浙麦冬块根与须根主要成分比较

Comparison of Main Compositions in Tuberous and Fibrous Roots of Ophiopogon japonicus

摘要:

为比较浙麦冬(Ophiopogon japonicus)块根和须根中的主要成分,采用GC-MS对2年生块根及须根中的有效成分和挥发油成分进行了分析。结果表明,浙麦冬块根的总糖含量高于须根,而须根的可溶性糖、黄酮含量皆略高于块根。从浙麦冬根的挥发油中共检出73种化合物,其中块根50种,须根48种,共同含有的物质有香桧烯、莰酮、愈创木醇等25种,含量较多的成分有β-榄香烯、长叶烯及绿花白千层醇等。低沸点的醇类及烯烃为麦冬根部挥发油的主要成分。浙麦冬须根的化学成分在种类和含量上皆与块根相似,有些成分甚至高于块根,可以作为块根的替代品应用于保健品及药物研发等领域。

Abstract:

In order to compare the main components in tuberous and fibrous roots of Ophiopogon japonicus, the effective constituents and essential oils in roots were analyzed by spectrophotometry and GC-MS. The results showed that total sugar content in root tuber was higher than that in fibrous, while the contents of flavone and soluble sugar were opposite. There were 73 volatile compounds in identified, among them 50 and 48 compounds in tuberous and fibrous roots, respectively. Twenty-five compounds, such as sabinene, camphor and guaiol, were common in both roots. The contents of β-elemene, longifolene and viridiflorol in volatile oils were high. Low-boiling point alcohols and alkene were main compositions in essential oils of Ophiopogon japonicus. The kinds and contents of compounds in fibrous root were similar to those in tuberous root, and some compounds in fibrous root were even more than those in tuberous root. Therefore, fibrous root could be used as succedaneum of tuberous root in health products, research and development of drugs.