Supercritical carbon dioxide mugwort active substance extracting method

Abstract

The present invention discloses a method for extracting effective substance of mugwort leaf by utilizing supercritical Co2 extraction process. Said invention uses the supercritical CO2 as extracting agent, and utilizes the crushed or pulverized or floss-like raw material mugwort and makes said raw material mugwort undergo the processes of forward and backward circulation extraction, makes the CO2 richly containing target extract substance undergo the one-stage or more than one-stage reduced pressure resolving separation process and makes the separated CO2 continuously implement supercritical extraction circulation so as to obtain its effective substance, namely mugwort volatile oil or mugwort volatile oil mixture. Its extraction speed is quick, process is simple and operation is convenient.

Description

technical field

[0001] The invention relates to a method for extracting effective substances of mugwort by supercritical carbon dioxide, specifically, an extraction and separation technology for extracting effective substances from mugwort by using a fluid of carbon dioxide in a supercritical state as an extraction agent. Background technique

[0002] Artemisia argyi is derived from Artemisia argyi Levl.et Vant., a plant of the Compositae family. The "Chinese Pharmacopoeia" 2000 edition records that the dry leaves of its aerial part are mainly used, which is called Artemisia argyi. Artemisia argyi has a specific aroma, bitter, pungent, slightly warm in nature, and has the effects of dispelling cold and dehumidification, warming the meridian and stopping bleeding. Indications for cold pain in the lower abdomen, irregular menstruation, cold uterine infertility, vomiting blood and epistaxis, metrorrhagia, bleeding during pregnancy, skin itching and other ...

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