Processing Mixed Mesopelagic Biomass from the North-East Atlantic into Aquafeed Resources; Implication for Food Safety

Foods

Veronika Sele¹  Marc H. G. Berntssen¹  Martin Wiech¹  Lars Thoresen²  Sissel Albrektsen²  Ragnhild Dragøy Whitaker³  Leif Grimsmo⁴  Eduardo Grimaldo⁴ 

[1]Institute of Marine Research, P.O. Box 1870 Nordnes, 5817 Bergen, Norway

[2]NOFIMA, Kjerreidvika 16, 5141 Fyllingsdalen, Norway

[3]NOFIMA, P.O. Box 6122 Langnes, 9291 Tromsø, Norway

[4]SINTEF Ocean, Brattørkaia 17C, 7010 Trondheim, Norway

关键词: mesopelagic;    contaminants;    trace elements;    arsenic;    fluoride;    organic pollutants;   

DOI  :  10.3390/foods10061265

来源: DOAJ

【 摘 要 】

Aquaculture produces most of the world’s seafood and is a valuable food source for an increasing global population. Low trophic mesopelagic biomasses have the potential to sustainably supplement aquafeed demands for increased seafood production. The present study is a theoretical whole-chain feed and food safety assessment on ingredients from mesopelagic biomass and the resulting farmed fish fed these ingredients, based on analysis of processed mesopelagic biomass. Earlier theoretical estimations have indicated that several undesirable compounds (e.g., dioxins and metals and fluoride) would exceed the legal maximum levels for feed and food safety. Our measurements on processed mesopelagic biomasses show that only fluoride exceeds legal feed safety limits. Due to high levels of fluoride in crustaceans, their catch proportion will dictate the fluoride level in the whole biomass and can be highly variable. Processing factors are established that can be used to estimate the levels of undesirables in mesopelagic aquafeed ingredients from highly variable species biomass catches. Levels of most the studied undesirables (dioxins, PCBs, organochlorine pesticides, brominated flame retardant, metals, metalloids) were generally low compared to aquafeed ingredients based on pelagic fish. Using a feed-to-fillet aquaculture transfer model, the use of mesopelagic processed aquafeed ingredients was estimated to reduce the level of dioxins and PCBs by ~30% in farmed seafood such as Atlantic salmon.

【 授权许可】

Unknown