共 50 条
Chromenes from Ageratum conyzoides: Steam distillation, supercritical extraction, and mathematical modeling
被引:9
|作者:
Barros, Francisco M. C.
[1
]
Almeida, Patricia Carvalho
[2
]
Scopel, Rodrigo
[2
]
do Espirito Santo, Alexandre Timm
[2
]
Lucas, Aline Machado
[2
]
Bordignon, Sergio A. L.
[3
]
Cassel, Eduardo
[2
]
Vargas, Rubem M. F.
[2
]
von Poser, Gilsane
[1
]
机构:
[1] Univ Fed Rio Grande do Sul, Fac Farm, Porto Alegre, RS, Brazil
[2] Pontificia Univ Catolica Rio Grande do Sul, Fac Engn, Ave Ipiranga 6681,Pr 30, BR-90619900 Porto Alegre, RS, Brazil
[3] Ctr Univ La Salle, Avaliacao Impactos Ambientais, Porto Alegre, RS, Brazil
关键词:
Precocene;
mass transfer;
HPLC analysis;
GC-MS analysis;
extraction kinetics;
CARBON-DIOXIDE;
FLUID EXTRACTION;
ESSENTIAL OIL;
ANTIOXIDANT ACTIVITY;
CO2;
EXTRACTION;
IN-VITRO;
DERIVATIVES;
PERSPECTIVES;
DISCOVERY;
PLANTS;
D O I:
10.1080/01496395.2015.1086798
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
The chromenes extraction processes from Ageratum conyzoides by steam distillation and supercritical fluid extraction (SFE) were studied. Essential oil was extracted by saturated steam at 1.0 to 2.0 bar and the SFE was performed at 40oC and 90 to 200 bar to obtain non-volatile extracts. The essential oil presented two major compoundsprecocene I (28.24%) and precocene II (28.55%). At 90 bar, the SFE resulted in higher yield and selectivity for precocene I and II (65.06%). The yield of chromenes varied according to pressure of SFE; however, this behavior was not observed in extracts obtained by steam distillation.
引用
收藏
页码:307 / 315
页数:9
相关论文