From the dried flower-buds of Panax ginseng C.A. Meyer, a new ndnor dammaranetype triterpene saponin named ginsenoside III was iso1ated. On the basis of spectral and chemical evidence, the structure of the new saponin...From the dried flower-buds of Panax ginseng C.A. Meyer, a new ndnor dammaranetype triterpene saponin named ginsenoside III was iso1ated. On the basis of spectral and chemical evidence, the structure of the new saponin was elucidated as 3 -O- [β-D -glucopyranosyl (1→2 ) - βD- glucopyranosyl] - 20-O-β-D-glucopyranosyl 3 β, 12β- 20(S) -trihydroxydammar- 25 - en- 24-one.展开更多
目的建立一种利用溶解度差异从人参花中分离人参皂苷Re新工艺,并对工艺进行优化。方法:以人参皂苷Re含量为指标,对分离工艺进行优化,并通过高效液相-质谱联用技术对人参皂苷Re进行定性鉴别和含量测定。结果优化工艺条件为溶液浓缩体积75...目的建立一种利用溶解度差异从人参花中分离人参皂苷Re新工艺,并对工艺进行优化。方法:以人参皂苷Re含量为指标,对分离工艺进行优化,并通过高效液相-质谱联用技术对人参皂苷Re进行定性鉴别和含量测定。结果优化工艺条件为溶液浓缩体积75 m L,静置温度15℃,静置时间6 h时,分离出人参皂苷Re纯度达到83.57%,总收率达1.67%。结论此方法操作简单,重复性好,可用作以人参花为原料获得人参皂苷Re的大规模生产。展开更多
文摘From the dried flower-buds of Panax ginseng C.A. Meyer, a new ndnor dammaranetype triterpene saponin named ginsenoside III was iso1ated. On the basis of spectral and chemical evidence, the structure of the new saponin was elucidated as 3 -O- [β-D -glucopyranosyl (1→2 ) - βD- glucopyranosyl] - 20-O-β-D-glucopyranosyl 3 β, 12β- 20(S) -trihydroxydammar- 25 - en- 24-one.
文摘目的建立一种利用溶解度差异从人参花中分离人参皂苷Re新工艺,并对工艺进行优化。方法:以人参皂苷Re含量为指标,对分离工艺进行优化,并通过高效液相-质谱联用技术对人参皂苷Re进行定性鉴别和含量测定。结果优化工艺条件为溶液浓缩体积75 m L,静置温度15℃,静置时间6 h时,分离出人参皂苷Re纯度达到83.57%,总收率达1.67%。结论此方法操作简单,重复性好,可用作以人参花为原料获得人参皂苷Re的大规模生产。
