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Type: Artigo de periódico
Title: Sfe Of Rosemary Oil: Assessment Of The Influence Of Process Variables And Extract Characterization
Author: Coelho L.A.F.
Oliveira J.V.
D'Avila S.G.
Vilegas J.H.Y.
Lancas F.M.
Abstract: The effects of temperature and solvent density on the characteristics of the extracts obtained from supercritical fluid extraction (SFE) of the volatile compounds from Brazilian rosemary (Rosmarinus officianalis L., Labiatae) using carbon dioxide (CO2) as solvent were investigated. The experiments were performed in a semi-batch laboratory scale home-made unit at two temperatures, viz. 310.15 and 320.15 K, over the pressure range of 100-160 bar. This study allowed to determine the crossover point and the maximum solubility of the oil. The products were analyzed by HRGC-MS, and compounds grouped in three different classes according to their molecular mass distribution in order to evaluate the influence of the variables studied on the characteristics of the extracts. The model proposed by Sovová (1994) was adopted in an attempt to interpret the mass transfer phenomena in the extraction process.
Rights: fechado
Identifier DOI: 
Date Issue: 1997
Appears in Collections:Unicamp - Artigos e Outros Documentos

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