Pilot-Scale Antioxidant Dipping of Herring (Clupea harengus) Co-products to Allow Their Upgrading to a High-Quality Mince for Food Production
Artikel i vetenskaplig tidskrift, 2023

To enable production of high-quality mince from herring backbones, a scalable antioxidant strategy is needed due to the high susceptibility of herring muscle to lipid oxidation. We here measured the stabilizing effect of lab-/pilot-scale predipping of herring backbones (30-500 kg) in antioxidant solutions prior to production of mechanically separated mince (MSM). The antioxidants were (i) Duralox MANC, a mixture of rosemary extract, ascorbic acid, α-tocopherol, and citric acid, and (ii) rosemary extract with or without isoascorbic acid. Delivery of the key rosemary-derived antioxidant components carnosol and carnosic acid was monitored during the dipping process and ice/frozen storage. Predipping in 2% Duralox MANC gave MSM with 26.7-31.7 mg/kg carnosol + carnosic acid and extended the oxidation lag phase from <1 to 12 days during ice storage and from <1 to 6 months during frozen storage compared to control. Dipping in 0.2% rosemary extract with or without 0.5% isoascorbic acid solution gave MSM with 20.6-28.2 mg/kg carnosol + carnosic acid and extended the lag phase to 6 days and 9 months during ice and frozen storage, respectively. Our results confirmed, in pilot scale, that predipping herring coproducts in antioxidant solutions is a promising strategy to utilize these raw materials for, e.g., mince and burger production rather than for low value products as fish meal.

rosemary extract

fish by-products


rest raw materials

side streams

lipid oxidation



Haizhou Wu

Chalmers, Life sciences, Livsmedelsvetenskap

John Axelsson

Chalmers, Life sciences, Livsmedelsvetenskap

Martin Kuhlin

Sweden Pelagic AB

Rikard Fristedt

Chalmers, Life sciences, Livsmedelsvetenskap

Ingrid Undeland

Chalmers, Life sciences, Livsmedelsvetenskap

ACS Sustainable Chemistry & Engineering

2168-0485 (eISSN)

Vol. 11 12 4727-4737




Kemiska processer






Mer information

Senast uppdaterat