从醚提取物中获得的挥发性化合物，通过GC/MS分析了高良姜和小豆豆的顶部空间气体和蒸汽馏出物。这两个物种都是天然稀有的fenchane型单萜的丰富来源，芬妮,Fenchone,芬基醇及其乙酸酯，和1,8-桉树脑一起.挥发性倍半萜的分布在这两个物种中都非常差。A.japonica和E.cardamomum中的Fenchone的手性占（1S，4R)-(+)形式。A.japonica中的樟脑由（1R，4R)-(+)-形式(94.3%)和(1S，4S）-（-）-形式（5.7%）。另一方面,仅生产的E.豆蔻(1R，4R)-(+)-樟脑(99%)。
The volatile compounds obtained from the ether extracts, headspace gases and steam distillates of Alpinia japonica and Elettaria cardamomum were analyzed by GC/MS. Both species were rich sources of naturally rare fenchane-type
monoterpenoids, fenchene, fenchone, fenchyl alcohol and its acetate, together with 1,8-cineole. The distributions of volatile sesquiterpenoids were very poor in both species. Chiralities of fenchone in A. japonica and E. cardamomum were 99% of (1S,4R)-(+)-form. Camphor in A. japonica is composed of a mixture of (1R,4R)-(+)-form (94.3%) and (1S,4S)-(-)-form (5.7%). On the other hand, E. cardamomum produced only (1R,4R)-(+)-camphor (99%).
