New Extraction Method of Volatile Oil of Atractylodes Macrocephala Koidz / 中国药房

ABSTRACT

OBJECTIVE:To improve the method of Chinese Pharmacopoeia on the extraction of volatile oil from Atractylodes macrocephala Koidz..METHODS:Volatile oil was extracted from Atractylodes macrocephala Koidz.and determined by the extraction method and determination method stated in Chinese Pharmacopoeia and by the new improved method respectively.And the components of volatile oil obtained in these two methods were respectively separated and identified by GC-MS.RESULTS:The extraction rates of volatile oil by the method of Chinese Pharmacopoeia vs.the new method were(1.28? 0.03) %(n=6) vs.(1.39? 0.03) %(n=6).As compared with the new method,seven components were missed by the method of Chinese Pharmacopoeia.CONCLUSION:The new extraction method of volatile oil can increase both the extraction rate of volatile oil and the kinds of the components in volatile oil,and it is obviously better than the method stated in Chinese Pharmacopoeia.