Supercritical Co2 Extraction Of Curcumins And Essential Oil From The Rhizomes Of Turmeric (curcuma Longa L.)

dc.creatorChassagnez-Mendez A.L.
dc.creatorMachado N.T.
dc.creatorAraujo M.E.
dc.creatorMaia J.G.
dc.creatorMeireles M.A.A.
dc.date2000
dc.date2015-06-30T19:49:47Z
dc.date2015-11-26T14:46:57Z
dc.date2015-06-30T19:49:47Z
dc.date2015-11-26T14:46:57Z
dc.date.accessioned2018-03-28T21:57:02Z
dc.date.available2018-03-28T21:57:02Z
dc.identifier
dc.identifierIndustrial And Engineering Chemistry Research. Acs, Washington, Dc, United States, v. 39, n. 12, p. 4729 - 4733, 2000.
dc.identifier8885885
dc.identifier
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-0034405432&partnerID=40&md5=9141a10bb3b1f096df35010dc916fd73
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/107145
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/107145
dc.identifier2-s2.0-0034405432
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1253065
dc.descriptionTurmeric rhizomes were extracted with supercritical CO2 and supercritical CO2 + ethanol. Extraction experiments were carried out at pressures of 25 and 30 MPa and temperatures of 313 and 318 K. The influence of the drying temperature of the raw material on the extraction yield and curcuminoids profile was evaluated. The higher content of curcuminoids in the extracts was obtained by supercritical fluid extraction from rhizomes dried at 343 K using CO2 + ethanol. The identification of curcuminoids in both the extract and the residual solid was performed by both spectrophotometry and HPLC. The composition of the essential oil was determined by gas chromatographic mass spectrometry. A mathematical model was used to describe the overall extraction curves. The mass transfer inside the solid matrix was described by a linear first-order desorption model, whereas the transfer in the fluid phase was described by a convective mass-transfer model. The mathematical model fitted well the experimental data.Turmeric rhizomes were extracted with supercritical CO2 and supercritical CO2+ethanol. Extraction experiments were carried out at pressures of 25 and 30 MPa and temperatures of 313 and 318 K. The influence of the drying temperature of the raw material on the extraction yield and curcuminoids profile was evaluated. The higher content of curcuminoids in the extracts was obtained by supercritical fluid extraction from rhizomes dried at 343 K using CO2+ethanol. The identification of curcuminoids in both the extract and the residual solid was performed by both spectrophotometry and HPLC. The composition of the essential oil was determined by gas chromatographic mass spectrometry. A mathematical model was used to describe the overall extraction curves. The mass transfer inside the solid matrix was described by a linear first-order desorption model, whereas the transfer in the fluid phase was described by a convective mass-transfer model. The mathematical model fitted well the experimental data.
dc.description39
dc.description12
dc.description4729
dc.description4733
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dc.languageen
dc.publisherACS, Washington, DC, United States
dc.relationIndustrial and Engineering Chemistry Research
dc.rightsfechado
dc.sourceScopus
dc.titleSupercritical Co2 Extraction Of Curcumins And Essential Oil From The Rhizomes Of Turmeric (curcuma Longa L.)
dc.typeActas de congresos


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