Chemical Constituents of the Volatile Oils from Different Parts of Alpinia hainanensis K.Schumann
The essential oils from the seeds,shells and leaves of Alpinia hainanensis K.Schumann were extracted by steam distillation.Forty-seven,fifty-two and sixty-one constituents were identified respectively by gas chromatography-mass spectrometry(GC-MS),accounting for 98.61％,99.26％ and 97.77％ of the total volatile oils,respectively.Eighty-one constituents were identified in all,of which twenty-eight constituents were present in all three parts,and twenty-one constituents were reported for the first time in the study of the constituents from A.hainanensis.It meant that there were differences among different parts of A.Hainanensis and some attention should be paid to the utilization of the resources.
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