Follow up Screening of Extraction Process of Volatile Oil in Supplemented Xanthium Powder by GC MS / 中成药

ABSTRACT

Objective: To screen the extraction process of volatile oil in Supplemented Xanthium Powder.Methods: The main compositions of volatile oil contained by every herb in prescription were followed up by GC MS. Results: The extraction process of volatile oil in Supplemented Xanthium Powder was established, that is, Flos Magnoliae and Cortex Moutan Radicis were powdered, their volatile oils were extracted with Herba Menthae together by the steam distillation; then 13 fold first fraction of distillata and 3 fold redistillation liquid were collected respectively; the volatile oil of Rhizoma Liqustici Chuanxiong was extracted with alcohol. Inasmuch as Fructus Xanthii and Radix Angelicae Dahuricae contained less volatile oil, at the same time, to avoide that Fructus Xanthii produced toxicity by water extraction and coumarinic lactones of Radix Angelicae Dahuricae was destroyed their oils were considered unfit for extraction. Conclusion: GC MS is a useful way for follow up optimization of the extraction process of volatile oil in compound prescription of Chinese medicinal and worthy of popularization.