Green extraction of high added value substances from spent coffee grounds: preliminary results

A supercritical fluid extraction (SFE) with pure CO2 and ethanol as a co-solvent (10 %) of spent coffee grounds was carried out at temperatures from 313 K to 333 K, pressures up to 40.0 MPa and the results obtained were compared with those of the conventional Soxhlet method using n-hexane as a solve...

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Detalhes bibliográficos
Autor principal: Georgieva, Sílvia S. (author)
Outros Autores: Coelho, Jose (author), Campos, Filipe C. (author), Robalo, Maria Paula (author), Stateva, Roumiana P. (author)
Formato: article
Idioma:eng
Publicado em: 2018
Assuntos:
Texto completo:http://hdl.handle.net/10400.21/8552
País:Portugal
Oai:oai:repositorio.ipl.pt:10400.21/8552