Optimization of supercritical CO2 extraction of plantaginis semen oil by response surface methodology and studies on its antioxidant activity / 中国中药杂志
China Journal of Chinese Materia Medica
;
(24): 3253-3257, 2011.
Artigo
em Chinês
| WPRIM
| ID: wpr-274390
ABSTRACT
<p><b>OBJECTIVE</b>The optimum conditions of SFE-CO2 extraction of Plantaginis Semen oil (SPO), the composition of SPO and its antioxidant activities of SPO were all investigated in this paper.</p><p><b>METHOD</b>Response surface method (RSM) was used to establish the mathematical model of SFE-CO2 extraction of SPO to obtain the optimum conditions based on Single factor experiments. Fatty acid compositions and contents of SPO were tested by GC-MS, and antioxidant activities of SPO were studied by DPPH and ABTS free radical elimination method.</p><p><b>RESULT</b>The optimum conditions obtained through RSM analysis were as follows extraction tempreture 70 degrees C, extraction pressure 30 MPa, extraction time 120 min and flow rate 30 L x h(-1). Under the optimal condition, predicted value was 35.91%, while the experimental value was 35.07%. The experimental values agree with the predicted from the regression model with a relative error less than 5%. The main components of SPO were 9,12,15-octadecatrienoic acid, 8,11-octadecadienoic acid, octadecanoic acid and hexadecanoic acid. Most of the fatty acids were polyunsaturated fatty ones, whose quantities were obtained more than 88%. The IC50DPPH and IC50ABTS were 1.13, 3.57 g x L(-1) respectively in DPPH and ABTS assay.</p><p><b>CONCLUSION</b>Optimization of the extraction process by RSM of SPO is convenient and feasible. SPO has good antioxidant activity and is worth to develop for application.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Óleos de Plantas
/
Dióxido de Carbono
/
Química
/
Cupressaceae
/
Cromatografia com Fluido Supercrítico
/
Cromatografia Gasosa-Espectrometria de Massas
/
Métodos
/
Antioxidantes
Tipo de estudo:
Estudo prognóstico
Idioma:
Chinês
Revista:
China Journal of Chinese Materia Medica
Ano de publicação:
2011
Tipo de documento:
Artigo
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