Liquid Side Streams from Mussel and Herring Processing as Sources of Potential Income
Journal article, 2023

The seafood industry generates significant amounts of process waters which can generate value upon recovery of their nutrients. Process waters from the herring marination chain and cooking of mussels were here characterized in terms of crude composition, volatile compounds, and nutritional and potentially toxic elements. Protein and total fatty acid contents of herring refrigerated sea water (RSW) reached 3 and 0.14 g/L, respectively, while herring presalting brine (13%) reached 16.3 g/L protein and 0.77 g/L total fatty acid. Among three herring marination brines vinegar brine (VMB), spice brine (SPB), and salt brine (SMB), SPB reached the highest protein (39 g/L) and fatty acids (3.0 g/L), whereas SMB and VMB at the most had 14 and 21 g protein/L, respectively, and 0.6 and 9.9 g fatty acids/L, respectively. Essential amino acid (EAA) in marination brines accounted for up to 59% of total amino acid (TAA). From mussel processing, cooking juice had more protein (14-23 g/L) than the rest of the process waters, and in all water types, EAA reached up to 42% of TAA. For all process waters, the most abundant nutritional elements were Na, K, P, Ca, and Se. The content of all potentially toxic elements was mostly below LOD, except for As which ranged from 0.07 to 1.07 mg/kg among all tested waters. Our findings shed light on liquid seafood side streams as untapped resources of nutrients which can be valorized into food/feed products.


Bita Forghani Targhi

Chalmers, Life Sciences, Food and Nutrition Science

Ann Dorit Moltke Sørensen

Technical University of Denmark (DTU)

Jens J. Sloth

Technical University of Denmark (DTU)

Ingrid Undeland

Chalmers, Life Sciences, Food and Nutrition Science

ACS Omega

24701343 (eISSN)

Vol. 8 9 8355-8365

Optimal utilization of seafood side-streams through the design of new holistic process lines (WASEABI)

European Commission (EC) (EC/H2020/837726), 2019-05-01 -- 2023-04-30.

Recovering values from aqueous herring processing side streams - AquaStream

Swedish Board of Agriculture (2016-844), 2017-05-01 -- 2019-09-30.

Subject Categories

Chemical Process Engineering

Polymer Technologies

Other Chemistry Topics





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