Researches on alpinetin and cardamonin ,the main constituents from Alpinia katsumadai Hayata,were reviewed,mainly on the distribution in plants,pharmacological actions,chemical synthesis and analysis method.

Eight antiplatelet compounds,alpinetin,cardamonin,4 ,7-dihydroxy-5-methoxyflavanone,helichrysetin,5,6-dehydrokawain,4 -hydroxydehydrokawain,1,7-bis (4-hydroxyphenyl)-3-hydroxy-1,3,6-heptatrien-5-one and 1,7-bis (4-hydroxyphenyl)-3-hydroxy-1,3-heptadien-5-one,in eighteen samples of sixteen Alpinia species were analyzed by HPLC.

Study on the extraction process of alpinetin and cardamonin in Alpinia Katsumadai Hayata;

Methods The contents of alpinetin and cardamomin were simultaneously determined by a HPLC system using following conditions:the column was Kromasil C18 (5 μm× 250 mm×4.

OBJECTIVE To analyze the chemical components of the essential oil from fructus amomi rotundus by GC-MS.

Study on the extraction process of alpinetin and cardamonin in Alpinia Katsumadai Hayata;

Study of chemical constituents of the essential oil from Alpinia katsumadai Hayata by GC-MS;

The chemical constituents of Alpinia katsumadai hayata were extracted with ether by Sexhet and the chemical constituents was analyzed by GC-MS.

Optimize the Extraction Process for the Volatile Oil from the Nutmeg by Orthogonal Design;

Comparing analysis of components in volatile oils of nutmeg and prepared nutmeg by GC-MS;