Yunnan is not only the center of tea origination but also the center of tea evolution and variation.There is a broad distribution of Sect.Thea（L.） Dyer in Yunnan.This paper concerns the research progress of Sect.The...Yunnan is not only the center of tea origination but also the center of tea evolution and variation.There is a broad distribution of Sect.Thea（L.） Dyer in Yunnan.This paper concerns the research progress of Sect.Thea（L.） Dyer,reveals the distribution of Sect.Thea（L.） Dyer in Yunnan,and checks out the number and name of Sect.Thea（L.） Dyer in Yunnan,which will offer references for further study and application of tea plants.展开更多
The volatile oil was extracted from leaf of Cratoxylum formosum(Jack) Dyer subsp.pruniflorum(Kurz) Gogelin in Xishuangbanna of Yunnan Province by steam distillation and its constituents were analyzed by GC-MS techniqu...The volatile oil was extracted from leaf of Cratoxylum formosum(Jack) Dyer subsp.pruniflorum(Kurz) Gogelin in Xishuangbanna of Yunnan Province by steam distillation and its constituents were analyzed by GC-MS technique.The results show that 84 peaks areseparated fromthe volatile oiland 70 compoundsare identified,which represents 96.91% of total content.Sesquiterpenoids are the major chemical constituents in the volatile oil,accounted for 86.01% of total content.The major compounds are caryophyllene(23.99%),α-cedrene(10.57%),curcumene(8.75%) and α-caryophyllene(8.57%),etc.The results provide basic data for comprehensive utilization of C.formosum subsp.pruniflorum.展开更多
基金Supported by Foundation of Tea Research Institute of Yunnan Acad-emy of Agricultural Science (2009A09-37)~~
文摘Yunnan is not only the center of tea origination but also the center of tea evolution and variation.There is a broad distribution of Sect.Thea（L.） Dyer in Yunnan.This paper concerns the research progress of Sect.Thea（L.） Dyer,reveals the distribution of Sect.Thea（L.） Dyer in Yunnan,and checks out the number and name of Sect.Thea（L.） Dyer in Yunnan,which will offer references for further study and application of tea plants.
文摘The volatile oil was extracted from leaf of Cratoxylum formosum(Jack) Dyer subsp.pruniflorum(Kurz) Gogelin in Xishuangbanna of Yunnan Province by steam distillation and its constituents were analyzed by GC-MS technique.The results show that 84 peaks areseparated fromthe volatile oiland 70 compoundsare identified,which represents 96.91% of total content.Sesquiterpenoids are the major chemical constituents in the volatile oil,accounted for 86.01% of total content.The major compounds are caryophyllene(23.99%),α-cedrene(10.57%),curcumene(8.75%) and α-caryophyllene(8.57%),etc.The results provide basic data for comprehensive utilization of C.formosum subsp.pruniflorum.
