Differences of Total Flavone Content in Xiangxi Drynaria fortunei among Different Germplasm Resources
[Objective]To study the differences of total flavone content in Xiangxi Drynaria fortunei among different germplasm resources. [Method] The total flavone and total naringin were extracted from Drynaria fortunei by microwave method. With rutin as standard substance, the content of total flavone in leaf, petiole and rhizome of 8 Drynaria fortunei germplasm resources harvested in Xiangxi was determined by colorimetry. In addition, with naringin as standard substance, the content of total naringin in different parts of Drynaria fortunei was determined by colorimetry. [Result ] There was significant difference about the content of total flavone in Xiangxi Drynaria fortunei among different germplasm resources. More specifically,the content of total flavone in Longshan samples was the highest at 13.5% .followed by Wangcun samples at 1. 8% ,and the least in Baojing samples. Moreover,the content of total naringins in different parts of Drynaria fortunei followed a trend of leaf > rhizome > petiole. [ Conclusion ] Drynaria fortunei harvested from Longshan County could be used as the original species for artificial cultivation because of the highest content of total flavone. Besides, Drynaria fortunei leaves could be utilized and developed for the highest content of total naringin, aiming at providing experimental foundation for the research on germplasm resources screen and artificial cultivation of Drynaria fortunei.