Comparative study of the leaf oil ofJuniperus macropoda growing in Garhwal regions of Uttranchal (India)

Abstract

Leaf oils of Juniperus macropoda collected from different localities (Hindolkhal and Mussorie) of Garhwal Himalaya (Uttaranchal) exhibited much variation in their yield and composition. Oil yields in the Hindolkhal and Mussorie samples were 1.2% and 0.52% respectively. In the Hindolkhal sample, β β β β β-elemene (42.5%) was the main constituent of oil, followed by t-sabinene hydrate (8.8%) and α α α α α-cubebene (7.9%), while in the Mussorie sample the main oil constituent was α α α α α-thujone (22.6%), followed by biformene (7.7%) and sabinene (5.8%).

Seasonal variation in phytochemicals of essential oil fromJuniperus communisneedles in western Himalaya

“…Figure 1 shows the typical GC chromatograms of essential oil components observed in spring, rainy and winter seasons. Earlier reports on analysis of essential oil composition shows the presence of main components as α-pinene, sabinene, limonene, terpinen-4-ol, trans-sabinyl acetate, α-thujene in J. communis and J. wallichiana (20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30). Our research also counts the presence of sabinene, limonene, 4-terpineol, α-pinene, cis-sabinene hydrate, α-cadinol, myrcene, α-terpinene and manool as major components.…”

Chemical Composition and Biological Activity of Essential Oils from Wild Growing Aromatic Plant Species of Skimmia laureola and Juniperus macropoda from Western Himalaya

“…Generally only 19 constituents were similar in both oils. Sabinene was found only in one sample (5.8%) [3]. In another investigation on geographic variation in leaf EO of J. polycarpos in central Asia, Adams found a large variability in the constituents of the oils from Armenia, Turkmenistan, Pakistan and Kazakhstan.…”

“…Kitam., Cupressaceae), commonly known as the Indian juniper or Himalayan pencil cedar, is an evergreen tree native on the Indian subcontinent (India, Pakistan) as well as in western and middle Asia. In Himalaya it can be found at altitudes up to 4500 m above sea level [3]. The ethnic communities inhabiting high mountain areas use this plant as fuels and timber wood, for religious purposes and in health care.…”

Review on essential oils, chemical composition, extraction, and utilization of some conifers in Northwestern Himalayas

“…Trans-Sabinene hydrate, β-Elemene, α-Cubebene, ρ-cymene, δ-3-Carene, Isoledene, α-Pinene, camphene, Myrcene, α-Terpinene, α-Phellandrene, limonene, β-Thujone, α-Thujone, Citronellol, δ-Cadinene, Muurolol, α-Cadinol, Biformene (Srivastava, Haider, Dwivedi, Naqvi, & Bagchi, 2005) Juniperus recurva Wood α-Cedrene, β-Cedrene, Thujopsene, Acoradiene, β-Chamigrene, Cupararene, Cedrol, 8,14-Cedranoxide, Widdrol, 8-Cedren-13-ol acetate (Oda, Ando, Nakajima, & Inouye, 1977) Juniperus recurva…”