Artículos de revistas
Exploring The Selectivity Of Supercritical Co2 To Obtain Nonpolar Fractions Of Passion Fruit Bagasse Extracts
Registro en:
1872-8162
The Journal Of Supercritical Fluids. ELSEVIER SCIENCE BV, n. 110, p. 1 - 10.
0896-8446
WOS:000370902300001
10.1016/j.supflu.2015.12.001
Autor
Vigano
J; Coutinho
JP; Souza
DS; Baroni
NAF; Godoy
HT; Macedo
JA; Martinez
J
Institución
Resumen
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) The contents of tocols, unsaturated fatty acids and carotenoids make the passion fruit bagasse an interesting source for extraction. In this study the selectivity of supercritical carbon dioxide (SC-CO2) as solvent was explored to obtain extract fractions concentrated in such compounds from passion fruit bagasse. The study was divided into two stages. The first stage identified the conditions of temperature and pressure that achieved extracts with different chemical compositions. In the second stage, such conditions were applied in a sequential supercritical fluid extraction (SFE) process composed by three steps (60 degrees C and 17 MPa; 50 degrees C and 17 MPa; e 60 degrees C and 26 MPa). Only the first step recovered tocols, the second step extracted fatty acids without tocols and low carotenoid content, and the third step concentrated carotenoids. The sequential SFE process achieved extracts 1.5 and 5.8 times more concentrated in tocols and carotenoids, respectively, than the single-stage condition that achieved bigger global yield (40 degrees C, 35 MPa). (C) 2015 Elsevier B.V. All rights reserved. 110
1 10 FAPESP [2014/00372-8, 2013/02203-6] Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)