- Phytochemical Studies and Bioactivities
- Natural product bioactivities and synthesis
- Malaria Research and Control
- Insect Pest Control Strategies
- Natural Antidiabetic Agents Studies
- Herbal Medicine Research Studies
- Phytochemistry and Bioactive Compounds
- Insect-Plant Interactions and Control
- Phytochemical compounds biological activities
- Bioactive Compounds and Antitumor Agents
- Essential Oils and Antimicrobial Activity
- Pharmacological Effects of Natural Compounds
- Phytochemistry and biological activities of Ficus species
- Phytochemistry and biological activity of medicinal plants
- Ethnobotanical and Medicinal Plants Studies
- Insect behavior and control techniques
- Antibiotic Resistance in Bacteria
- Analytical Chemistry and Chromatography
- Quinazolinone synthesis and applications
- Chromatography in Natural Products
- Toxin Mechanisms and Immunotoxins
- Insect Resistance and Genetics
- Moringa oleifera research and applications
- Natural Compound Pharmacology Studies
- Additive Manufacturing and 3D Printing Technologies
Dwarkadas J. Sanghvi College of Engineering
2023
Hindu College of Pharmacy
2008-2013
Ipca Laboratories (India)
2013
Ambedkar University Delhi
2013
Central Institute of Medicinal and Aromatic Plants
1991-2010
Institute of Cardiology
1995
Hemwati Nandan Bahuguna Garhwal University
1982
Various extracts of flowers Cassia fistula Linn (Leguminosae) such as petroleum ether (60-80°), chloroform, acetone, ethanol, aqueous, and crude aqueous two fractions ethanol extract were tested for antihyperglycemic activity in glucose-overloaded hyperglycemic rats. The effective fraction their hypoglycemic at dose levels, 200 400 mg/kg, respectively. To confirm utility higher models, the C. subjected to antidiabetic study an alloxan-induced diabetic model Biochemical parameters like...
Abstract The annual herbaceous plant, Artemisia annua L., belonging to family Asteraceae, is the natural source of highly potent antimalarial compound, artemisinin, besides producing valuable essential oil. plant at present sole commercial for artemisinin production since all chemical syntheses are non‐viable. Therefore, economic and practical considerations dictate that plants with maximum content be found and/or ways increase their sought. key this selection breeding a comprehension...
Plumbago zeylanica Linn. (Plumbaginaceae) is used in the treatment of various inflammatory ailments traditional medicines. In order to validate these ethnobotanical practices, anti-inflammatory and antinociceptive activities leaf extracts (petroleum ether (60-80 degrees ), chloroform, acetone, ethanol, aqueous) were studied using vivo experimental models at two dose levels (200 400 mg/kg, p.o.). Anti-inflammatory activity was tested carrageenan induced rat hind paw edema method while...
Various extracts, petroleum ether, chloroform, acetone, ethanol, aqueous, and crude of fruits Zizyphus mauritiana Lam. (Rhamnaceae) the fractions ether aqueous extracts were tested for antihyperglycemic activity in glucose overloaded hyperglycemic rats. The effective fraction their hypoglycemic at two dose levels, 200 400 mg/kg, respectively. To confirm utility a higher model, Z. also subjected to an antidiabetic study alloxan-induced diabetic model mg/kg. extract non-polysaccharide found...
Abstract Three phytochemicals, curcumin 1 , demethoxycurcumin 2 and β-sitosterol-3- O -β- d -glucopyranoside 3 have been isolated from the ethyl acetate extract of rhizomes Curcuma aromatica . Chemical structures all three isolates were determined using spectroscopic chemical analyses. β-Sitosterol-3- has for first time this plant.
Abstract Saponins and sapogenins isolated from Balanites roxburghii, Agave cantala Phaseolus vulgaris were studied for insect antifeedant activity against the larvae of noctuid, Spilosoma obliqua (Walker). The most active compound was diosgenin‐3‐0‐[α‐L‐rhamnopyranosyl (1→2)]‐[β‐D‐glucopyranosyl (1→3)‐β‐D‐glucopyranosyl (1→4)]‐β‐D‐glucopyranoside (X), inhibiting approximately. 73.63 per cent feeding at 0.02 concentration. Relative efficacy all tested compounds assessed, using azadirachtin as...
Ralstonia paucula (formerly classified as CDC (Centre for Disease Control) group IVc-2, Wautersia paucula; recently renamed Cupriavidus pauculus) is an environmental Gram-negative bacillus isolated from water sources and can cause serious human infections. Patients recover bacteriologically indicating low virulence. A total of 32 cases have been reported world-wide, but no isolation has ever cerebrospinal fluid or in India. The first case R. meningitis septicemia being here along with the...
Abstract The antibacterial activity of different fractions a methanol extract obtained from the dried stem bark Ailanthus excelsa (Roxb) was studied using bacterial strains. ethyl acetate fraction inhibited growth all test bacteria. MIC EA found to be 6 mg/disc. Copyright © 2001 John Wiley & Sons, Ltd.
Artemisia annua L. (Asteraceae) is an annual herb native of Asia. This plant has been used for many centuries in traditional Chinese medicine the treatment fever and malaria. Conventional methods extraction artemisinin from A. including solvent extraction, Soxhlet heat reflux are characterized by long times consumption large volume solvents. A simple, rapid, precise microwave-assisted process was optimized fast sample preparation faster quantitative determination artemisinin, potential new...
Abstract Insect antifeedants are the substances that play a significant role in host plant selection by phytophagous insects. Extensive work has been done on natural and large number of these compounds have identified belonging to different classes during past decade. The present article deals with various chemical biological aspects insect their possible pest management.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMinor Steroidal Sapogenins from Fenugreek Seeds, Trigonella foenum-graecumR. K. Gupta, D. C. Jain, and R. S. ThakurCite this: J. Nat. Prod. 1986, 49, 6, 1153Publication Date (Print):November 1, 1986Publication History Published online1 July 2004Published inissue 1 November 1986https://pubs.acs.org/doi/10.1021/np50048a043https://doi.org/10.1021/np50048a043research-articleACS PublicationsRequest reuse permissionsArticle...
ABSTRACT The effect of soil salinity on the growth, yield, and composition Artemisia annua L. was conducted in a pot experiment. While plant height decreased, as stress increased, leaf to stem ratio generally increased salinized plants compared with control not subjected stress. vegetative yield significantly increasing 6.0 dS/m, but further increases decreased yield. artemisinin content tissue influenced 10.4 dS/m. concentration nitrogen higher phosphorus calcium were lower Potassium...
Abstract Bioassay directed fractionation of the methanol extract stem bark Ailanthus excelsa (Simarubaceae) led to isolation and identification an antifeedant constituent excelsin. A leaf disc method bioassay showed potency excelsin prevent feeding was 75.94% at 1000 ppm concentration against Spilosoma obliqua. This insect is a destructive lepidopterous pest in northern parts India attacking wide range cash crops. The effective dose (ED 50 ) found be 0.563%.
Abstract The methanolic extract of Tylophora asthamatica (Asclepiadaceae) leaves was bioassayed by a leaf disc method for feeding deterrence using Spilosoma obliqua Walker as the test insect. Tylophorine, isolated from evaluated under laboratory and greenhouse conditions its deterrence, persistence systemic properties natural host plant ( Ricinus communis ) antifeedant compound azadirachtin crude neem were used standards. Tylophorine produced complete inhibition persistent in field trials...