ABSTRACT Hedychium spicatum Sm. is a perennial, rhizomatous, essential oil bearing, plant belongs to the family Zingiberaceae. In the present study, essential oil composition in rhizome part was analysed among 16 populations located in diverse habitat conditions in west Himalaya. A total of 39 compounds were identified accounting 89.59–98.51% of the volatile constituents. Among these, 1,8-cineole was recorded as a single major component (41.63%), followed by β-eudesmol (10.42%), α-elemol (8.08%), cadin-4-en-10-ol (7.90%), α-eudesmol (5.80%) and linalool (4.09%). Some essential oil components such as, 1,8-cineole, carissone, trans-pinocarveol, δ-terpineol, β-pinene, α-terpineol, terpinen-4-ol and α-thujene exhibited significant (p < 0.05) negative relationship with altitude. Different habitat conditions also largely influenced the oil composition and therefore can be promoted as specific compound rich essential oil. The result of this study can be utilised for selection of specific compound rich group for its use in flavour, fragrance, cosmetic or medicines.

中文翻译：

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不同环境条件和生境条件下虎尾兰自然种群根茎中精油成分的变化

摘要 Hedychium spicatum Sm。是一种多年生、根状茎、含精油的植物，属于姜科植物。在本研究中，分析了位于喜马拉雅西部不同栖息地条件的 16 个种群的根茎部分精油成分。共鉴定出 39 种化合物，占挥发性成分的 89.59-98.51%。其中，1,8-桉树脑被记录为单一主要成分 (41.63%)，其次是 β-eudesmol (10.42%)、α-elemol (8.08%)、cadin-4-en-10-ol (7.90%) )、α-eudesmol (5.80%) 和芳樟醇 (4.09%)。一些精油成分如 1,8-桉树脑、carissone、反式松香醇、δ-松油醇、β-蒎烯、α-松油醇、松油烯-4-醇和 α-thujene 与高度。不同的栖息地条件也在很大程度上影响了油的成分，因此可以作为富含特定化合物的精油进行推广。这项研究的结果可用于选择特定的富含化合物的组，以用于香精、香料、化妆品或药物。