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Supercritical CO_2 extraction of Rhizoma Chuanxiong volatile oil / 中成药
Chinese Traditional Patent Medicine ; (12)1992.
Artigo em Chinês | WPRIM | ID: wpr-574127
ABSTRACT

AIM:

Supercritical CO_2 extraction of Rhizoma Chuanxiong volatile oil was studied under conditions of extraction temperature between 33-48 ℃,pressure between 10-25 MPa and CO_2 flow rate between 2-4 L?min -1 .Influence of extraction conditions on solubility and mass transfer rate were analyzed.

METHODS:

Based on plug flow in fixed bed,experimental extraction curves were evaluated using a model put forward by Stastova.And the effects of extraction conditions on mass transfer coefficients were also analyzed.

RESULTS:

Coefficient of mass transfer was slowly increased as the extraction temperature elevated,and was in accord with flow and in contrast with pressure.

CONCLUSION:

The method has a practical use value in the extraction of Rhizoma Chuanxiong volatile oil.

Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Idioma: Chinês Revista: Chinese Traditional Patent Medicine Ano de publicação: 1992 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Idioma: Chinês Revista: Chinese Traditional Patent Medicine Ano de publicação: 1992 Tipo de documento: Artigo