Agronomic interventions affect the growth, yield, and essential oil composition of German chamomile (Matricaria chamomilla L.) in the western Himalaya

The essential oil content and composition of 'sweet marjoram? (Majorana hortensis Moench) cultivated in the Kumaon region of the western Himalaya was studied at different ages of the crop. The samples were taken after 60, 90, 120 and 150 days of transplanting. The essential oil contents varied from 0.20 % to 0.70 %. The essential oil was analyzed by GC and GC-MS. Twenty eight components, representing 96.53% - 98.44% of the oil, were identified. The major essential oil constituents, viz., (Z)-sabinene hydrate (37.05% - 47.49%), terpinen-4-ol (14.45% - 16.22%) and (E)-sabinene hydrate (5.81% - 6.97 %) showed considerable variation in their concentrations in relation to crop age.

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Essential Oil Composition of Thymus Serpyllum Cultivated in the Kumaon Region of Western Himalaya, India

Natural Product Communications ◽

10.1177/1934578x0900400723 ◽

2009 ◽

Vol 4 (7) ◽

pp. 1934578X0900400 ◽

Cited By ~ 1

Author(s):

Ram S. Verma ◽

Laiq ur Rahman ◽

Chandan S. Chanotiya ◽

Rajesh K. Verma ◽

Anand Singh ◽

...

Keyword(s):

Essential Oil ◽

Methyl Ether ◽

Western Himalaya ◽

Essential Oil Composition ◽

Oil Composition ◽

Aerial Parts ◽

Thymus Serpyllum

The hydrodistilled essential oil of aerial parts of Thymus serpyllum L. (Lamiaceae), cultivated in the Kumaon region of western Himalaya was analyzed by GC and GCMS. Twenty-nine compounds, representing 91.8% of the oil, were identified. The major components were thymol (58.8%), p-cymene (5.7%), thymol methyl ether (4.0%), borneol (3.8%), sabinene (3.4%), γ-terpinene (3.4%) and carvacrol methyl ether (3.2%).

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Variation in the Volatile Constituents of Different Plant Parts of Ligusticopsis wallichiana from Western Himalaya, India

Natural Product Communications ◽

10.1177/1934578x1200700828 ◽

2012 ◽

Vol 7 (8) ◽

pp. 1934578X1200700 ◽

Cited By ~ 1

Author(s):

Rajendra C. Padalia ◽

Ram S. Verma ◽

Amit Chauhan ◽

Chandan S. Chanotiya ◽

Anju Yadav

Keyword(s):

Essential Oil ◽

Western Himalaya ◽

Essential Oil Composition ◽

Major Constituent ◽

Oil Composition ◽

Plant Parts ◽

Germacrene D ◽

Leaf Essential Oil ◽

First Time ◽

Acetylenic Compounds

The essential oil composition of the leaves, stem, flowers and roots of Ligusticopsis wallichiana (DC.) Pimenov & Kljuykov were analyzed by GC-FID and GC-MS methods. Forty-five constituents, forming 93.2%–97.8% of the oil compositions, were dominated by acetylenic (31.5%–92.8%) compounds and sesquiterpenoids (0.3%–44.4%). The leaf essential oil was mainly composed 3,5-nonadiyne (35.8%), β-selinene (20.9%), α-funebrene (10.1%) and ( Z)-falcarinol (6.1%). The stem oil was dominated by acetylenic compounds (73.8%) represented by 3,5-nonadiyne (67.8%) and ( Z)-falcarinol (5.7%). On the contrary, the major components of the flower essential oil were sesquiterpenoids (37.5%), such as germacrene D (16.6%), α-funebrene (7.4%), and acetylenic compounds (31.5%), such as ( Z)-falcarinol (21.0%) and 3,5-nonadiyne (10.0%). Monoterpenoids constituted 23.9% of the flower oil with limonene (19.9%) as the single major constituent. The essential oil of the roots was dominated by 3,5-nonadiyne (90.5%). The results showed considerable qualitative and quantitative variations in the essential oil compositions of the different plant parts of L. wallichiana. ( Z)-Falcarinol (1.9%–21.0%) and α-funebrene (0.1%–10.1%) were reported for the first time from the essential oils of L. wallichiana.

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