000202262 001__ 202262
000202262 005__ 20190317000030.0
000202262 0247_ $$2doi$$a10.1007/s10098-014-0760-5
000202262 022__ $$a1618-954X
000202262 02470 $$2ISI$$a000342195000023
000202262 037__ $$aARTICLE
000202262 245__ $$aNew proposal for production of bioactive compounds by supercritical technology integrated to a sugarcane biorefinery
000202262 269__ $$a2014
000202262 260__ $$bSpringer Verlag$$c2014$$aNew York
000202262 300__ $$a14
000202262 336__ $$aJournal Articles
000202262 520__ $$aThe construction of a supercritical fluid extraction (SFE) plant inside or in close proximity to a sugarcane biorefinery producing first and second generation ethanol demonstrated to be very promising, increasing the economic potential of the SFE process in up to 57 %, since the SFE plant could use directly the ethanol, CO2, heat, and electricity already available, with lower prices. In this study, Brazilian ginseng roots were used as model bioactive compounds source and first the statistical influence of the extraction conditions including pressure (10-20 MPa), temperature (323-363 K), and CO2/ethanol proportion ratio (90:10, 50:50, and 0:100 %, w/w) on the beta-ecdysone content in the extracts was experimentally evaluated and compared with literature results. SFE process evaluated experimentally at the present study showed higher selective extraction for beta-ecdysone from Brazilian ginseng roots, providing an extract with up to 2.16 times higher beta-ecdysone than the results obtained in previous studies. Thermal integration of the SFE process diminished energy requirements of the process, resulting in a reduction of cold utility requirement of 87 % and a final electricity demand of 7.5 kWh/g of beta-ecdysone in the extract. In a situation in which the Brazilian ginseng roots price was increased to 4.71 USD/g, only the SFE integrated with the biorefinery solution would be economically feasible. Finally, the selling of the ginseng roots leftover could be an interesting answer to increase the economical attractiveness of the integrated SFE process to the biorefinery.
000202262 6531_ $$aBiorefinering
000202262 6531_ $$aBiomass valorization
000202262 6531_ $$aClean technologies
000202262 6531_ $$aProcess integration
000202262 6531_ $$aSupercritical technology
000202262 6531_ $$aBioactive compounds
000202262 700__ $$uUniv Estadual Campinas, LASEFI DEA FEA, Sch Food Engn, UNICAMP, BR-13083862 Campinas, SP, Brazil$$aSantos, Diego T.
000202262 700__ $$aAlbarelli, Juliana Q.
000202262 700__ $$uUniv Estadual Campinas, LASEFI DEA FEA, Sch Food Engn, UNICAMP, BR-13083862 Campinas, SP, Brazil$$aRostagno, Mauricio A.
000202262 700__ $$aEnsinas, Adriano V.
000202262 700__ $$0240374$$g140973$$aMarechal, Francois
000202262 700__ $$aMeireles, M. Angela A.$$uUniv Estadual Campinas, LASEFI DEA FEA, Sch Food Engn, UNICAMP, BR-13083862 Campinas, SP, Brazil
000202262 773__ $$j16$$tClean Technologies And Environmental Policy$$k7$$q1455-1468
000202262 8564_ $$uhttps://infoscience.epfl.ch/record/202262/files/tresinari_albarelli-finalissimo.pdf$$zPostprint$$s437933$$yPostprint
000202262 909C0 $$xU12691$$0252481$$pIPESE
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000202262 937__ $$aEPFL-ARTICLE-202262
000202262 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000202262 980__ $$aARTICLE