Constituents of the Rhizomes of TwoAlpiniaSpecies of Malaysia

Hasnah Sirat, Ahmad Rahman, H. Itokawa, H. Morita
1996 Planta Medica  
ABSTRAK Juzuk kimia rizom Alpinia rafflesiana telah dikaji. Empat komponen telah diasingkan melalui teknik kromatografi. Strukturnya telah dikenal pasti melalui kaedah spektroskop. Juzuk utama dikenal pasti sebagai kalkon flavokawin B, manakala juzuk sampingan dikenali sebagai sinamit metil, diarilheptanoid 1, 7-difenil-5-hidroksi-6-heptena-3-on dan 5,6-dihidroka-WIn. ABSTRACT The chemical constituents of the rhizomes of Alpinia rafflesiana were studied and four components were isolated by
more » ... re isolated by chromatographic techniques and their structures identified by spectroscopic methods. The major constituent has been identified as chalcone flavokawin B, while the minor constituents have been assigned as methyl cinnamate, diarylheptanoid 1, 7-diphenyl-5hydroxy-6-hepten-3-one and 5,6-dehydrokawain.
doi:10.1055/s-2006-957857 pmid:17252439 fatcat:hcvqonxoabeahohu7xqmgqbtx4