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MARINFORSK-Marine ressurser og miljø

Sustainable production of ingredients from whitefish rest raw materials

Alternative title: Bærekraftig produksjon av ingredienser fra restråstoff fra hvitfisk

Awarded: NOK 10.0 mill.

Project Number:

294539

Application Type:

Project Period:

2019 - 2023

Subject Fields:

The Norwegian fisheries industry produces around 300 000 tons of whitefish rest raw materials (RRM) each year. Marine RRM is a high value raw material rich in proteins, lipids and other important components (calcium, phosphorus, etc.) and can be used to produce ingredients for food and feed. I Norway, 85 % of the RRM is utilized. However, for the deep-sea fishing vessels the degree of resource utilization is only 24 %. This results in a significant loss in potential value creation from already harvested resources. The primary objective of SUPREME is to increase the resource utilization and value creation from processing of whitefish RRM from the Norwegian deep-sea fishing vessels into valuable ingredients. The research and innovation of SUPREME includes concepts for optimal handling and preservation of RRM (WP2), development of efficient logistics approaches (WP1), and technologies for bio-processing and RRM valorisation (WP3). In addition, pilot and industrial demonstrations of developed and optimized technologies will be carried out (WP4). The work in WP1 on supply chain mapping and logistics have resulted in a report on supply chain process mapping (https://doi.org/10.5281/zenodo.4498002) that gives a summary of the Norwegian fisheries industry, its current use of RRM and identifies potential alternatives for improved utilization. The report also provides benchmarking with the Icelandic seafood industry and presents case studies where concreate examples for improvements are shown. A total of 6 case study examples are provided with supply chain process mapping and identification of opportunities for improved utilisation of RRM. The report also introduces a methodology for evaluating valorisation options and prioritising them. The WP is currently focusing on data collection to evaluate valorisation options and identify optimisation logistics solutions in selected case studies. I cooperation between WP2 and WP3, a lab scale silage experiment was carried out using RRM from fresh saithe. The main objective of the experiment was to investigate how storage time, while storing viscera from white fish, affects the yield and quality of silage. Viscera with and without liver were used in the experiment to investigate how sorting and raw material composition affect quality and yields. Several different hydrolysis experiments have been carried out in WP3. Experiments with cod heads from the coastal fleet, line fleet and trawl were carried out in order to investigate whether the type of fishery affects the quality of the hydrolysate. Chemical and sensory analysis have been performed, and the sensory panellist detected only minor differences between the different hydrolysed fish proteins. In addition to silage and enzymatic hydrolysis as technologies for utilization of RRM, technology for production of taste neutral proteins have been tested. The produced protein samples were compared with commercially available proteins based on their composition and sensory properties. During the last year, researchers and students (PhD and exchange students) have joined two research cruises (MS Molnes and Helmer Hansen) and carried out activities within the SUPREME project (WP2, WP3 and WP4). Ultra-fresh RRM from cod and haddock were characterised and stored under different conditions (refrigerated, freezing and combinations of rest raw materials) to study the shelf-life and stability. Additionally, on-board experiments with thermal extraction of oil were done to study the effect of early inactivation of enzymes (WP2). A mapping and evaluation of the hydrolysis line on-board was performed on Molnes, in addition to several large-scale hydrolysis experiments with RRM from cod and haddock (WP4 and WP3). In addition, to demonstrate and test developed and improved solutions in pilot and industrial scale, WP4 is responsible for data gathering to perform a technical and economic analysis and a LCA analysis of different technological solutions for valorisation of whitefish RRM. Some data was gathered on the research cruise with Molnes, but there still some more data that need to be collected during the up-coming months.

The Norwegian fisheries industry produces around 340 000 tons of whitefish rest raw materials (RRM) each year. Marine RRM is a high value raw material rich in proteins, lipids and other important components (calcium, phosphorus, etc.) and can be used to produce ingredients for food and feed. However, in 2016 approximately 174 000 tons of whitefish RRM was discarded and not utilized, resulting in a significant loss in potential value creation from already harvested resources. The primary objective of SUPREME is to increase the resource utilization and value creation from processing of whitefish rest raw materials (RRM) from the Norwegian seagoing fleet into valuable ingredients. The results will provide the Norwegian industry with new market opportunities that would allow them to increase their market share and profitability. SUPREME will have a significant positive environmental impact by reducing the loss of RRM which are currently discarded. The research and innovation of SUPREME includes concepts for optimal handling and preservation of RRM (WP2), development of efficient logistics approaches (WP1), and technologies for bioprocessing and RRM valorisation (WP3). The concepts and methods developed will be demonstrated in selected pilot cases. SUPREME is focused along the strategic goals of the Norwegian government as well as the European Commission on increasing the resource utilization in food supply chains. The consortium consisting of leading research partners and an industry arena is expected to produce high-quality scientific results that will provide increased knowledge and utilization of RRM.

Publications from Cristin

Funding scheme:

MARINFORSK-Marine ressurser og miljø