Rajendra K Saxena

D.A.V. College, Muzaffarnagar, Uttar Pradesh, India

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Publications (3)6.67 Total impact

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    ABSTRACT: Hydrodistillation of the aerial parts of Mentha pulegium L., collected from the wild and recorded for the first time from different locations in the higher Himalayas, Jammu and Kashmir, India, provided refreshing pale-coloured essential oils with a characteristic minty flavour. Essential oils from different locations were qualitatively similar and were found to be a complex mixture of at least 45 compounds, of which 24 were identified. Eight compounds accounted for about 87-98% of the oil and were characterized as pulegone (65.9-83.1%), menthone (8.3-8.7%), isomenthone (3.84.0%), neo-menthol (0.7-1.3%), pulegol acetate (0.1-1.2%), piperitone (1.3-3.2%), gamma-terpinene (0.9-1.2%), beta-caryophyllene (0.1-0.9%) and beta-caryophyllene oxide (0.3-1.9%) by capillary GC, GC-MS, H-1-NMR and C-13-NMR. Copyright (c) 2005 John Wiley & Sons, Ltd.
    Flavour and Fragrance Journal 11/2005; 20(6):607-610. DOI:10.1002/ffj.1497 · 1.97 Impact Factor
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    ABSTRACT: Essential oil diversity was studied in wild Achillea millefolium from two different high altitude Himalayan habitats (1600 m, 2850 m) and their cultivated populations under uniform environmental conditions at lower altitudes of Jammu (300 m). The populations proved to represent two different ecotypes: the 1,8-cineole type and the borneol type with appreciable differences in the contents of oils and mono- and sesquiterpenes. Populations from all these habitats showed considerable overlap in various constituents and the major components were characterized as beta-pinene (10.6 % - 17.7 %), 1,8-cineole (3.0 % - 15.1 %), borneol (0.2 % - 12.1 %), and beta-caryophyllene (8.5 % - 16.2 %). No variation in morphology and chromosome number was observed under comparable environmental conditions from different habitats. Preliminary investigation indicates the existence of different ecotypes from the Himalayan habitats.
    Planta Medica 04/2005; 71(3):280-3. DOI:10.1055/s-2005-837828 · 2.15 Impact Factor
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    ABSTRACT: Fresh aerial parts of Angelica glauca, growing wild in Kashmir valley in higher Himalaya (Jammu and Kashmir, India), collected at flowering stage from different locations, on hydro-distillation provided a refreshing light pale coloured essential oil with characteristic floral woody flavour. The oil was found to be a complex mixture of mono- and sesquiterpenes and 34 compounds accounting for nearly 97.4% of the oil were characterized with the help of capillary GC, GC-MS, and NMR. Major compounds of the oil were characterized as alpha-phellandrene (13.5%), trans-carveol (12.0%), beta-pinene (11.7%), thujene (7.5%), beta-caryophyllene oxide (7.2%), beta-caryophyllene (7.0%), gamma-terpinene (6.7%), nerolidol (6.5%), beta-bisabolene (5.2%) and germacrene D (4.5%). It is the first report to exploit the essential oil from Himalayan A. glauca herb collected at flowering stage.
    Phytochemistry 09/2004; 65(16):2411-3. DOI:10.1016/j.phytochem.2004.07.004 · 2.55 Impact Factor