Cristin-prosjekt-ID: 2502477
Sist endret: 1. desember 2021, 00:42

Cristin-prosjekt-ID: 2502477
Sist endret: 1. desember 2021, 00:42
Prosjekt

SafeKelp: Safe kelp for food and feed – controlling the transfer of iodine and arsenic through the value chain

prosjektleder

Åshild Gunilla Ergon
ved Norges miljø- og biovitenskapelige universitet

prosjekteier / koordinerende forskningsansvarlig enhet

  • Norges miljø- og biovitenskapelige universitet

Finansiering

  • TotalbudsjettNOK 5.000.000
  • Norges forskningsråd
    Prosjektkode: 320687

Klassifisering

Emneord

Algebiologi • Akvakultur • Ernæring • Sukkertare • Dynamisk modellering • Transkriptom • Gjødsel • Mattrygghet • Arsenikkforbindelser • Butare • Stressfysiologi • Jod-forbindelser

Kontaktinformasjon

Telefon
67232756
Sted
Åshild Ergon

Tidsramme

Aktivt
Start: 1. januar 2021 Slutt: 31. desember 2023

Beskrivelse Beskrivelse

Tittel

SafeKelp: Safe kelp for food and feed – controlling the transfer of iodine and arsenic through the value chain

Populærvitenskapelig sammendrag

Aquacultural production of kelp (a group of brown macroalgae) is on the rise worldwide and has great potential as both food and feed. Kelps contain several essential micronutrients but can also contain undesirably high levels of certain elements. In this project we study the content and fate of iodine and arsenic throughout value chains from cultivation to human food consumption, with the aim to facilitate management of food safety of this important resource.

 

The project is a collaboration between Norwegian and Chinese partners. We are focusing on the species Saccharina latissima (sugar kelp) and Alaria esculenta (winged kelp), which are cultivated in Norway, and S. japonica, which is cultivated in China. We will characterize environmental and genetic variation in content of iodine and arsenic, reveal relationships between iodine content and stress tolerance in kelp, study how iodine content in kelp is a function of irradiance and temperature, including genes involved in this. We will study how processing affects content of iodine and arsenic in kelp-based food and feed, and how iodine and arsenic from kelp is taken up, transformed and accumulating in humans and in farmed animals. We will determine availability, uptake and allocation in cereals fertilized with kelp processing residues and manure from kelp-fed animals. We will compare critical levels and food regulations of macroalgal iodine and arsenic in China and Europe and relate our results to critical levels for these elements. Communication of results to food safety authorities, kelp, food and feed industry and other stakeholders is an important part of the project.

Vitenskapelig sammendrag

Aquacultural production of kelp (a group of brown macroalgae) is on the rise worldwide and has great potential as both food and feed. However, kelps can contain high levels of potentially harmful elements, such as iodine and arsenic. The main objective of this Sino-Norwegian collaborative project is to obtain knowledge about the content and fate of iodine and arsenic throughout various value chains from cultivation of kelp to human food consumption, thereby facilitating management of food safety in the utilization of this important resource. The project has the following sub-goals: (1) Describe environmental and genetic variation incontent of iodine and arsenic in Saccharina japonica; (2) Reveal relationships between iodine content, stress, stress tolerance and function of vanadium-dependent haloperoxidases in S. japonica, S. latissima and Alaria esculenta; (3) Develop a dynamical model for iodine content in S.latissima as a function of irradiance and temperature; (4) Describe how processing affects content of iodine and arsenic in kelp in food and feed; (5) Develop models for uptake, bioaccumulation and transformation of iodine and arsenic from kelp in humans; (6) Describe uptake, bioaccumulation, transformation and allocation of iodine and arsenic in farmed animals given kelp-based feed; (7) Determine arsenic availability, and iodine and arsenic uptake and allocation in cereals fertilized with kelp processing residues and manure from kelp-fed hens; (8) Compare critical levels and food regulations of macroalgal iodine and arsenic in China and Europe; (9) Synthesize the results from the project and relate this to critical levels for iodine and arsenic; (10) Communicate results to food safety authorities, kelp, food and feed industry and other stakeholders.

prosjektdeltakere

prosjektleder

Åshild Gunilla Ergon

  • Tilknyttet:
    Prosjektleder
    ved Norges miljø- og biovitenskapelige universitet

Inger Aakre

  • Tilknyttet:
    Prosjektdeltaker
    ved Havforskningsinstituttet

Ole Jacob Broch

  • Tilknyttet:
    Prosjektdeltaker
    ved SINTEF Ocean

Silje Forbord

  • Tilknyttet:
    Prosjektdeltaker
    ved SINTEF Ocean

Jorunn Skjermo

  • Tilknyttet:
    Prosjektdeltaker
    ved SINTEF Ocean
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Resultater Resultater

Makroalger til mat og dyrefôr.

Ergon, Åshild. 2021, Blå Skog-uka. NMBUPopulærvitenskapelig foredrag
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