A5001906866- Essential Oils and Antimicrobial Activity
- Phytochemistry and Biological Activities
- Natural product bioactivities and synthesis
- Ethnobotanical and Medicinal Plants Studies
- Plant biochemistry and biosynthesis
- Ginger and Zingiberaceae research
- Allelopathy and phytotoxic interactions
- Phytochemicals and Medicinal Plants
- Traditional and Medicinal Uses of Annonaceae
- Plant chemical constituents analysis
- Sesquiterpenes and Asteraceae Studies
- Phytochemicals and Antioxidant Activities
- Piperaceae Chemical and Biological Studies
- Medicinal Plant Extracts Effects
- Insect Pest Control Strategies
- Medicinal Plants and Neuroprotection
- Seed and Plant Biochemistry
- Flowering Plant Growth and Cultivation
- Plant Physiology and Cultivation Studies
- Agricultural Practices and Plant Genetics
- Medicinal Plant Research
- Plant Toxicity and Pharmacological Properties
- Plant tissue culture and regeneration
- Alkaloids: synthesis and pharmacology
- Agriculture, Plant Science, Crop Management
Central Institute of Medicinal and Aromatic Plants
2015-2024
Academy of Scientific and Innovative Research
2019-2024
National Botanical Research Institute
2019
Council of Scientific and Industrial Research
2016
GTx (United States)
2011
Kumaun University
2005-2010
Rosa damascena Mill. is an important aromatic plant for commercial production of rose oil, water, concrete and absolute. The water oil produced under the mountainous conditions Uttarakhand were investigated their chemical composition. major components volatiles obtained from bud, half bloom full stages cultivar 'Ranisahiba' phenyl ethyl alcohol (66.2-79.0%), geraniol (3.3-6.6%) citronellol (1.8-5.5%). 'Noorjahan' 'Kannouj' also possessed (80.7% 76.7%, respectively) as a component at stage....
Abstract The hydrodistilled essential oils of Ocimum basilicum L. cvs. 'Vikarsudha' and 'CIM-Soumya', sanctum 'Green' (CIM-Ayu) 'Purple', gratissimum kilimandscharicum Guerke have been studied by capillary gas chromatography (GC) chromatography-mass spectrometry (GC-MS). Phenylpropanoids (65.2–77.6%) constituted the major proportion oil compositions O. sanctum, gratissimum, whilst oxygenated monoterpenes (72.7%) composition kilimandscharicum. 'Purple' were almost same, both cultivars...
Abstract To explore the diversity in essential oil yield and composition of Valeriana jatamansi Jones (syn. V. wallichii DC) growing wild Uttarakhand (Western Himalaya), 17 populations were collected from different locations grown under similar conditions. Comparative results showed considerable variations composition. The varied 0.21 to 0.46% fresh roots rhizomes jatamansi. Analysis oils by GC ( RI ) GC/MS subsequent classification principal component analysis (PCA) resulted six clusters...
Fish-mint (Houttuynia cordataThunb.), belonging to family Saururaceae, has long been used as food and traditional herbal medicine. The present study was framed assess the changes occurring in essential-oil composition of H. cordata during annual growth evaluate allelopathic, antibacterial, antifungal, antiacetylcholinesterase activities. content ranged from 0.06 - 0.14% 0.08 0.16% aerial parts underground stem, respectively. essential oils were analysed by GC-FID, GC/MS, NMR (1 H 13 C)....
The terpenoid composition of the essential oils 17 different populations Origanum vulgare L., collected from wild and subsequently grown under similar conditions in sub-temperate region Western Himalaya, was studied. Analysis by GC (RI) GC/MS allowed identification 51 components, representing 90.15 to 99.94% total oil. two classes phenolic compounds monoterpenoids were predominant all oils. On basis major constituents, i.e., marker compounds, comparison results with previous reports, new...
The essential oils from six Himalayan Nepeta species, viz. leucophylla Benth., discolor Royle ex govaniana clarkei Hook f., elliptica Benth. and erecta were tested for their in vitro antimicrobial activity against pathogenic bacterial two fungal strains. results showed that Pseudomonas aeruginosa was the most sensitive strain to of species. N. exhibited highest P. aeruginosa, followed by clarkei. also found be very effective Serratia marcescens; while oil displayed significant Proteus...
Abstract The essential‐oil compositions of leaves, flowers, and rhizomes Alpinia galanga (L.) Willd ., calcarata Rosc speciosa K. Schum. , allughas . were examined compared by capillary GC GC/MS. Monoterpenoids the major oil constituents identified. 1,8‐Cineole, α ‐terpineol, ( E )‐methyl cinnamate, camphor, terpinen‐4‐ol, ‐ β ‐pinenes commonly distributed in leaf flower essential oils. presence endo ‐fenchyl acetate, exo ‐fenchol was unique feature rhizome oils A. galanga, speciosa. On...
Abstract BACKGROUND: Two Ocimum basilicum cultivars, ‘Vikarsudha’ and ‘CIM‐Saumya’, grown in the Kumaon region of western Himalaya were evaluated for their essential oil yield composition at different stages plant growth during two distinct cropping seasons (spring–summer rain–autumn). RESULTS: The highest was obtained full bloom stage both cultivars seasons. oils from analysed by capillary gas chromatography with flame ionisation detection, chromatography–mass spectrometry. major component...
ABSTRACT Citronella (Cymbopogon spp.) essential oil is an important component of various fragrances, cosmetics, and household products. In this study, comparative chemical composition antimicrobial activity Java citronella winterianus Jowitt ex Bor) oil, extracted by different methods, namely hydro-distillation steam-distillation were determined GC, GC-MS, disc diffusion assay microdilution broth assay. Major constituents the citronellal (2.2–55.4%), geraniol (14.2–53.0%), citronellol...
Abstract The leaf terpenoid compositions of nine Lauraceae species, viz., Neolitsea pallens, Lindera pulcherrima, Dodecadenia grandiflora, Persea duthiei, odoratissima, gamblei, Phoebe lanceolata, Cinnamomum tamala , and camphora collected from the Himalayan region (India) were examined by GC, GC/MS, NMR analyses in order to determine similarities differences among their volatile constituents. Furano‐sesquiterpenoids principal constituents N. L. pulcherrima D. grandiflora. ( E )‐Nerolidol,...