0001-5372-7516
  • Cengiz ÇELEN Department of Fishing and Processing Technology, School of Graduate Studies, Çanakkale Onsekiz Mart University, 17020, Çanakkale, TÜRKİYE https://orcid.org/0009-0007-4530-7443
  • Mahmut HİSAR Department of Fishing and Processing Technology, School of Graduate Studies, Çanakkale Onsekiz Mart University, 17020, Çanakkale, TÜRKİYE https://orcid.org/0009-0003-8349-2943

DOI:

https://doi.org/10.5281/zenodo.14566914

Keywords:

Mediterranean mussel, post-harvest storage, size-dependent survival, microbial dynamics, shelf life, morphometric traits

Abstract

This study investigated the relationships between morphometric characteristics, microbiological parameters, pH changes, and survival rates of Mediterranean mussels (Mytilus galloprovincialis) during post-harvest storage at +4°C. Mussels were categorized into three size groups based on shell length: large (63.92-80.19 mm), medium (48.51-62.63 mm), and small (30.08-47.75 mm). Total heterotrophic aerobic bacteria (THAB), Enterobacteriaceae, and Vibrio sp. counts were monitored over a 16-day storage period, along with pH changes and survival rates. Results demonstrated significant size-dependent variations in survival, with larger specimens showing superior viability throughout storage. THAB counts increased continuously across all groups, while Enterobacteriaceae levels remained relatively stable in medium and small groups. Vibrio sp. counts decreased in large specimens but remained stable in other groups. Strong negative correlations were observed between survival rates and both THAB (r: -0.854, p<0.001) and Enterobacteriaceae (r: -0.777, p<0.001) counts. Principal component analysis revealed that the first two components explained 83% of total variance, with physical dimensions primarily influencing PC1 (56.5%) and yield-related traits, pH, and THAB characterizing PC2 (26.5%). By day 16, medium and small groups reached 0% survival, while large specimens maintained partial survival. These findings suggest that mussel size significantly influences post-harvest survival and should be considered when developing storage protocols. Future research should focus on optimizing storage conditions through combined approaches of temperature control, modified atmospheres, and periodic water exposure, particularly considering morphometric variables.

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Published

2024-12-28

How to Cite

KÜNİLİ, İbrahim E., DİNÇ, S. Özge, ARABACIOĞLU, U., ONGAN, Y. K., ÇELEN, C., & HİSAR, M. (2024). Effect of morphometric variables and natural microbial load on the survival time of live Mytilus galloprovincialis during postharvest cold storage: Microbial load and survival rate of Mytilus galloprovincialis. MARINE REPORTS (MAREP), 3(2), 152–166. https://doi.org/10.5281/zenodo.14566914

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Vol. 3 No. 2 (2024): Marine Reports

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Research Article

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Copyright (c) 2024 İbrahim Ender KÜNİLİ, Selin Özge DİNÇ, Umut ARABACIOĞLU, Yusuf Kaan ONGAN, Cengiz ÇELEN, Mahmut HİSAR

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