MAO Hai-li, ZHOU De-chao, LONG Cheng-mei, et al. Comparison and Determination of Total Flavonoids in Different Parts of Berchemia lineata[J]. Chinese journal of experimental traditional medical formulae, 2012, 18(9): 115-117.
MAO Hai-li, ZHOU De-chao, LONG Cheng-mei, et al. Comparison and Determination of Total Flavonoids in Different Parts of Berchemia lineata[J]. Chinese journal of experimental traditional medical formulae, 2012, 18(9): 115-117. DOI: 10.13422/j.cnki.syfjx.2012.09.081.
Objective: The content distribution of total flavonoids in different parts of Berchemia lineate from city of DuYun in Guizhou was investigated.Method:Flavonids in different parts of Berchemia Lineate(L)DC.were extracted by ethanol as solvent reflux
The total flavonoids were determined by spectrophotometry
rutin as control sample.Result:The absorbency and concentration of rutin have good linear correlation in the range of 5-30 μg·L-1.The regression equation was Y=0.011 2X+0.041 9(r=0.999 1)
the average recovery rate was 98.56%
Accuracy experiment RSD 0.279%
repeatability test RSD 0.634%
stability test RSD 1.49%
the contents of total flavonoids in leaf and stem was respectively 12.30% and 1.42%
that the means content of total flavonoids in leaf is 8.7 times higher than that in stem.Conclusion: the content of total flavonoids in the leaf and in the stem has a big difference
thereby the leaf of B.lineate from Duyun in Guizhou has value to be developed and used.