Indigenous Seaweeds through Multi-. Component Extraction. LoÑc G. Carvalho. Supervisors: Gordon McDougall (JHI). Louise Shepherd (JHI). Derek Stewart ...
Maximum Value Enhancement of Indigenous Seaweeds through MultiComponent Extraction
Loїc G. Carvalho Supervisors: Gordon McDougall (JHI) Louise Shepherd (JHI) Derek Stewart (JHI&HWU)
Maximum Value Enhancement of Indigenous Seaweeds through Multi-Component Extraction
Dundee, Scotland
Ayr, Scotland
Loїc G. Carvalho
Maximum Value Enhancement of Indigenous Seaweeds through Multi-Component Extraction
• • • •
Sustainably Harvest Seaweed Process The Seaweed Produce High Quality Seaweed Polysaccharides High Quality Alginates
Loїc G. Carvalho
Maximum Value Enhancement of Indigenous Seaweeds through Multi-Component Extraction We consume or use alginates • Processed food • Drug encapsulation • Drugs’ active ingredients • Cosmetics • Medical moulds, components and devices
Properties of Alginates: • Thickening • Gelling • Homogeniser • High biocompatibility
Loїc G. Carvalho
Maximum Value Enhancement of Indigenous Seaweeds through Multi-Component Extraction
Laminaria hyperborea • • •
Atlantic North Kelp, Cuvie or Tangle Native seaweed
• •
High natural availability Mannuronate/Guluronate
High G (Gelling)
Loїc G. Carvalho
Maximum Value Enhancement of Indigenous Seaweeds through Multi-Component Extraction
Industrial process Whole Laminaria hyperborea
Biomass
Solid by-product
Biomass Liquid by-product Final Residue
Processed biomass Crude Alginate Extract
In the current process, there are 4 recognised side streams available
Final Alginate Alginate process byproducts
Loїc G. Carvalho
Maximum Value Enhancement of Indigenous Seaweeds through Multi-Component Extraction
Industrial process Whole Laminaria hyperborea
Solid by-product
Liquid by-product
We will focus on
Loїc G. Carvalho
Maximum Value Enhancement of Indigenous Seaweeds through Multi-Component Extraction
Whole L. hyperborea, solid by-product and liquid by-product Analytical data gathering of selected compounds (Mannitol, fucoidan, laminarin, alginate)
Mannitol
Fucoidan
Laminarin
Other compounds (polyphenols, carotenoids, lipids and proteins)
Total extraction procedures1
Extracts by solvent fractioning
Qualification
Bioassays2
Quantification
Positive results
Bioassays2
Metabolic profiling
• 1Try different extraction or treatment approaches. • 2 Antioxidants, antimicrobials, anti-inflammatory, antitumor.
After production time of life assays (without preservatives) - Compounds endurance along time.
Loїc G. Carvalho
Maximum Value Enhancement of Indigenous Seaweeds through Multi-Component Extraction
Summary • High quality alginates are the main source of income for MBL • Other valuable co-products could positively affect total income • The manufacture process might be re-designed depending on our results
Loїc G. Carvalho
Maximum Value Enhancement of Indigenous Seaweeds through MultiComponent Extraction
