SciELO - Scientific Electronic Library Online

 
vol.45 issue2Lie group analysis of mhd natural convection heat and mass transfer flow of a casson fluid over an inclined surface with chemical reactionRotation of a porous approximate sphere in an approximate spherical container author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Latin American applied research

On-line version ISSN 1851-8796

Abstract

SILVA, C; MANTOVANI, D; GARCIA, V.A.S  and  CARDOZO-FILHO, L. Extraction of Mucuna aterrima seed oil using compressed propane and quantification of l-dopa in the defatted meal. Lat. Am. appl. res. [online]. 2015, vol.45, n.2, pp. 91-99. ISSN 1851-8796.

The aim of this study was to extract the oil of Mucuna seeds using compressed propane as the solvent, in order to concentrate the L-Dopa content of the defatted Mucuna meal. The experiments were performed in a laboratory-scale unit with a constant propane flow rate of around 0.8 mL/min and temperature and pressure ranges of 30-60 °C and 80-120 bar, respectively. The results revealed that temperature is an important variable for the extraction yield obtained with propane. It was observed that the concentration of L-Dopa present in the defatted seed meal was greater than that in the seeds without the removal of oil. Quantitative analysis of the oil extracted under the different experimental conditions investigated showed no significant differences in terms of fatty acids (p>0.05), the major oil component being linoleic acid (omega-6), along with the presence of around 5% of linolenic acid (omega-3). The kinetics of the oil extraction with propane was also investigated for the operating conditions considered

Keywords : Mucuna Aterrima; Propane; Supercritical Extraction.

        · text in English     · pdf in English