Comparative Evaluation of Wild and Farmed Rainbow Trout Fish Based on Representative Chemosensory and Microbial Indicators of Their Habitats

Mahmoud MAA, Magdy M, Tybussek T, Barth J, Buettner A (2023)

Publication Type: Journal article

Publication year: 2023

Journal

Journal of Agricultural and Food Chemistry American Chemical Society

DOI: 10.1021/acs.jafc.2c07868

Abstract

Wild and farmed rainbow trout were compared with chemical profiling, chemosensory properties, carbon concentration and isotope analyses, 1-and 2-GC/O-MS, GC-FID, and aroma profile analyses. Results were linked with the prokaryotic and eukaryotic microbiological profile of the fish sources using multivariate statistical analysis. Fish from natural environments proved to have better sensory properties in terms of fruity, sweet, and citrusy attributes, compared to farmed fish. However, the farmed fish were found to have higher nutritional value based on their lipid contents. These differences might relate to the introduction of feed extrudates, which could influence the overall quality of fish products. Thereby, malodor episodes linked to musty/earthy off-odor notes related to odorants including geosmin, beta-caryophyllene, (E,Z)-2,4-nonadienal, and (E,E)-2,4-nonadienal. These compounds, in turn, correlated with Asticcacaulis benevestitus, Curvibacter sp., Albidiferax sp., Aquabacterium commune, and Aquabacterium citratiphilum abundance and were further affected by oxygen levels in the water column.

Authors with CRIS profile

Johannes Barth Lehrstuhl für Angewandte Geologie

Involved external institutions

Fraunhofer-Institut für Verfahrenstechnik und Verpackung (IVV) DE Germany (DE) Ain Shams University EG Egypt (EG)

How to cite

APA:

Mahmoud, M.A.A., Magdy, M., Tybussek, T., Barth, J., & Buettner, A. (2023). Comparative Evaluation of Wild and Farmed Rainbow Trout Fish Based on Representative Chemosensory and Microbial Indicators of Their Habitats. Journal of Agricultural and Food Chemistry. https://doi.org/10.1021/acs.jafc.2c07868

MLA:

Mahmoud, Mohamed A. A., et al. "Comparative Evaluation of Wild and Farmed Rainbow Trout Fish Based on Representative Chemosensory and Microbial Indicators of Their Habitats." Journal of Agricultural and Food Chemistry (2023).

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