Diosgenin in 18 samples belonging to 3 species of Costus L. was determined by colorimetric and GC analyses. The results indicated that the content of diosgenin in Costus lacerus rhizome is the highest (0.530%) and the...Diosgenin in 18 samples belonging to 3 species of Costus L. was determined by colorimetric and GC analyses. The results indicated that the content of diosgenin in Costus lacerus rhizome is the highest (0.530%) and the content in C. speciosus C. lacerus . It also showed that C. tonkinensis contains no diosgenin. The samples from different parts, ploid races, locations, collection periods and storage conditions contain various amounts of diosgenin.展开更多
Six Chemical Constituents were isolated from the underground parts of Globba racemosa Smith (Zingiberaceas)and identitied as friedelin(1),cycloeucalenol(2) 3-hydroxy-stigmast -5-7-one(3), stigmast-5-en-7-one (5) and s...Six Chemical Constituents were isolated from the underground parts of Globba racemosa Smith (Zingiberaceas)and identitied as friedelin(1),cycloeucalenol(2) 3-hydroxy-stigmast -5-7-one(3), stigmast-5-en-7-one (5) and sitosterol(6) based on spectral data. 1-5 wereisolated form the Plants of Zingiberaceae family for the first time and triterpenoids were found in Zingiberaceae for the first time too.展开更多
文摘Diosgenin in 18 samples belonging to 3 species of Costus L. was determined by colorimetric and GC analyses. The results indicated that the content of diosgenin in Costus lacerus rhizome is the highest (0.530%) and the content in C. speciosus C. lacerus . It also showed that C. tonkinensis contains no diosgenin. The samples from different parts, ploid races, locations, collection periods and storage conditions contain various amounts of diosgenin.
文摘Six Chemical Constituents were isolated from the underground parts of Globba racemosa Smith (Zingiberaceas)and identitied as friedelin(1),cycloeucalenol(2) 3-hydroxy-stigmast -5-7-one(3), stigmast-5-en-7-one (5) and sitosterol(6) based on spectral data. 1-5 wereisolated form the Plants of Zingiberaceae family for the first time and triterpenoids were found in Zingiberaceae for the first time too.