1 / 18

Presentation of ALGEBAKT project. Antibacterial effect of arctic macroalgae species

Presentation of ALGEBAKT project. Antibacterial effect of arctic macroalgae species. DMV, PhD, Margarita Novoa-Garrido. Alta, Norway, Sept, 6th - 8th, 2010: The 7th  Circumpolar Agricultural Conference

hisoki
Download Presentation

Presentation of ALGEBAKT project. Antibacterial effect of arctic macroalgae species

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Presentation of ALGEBAKT project.Antibacterial effect of arctic macroalgae species DMV, PhD, Margarita Novoa-Garrido Alta, Norway, Sept, 6th - 8th, 2010: The 7th  Circumpolar Agricultural Conference "Circumpolar Agricultural and Land Use Resources - Prospects and Perspectives for Circumpolar Productions and Industries" 

  2. The MABIT-programme is an industrial R&D program for Northern Norway.

  3. Bioforsk Nord Bodø. Bioproduction and ecosystems along the coast Coastal ecology - possibilities for commercial exploitation of coastal and marine resources without damaging ecosystems. Our main focus is the algae.

  4. Background for the project • Antibiotics: therapy and growth promotion • Ab-resistance • Antibiotics banned in Europe as antibiotic growth promoters since 2006 It was on a short-cut through the hospital kitchens that Albert was first approched by a member of the Antibiotic Resistance. Antibiotic resistance test of P. aeruginosa strain

  5. Foto: Unni Lorentsen Pelvetia canaliculata Alaria esculenta A. nodosum Palmaria palmata

  6. L. hyperborea ALGINATE A. nodosum Vegetables in seaweed project in Bioforsk Nord. Foto: I. Øvsthus SEAWEED MEAL Sheep in seaweed meal project in Bioforsk Nord. Foto: H.J. Skulstad

  7. Algae composition • Dietary fibre (<8% DM) • Protein (5-10 % DM) • Fat (2-4 % DM) • Carbohydrates (45-60 % DM) • Vitamines: A, C, E, B1, B2, B3, B8, B9 • Minerals • Secundary bioactive metabolites

  8. Macroalgae biologiske effekter • Antibakterial • Antivirus • Antitumor • Antioxidant • Antiinflammatory • Immune stimulans • Growth stimulant

  9. Stomach up to 102 Lactobacilli, streptococci, yeast Jejunum and ileum 104-106 CFU/ml Lactobacilli, coliforms, Streptococci, fusobacteria, clostridia, bacteriodes, bifido bacteria Colon 1010-1012 CFU/ml Lactobacilli, bifido bacteria, eubacteria, fusobacteria, coliforms, clostridia, veillonella, yeasts Environment Animal health Immune system Bacterial population Diet

  10. Photo: Birger Volden

  11. Some research results • Animal husbandry: nr. of E. coli intestine, shedding of E. coli O157 and Salmonella, nr. adherent Lactobacillus sp. Innate immunity and B lymhocyte activity. • Aquaculture: Antibacterial effect on fish pathogens such as Vibrio sp. and Aeromonas sp. • Furanones, organohalogens, floratannins, fucoidans, haloperoxidases, alginate

  12. Aims of the project • Generate knowledge about bioactive components with antibacterial effect in macroalgae species adapted to the northern Norwegian climate to get a better overview of the potential for developing new products based on their antibacterial property.

  13. Material and methods • Bacteria sheep: Lactobacillus sp., Enterococcus faecium, Enterococcus faecalis, different E. coli strains • Bacteria fish:Vibrio sp., Pseudoalteromonas sp., Aeromonas sp. • Macroalgae: Four red species and two brown species • Minimum inhibitory concentration (MIN) • Liquid chromatography-mass spectrometry

  14. Synergy with other ongoing prosjects • «Natural sources of antioxidants – a necessity for animal health and welfare and product quality in organic livestock production.» • The research Council of Norway. • Effekt of feeding macroalgae on the milk quality of dairy cattle. • Effekt of feeding macroalgae on intestinal bacterial flora and immune system of sheep.

  15. Future visions • Screening • Identification of biologically activ components • Animal experiments

  16. THANK YOU FOR YOUR ATTENTION!

More Related