ABSTRACT
OBJECTIVE: The quality control method of "Lü Kang Yin Xing Ye Pian" (LKYXYP) was studied and established. METHOD: The ginkgolides in LKYXYP were identified by TLC. The compounds of fatty acids in Perillae oil were determined by CC/MS. Flavones, ginkgolides and ginkgolic acids were determined by HPLC. RESULT: There were good linears relationship between the peak area and concentration, r = 0.999, RSD = 1.2% - 2.5% (n = 5), and recoveries of each composition was above 95%, the contation was stable in 24h. CONCLUSION: This method is proved to be accurate and able to be applied for the quality control of this preparation.
Subject(s)
Drugs, Chinese Herbal/chemistry , Drugs, Chinese Herbal/standards , Ginkgo biloba/chemistry , Plants, Medicinal , Salicylates/analysis , Bilobalides/analysis , Chromatography, High Pressure Liquid , Chromatography, Thin Layer , Drugs, Chinese Herbal/analysis , Flavones/analysis , Gas Chromatography-Mass Spectrometry , Plant Leaves/chemistry , Plants, Medicinal/chemistry , Quality Control , Salicylates/standards , TabletsABSTRACT
To provide supports for Ginkgo biloba cell engineering for production of Terpene lactones (Ginkgolides and bilobalide), the cell suspension were established from calli induced from zygote embryos and stems of 30-day-old seedlings respectively. The relationship between cell growth, differentiation and the terpene lactone accumulation in these suspension cultures were investigated. HPLC determination indicated that, the ginkgolide B was found in the embryo derived cell suspension cultures at 0.044% of cell dry weight, and this result was the first time reported in this study. The accumulation of terpene lactone in the suspension cultures derived from both the embryo and seedling stems are effected by the level of the cell differentiation. The ginkgolide B was only found in small cell aggregates in the size smaller than 2mm, and the highest level of ginkgolide B was accumulated in cell aggregates in the size smaller than 1mm; however, the cell aggregates in the size bigger than 3mm could only produced bilobalide and ginkgolide A. In the same size aggregates of the suspension cultures the terpene lactone accumulation is strongly effected by the source of the explant. When the size of cell aggregates was in less than 1mm, the concentration of bilobalide, ginkgolide A and B in the cell suspension cultures derived from the embryos was 2, 1.4 and 0.56-fold, respectively, higher than that of cell cultures derived from seedling stems.
