1290
Conclusion
The present study showed that the chloroform extract of the rhizomes of
Alpinia
conchigera
Griff were separated to afford three pure compounds. They were
characterized as 3,5,7-trihydroxyflavone (galangin)
1
, 3,5,7-trihydroxy-4'-
methoxyflavone (kaempferide)
2
and 5,7-dihydroxy-4'-methoxy-3-
O
-ȕ-D-
glucopyranosideflavone (kaempferide-3-
O
-ȕ-D-glucoside)
3
, which had not been
previously reported in this species.
Further study on purification and structure elucidation of the other isolated
compounds are in progress.
Acknowledgement
The authors are indebted to the following persons and institutions for their
invaluable assistance in carrying out this study: Suranaree University of Technology
Research Fund, National Research Council of Thailand and the scientific equipment
staff, Department of Chemistry, Mahidol University for the NMR data acquisition.
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