Title:
Pressurized Fluid Extraction of Bioactive Nutraceuticals from Marine Biomass
Author(s):
Quitain, A., Sasaki, M., Kida, T.
Document(s):
Paper
Slide presentation
Abstract:
Various species of marine macroalgae contain bioactive compounds including carotenoids, proteins and polysaccharides. Fucoxanthin, the main carotenoid component, is known to possess numerous therapeutic functions. Similarly, low-molecular-weight fucoidan and peptides also exhibit several functions including antioxidant activities, antitumor and anti-aging effects. This paper highlights the use of supercritical carbon dioxide (SCCO2) and subcritical water, an environmentally benign solvent for extraction of these useful compounds. Results indicated that SCCO2 extraction could recover the lipids obtaining fucoxanthin with a recovery close to 80%. We also found that crude extract was more potent than pure fucoxanthin against HepG2 (liver) cancer cells. Subcritical water treatment was also performed using the extraction residues obtaining the target LMW fucoidan of 5-30 kDa even at a low temperature of 140 oC. The use of semi-batch reactor for simultaneous fractionation and separation of target molecular weights was also investigated. The advantages of coupling the process with microwave irradiation is also introduced and discussed.
Keywords:
biomass, macroalgae, biochemical, food additives, nutraceuticals
Topic:
Biomass Resources
Subtopic:
Algae production systems
Event:
23rd European Biomass Conference and Exhibition
Session:
1CO.9.5
Pages:
112 - 116
ISBN:
978-88-89407-516
Paper DOI:
10.5071/23rdEUBCE2015-1CO.9.5
Price:
FREE
