THE DETERMINATION OF RUTIN AND FLAVONOIDS OF KUDINGCHA LEAVES

With determined by spectrophotometry,the flavonoid content of bud leaves and old leaves of Ligustrum purpurascens Y.C.Yang were(2.67 ± 0.23)%(,2.08 ± 0.21)% separately,and bud leaves and old leaves of Ligustrum robustum(Rxob.)B.L were(3.15±0.18)%(,2.78±0.22)%.With determined by HPLC,the flavonoid content of bud leaves and old leaves of Ligustrum purpurascens Y.C.Yang were(0.118±0.011)%,(0.083± 0.012)%,and bud leaves and old leaves of Ligustrum robustum(Rxob.)B.L were(0.082±0.012)%(,0.065± 0.008)%.Kudingcha contains large quantities of flavonoid,can be used to extract flavonoid as material.The content of rutin were the 2.3 %-4.4 % of flavonoid.