Publication
Supercritical CO2 extraction of secondary metabolites from Agaricus blazei: experiments and modelling
| dc.contributor.author | Coelho, José P. | |
| dc.contributor.author | Casquinha, Lúcia | |
| dc.contributor.author | Velez, António | |
| dc.contributor.author | Karmali, Amin | |
| dc.date.accessioned | 2011-11-22T21:40:22Z | |
| dc.date.available | 2011-11-22T21:40:22Z | |
| dc.date.issued | 2009-05 | |
| dc.description.abstract | The mycelium and young fruiting bodies of Agaricus blazei were submitted to supercritical CO2 extraction, in a modified commercial flow apparatus, at temperatures from 40 to 80 ºC, pressures up to 600 bar and CO2 flow-rates from 2.0 to 9.0 g.min-1. The best extraction conditions of secondary metabolites, whereby the degree of solubilization (g extract/100 g of fungi) is the highest, was obtained with pure CO2 at 400 bar, 70 ºC and a CO2 flow rate of 5.7g.min-1. The extract in that conditions were analysed by GC-Ms. In order to increase the extraction yield of secondary metabolites, which are mostly present in glycolipid fractions, a polar compound (ethanol) was used as co-solvent in the proportions of 5 and 10 % (mol/mol). The presence of ethanol increased the yield when compared with the extraction with pure CO2. Moreover, a simple model was applied to the supercritical CO2 extraction of secondary metabolites from Agaricus blazei. | por |
| dc.description.sponsorship | Projects: IPL 19/2003, IPL 20 /2003 and IPL 25/2003. Lúcia Casquinha was also support with a grant from Project IPL 20/2003. | por |
| dc.identifier.citation | Coelho JP, Casquinha L, Velez A, Karmali A. Supercritical CO2 extraction of secondary metabolites from Agaricus blazei: experiments and modelling. Alicerces. 2009;II(2):7-15. | por |
| dc.identifier.issn | 1645-7943 | |
| dc.identifier.uri | http://hdl.handle.net/10400.21/475 | |
| dc.language.iso | eng | por |
| dc.peerreviewed | yes | por |
| dc.publisher | Instituto Politécnico de Lisboa | por |
| dc.title | Supercritical CO2 extraction of secondary metabolites from Agaricus blazei: experiments and modelling | por |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.endPage | 15 | por |
| oaire.citation.startPage | 7 | por |
| oaire.citation.title | Alicerces | por |
| rcaap.rights | openAccess | por |
| rcaap.type | article | por |
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