The available database comprises research projects in Fisheries, Aquaculture, Seafood Processing and Marine Biotechnology active in the time period 2003-2022.
BlueBio is an ERA-NET COFUND created to directly identify new and improve existing ways of bringing bio-based products and services to the market and find new ways of creating value from in the blue bioeconomy.

More information on the BlueBio project and participating funding organizations is available on the BlueBio website: www.bluebioeconomy.eu

Last Update: 2024/06/19

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Seafood Processing
Fisheries
Conversion factors for Estonian caught baltic sprat (Sprattus sprattus balticus) and baltic herring (Clupea harengus membras)
National Programme
National
Loreida Timberg
loreida@vurts.ee
NA
NA
2018
2019
€ 10,080
https://www.etis.ee/Portal/Projects/Display/e18d5dd0-321b-468e-ad2f-9d6cfbe4ba0f
Sprat and herring stored in saline solutions water and salt content increased. Water diffuses into the fish and as a result fish proteins will swell, which increases the weight of the fish. Salt ions (Na+ and Cl-) from saline solution will interact with fish proteins and water holding capacity of proteins will increase thus enabling fish weight to increase further. Whereas saline solutions concentration was low, and storage days number was also low (same used to transport fish from the see to the land), thus it was not possible to demonstrate that weight change of fish was statistically significant. pH changes indicated that sprat and herring quality properties decreased faster while fish was stored in air and in ice than in saline solutions. Storage in saline solutions had a positive effect on shelf life of sprat and herring, because quality index measured by sensory analysis changed considerably slowly. According to results and considering seasonality and biological variation of fish, the conversion factor for sprat and herring, stored in saline solutions up to 0,5% (included) should be 1,00. Based on fact that fish weight difference on all storage methods via shelf life days was not statistically significant, thus it is not possible to verify scientifically that conversion factor should anything else but 1.
Fish; Storage; Fish quality; Sprat; Herring;
Gulf of Finland (27.IIId.32) Archipelago Sea (27.IIId. 29) East of Gotland or Gulf of Riga (27.IIId.28)
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