South China Botanical Garden, CAS,South China Botanical Garden, CAS,South China Botanical Garden, CAS,South China Botanical Garden, CAS
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Abstract:
In order to understand the chemical constituents of Alpinia officinarum Hance, five flavonoids were isolated from aerial parts of A. officinarum by silica gel column chromatography and dextran gel column chromatography. On the basis of spectral data, they were identified as galangin (1), 3-O-methylgalangin (2), pinocembrin (3), pinobaksin (4) and kaempferide (5).