Papers by Shilpi Rijhwani
International journal of life science and pharma research, Jun 27, 2022
The Biodiversity of an area influences every aspect of the lives of people who inhabit it. Their ... more The Biodiversity of an area influences every aspect of the lives of people who inhabit it. Their living space and their livelihood depend on the ecosystem. Even people living in urban areas are dependent on the ecological services provided by the wilderness in the protected areas. The indigenous communities have played a vital role in the development and management of the environment through their traditional knowledge and practice. They use abundant plant biodiversity as fodder, fuel, food, medicine etc. Jhalana forest, situated in the heart of the Jaipur city, spread across an area of 17 square kilometres. The Aravalli Mountain Range is located nearby and surrounds the area with thick forest, which is home to varied flora and fauna. The study is to document nearly 40 species of wild plants of economic uses. Analysis of taxonomic group of plants revealed that a total of 40 wild plants species belonging to 33 genera and 21 families were listed. Vegetation of the study area is mainly dominated by the Anogeissus latifolia, Anogeissus pendula and Boswellia serrata. Analysis of habits of plants documented show that trees share the largest proportion with 23species followed by shrub with 6 species, along with herb with 7species and Climber with 4 species Among the 40 species 26 are used as medicinal, 15 species are edible, 6 species used as fodder, 5 species used as fuel and 1 species is used as timber. Due to deforestation, colonization and industrialization there is an urgent need is felt to undertake ethnobotanical studies before extinction of the tribal life and Sustainable Utilization of wild plants.
International Journal of pharma and Bio Sciences, 2020
Agroforestry is a sustainable land use system in which crops, trees and livestock are maintained ... more Agroforestry is a sustainable land use system in which crops, trees and livestock are maintained together on the same land to increase total yield and income. Agroforestry can alter the microclimate of soil under tree canopy. It plays an important role in enhancement of farm productivity, climate change mitigation, carbon sequestration, biodiversity conservation, phytoremediation, water conservation, improvement in quality of soil by addition of plant and animal waste. Diversification in plant species enhances microbial activity in soil, provides habitat to beneficial insects, modification in micro climate, nitrogen fixation etc. This agroecological approach breaks the monoculture structure and enhances complex interaction among various species of microflora, fauna, crops and tree species. This approach enhances natural regulation of harmful organisms, biomass production and nutrient cycling resulting in ecological sustainability. This study was undertaken to assess microbial diversity in different types of soil systems in Central Rajasthan. The different land use systems were agroforestry, Agrosilvopastoral, monoculture and barren land. Samples were taken from 0-15 cm depth and assessment of microbial diversity was carried out by characterization method by using Biomerieux VITEK 2 Compact System. Various strains of gram positive and gram negative bacterial species were identified. Most of the species belong to Bacilli. Result shows that microbial diversity was higher in agroforestry and agrosilvopastoral systems as compared to monoculture and barren land. This shows that agroforestry systems are more suitable for agricultural practices than monocropping system to enhance soil productivity and biodiversity.
Cyamopsis tetragonoloba L. (Fabaceae) commonly known as guar is widely used as a traditional medi... more Cyamopsis tetragonoloba L. (Fabaceae) commonly known as guar is widely used as a traditional medicine in India for curing various disease and also finds use in modern industrial processes as a source of commercially important gum. In the present study, the plant samples were identified and collected from Rajasthan Agricultural Research Institute Durgapura Jaipur, India. The present work focusses on evaluation of antioxidant and antimicrobial activity of different parts of two varieties of Cyamopsis tetragonoloba L. (M83 and RGC 1038) The extraction was done by hot soxhlet method using a rang of solvents like n-hexane, chloroform, ethyl acetate, methanol and water. The antioxidant properties of all extracts of guar were evaluated by DPPH free radical scavenging assay method. The antimicrobial activity was analysed by agar disc diffusion method against Gram positive, Gram negative bacteria and fungi. The results suggest that none of tested extracts of both variety of guar showed any t...
Plants have distinctive growth forms that have evolved in response to distinct selection pressure... more Plants have distinctive growth forms that have evolved in response to distinct selection pressure of nature. Environmental favourability does not only affect size but also results in higher rate of productivity. The extent of phenotypic plasticity for any character in an organism is another character that contributes to its fitness. By extending the environmental range over which an individual can survive it may increase its fitness by increasing adaptability. In many environments, fitness may be maximized not by a character which is most suited to a particular state of the environment but by the one that allows an organism to withstand environmental fluctuations. This is particularly true of plants because they are sessile and liable to experience greater temporal variations than mobile animals. In order to study this adaptive behavior against heat and drought tolerance, fresh leaves of the selected species of Cassia vizC.auriculata ,C.fistula and C.obtusifoliawere subjected to var...
The present study was initiated to explore the antibacterial activity of Jasminum sambac L.in vie... more The present study was initiated to explore the antibacterial activity of Jasminum sambac L.in view of its pharmacological utilization in ancient as well as modern system of medicine. Leaves and stem of Jasminum sambac L. were extracted in various solvents ranging from nonpolar to polar, viz., n-hexane, chloroform, ethyl acetate, methanol and water. All the plant extracts were screened for antibacterial activity against selected ATCC bacterial strains. Few plant extracts were found to show high antibacterial activity. However, for the present study we have taken into consideration only the leaf and stem extracts obtained in ethyl acetate. Both plant extracts were further evaluated for the identification of phytoconstituents by GC-MS.
Jasminum sambac Linn. (Family—Oleaceae) was tested for antibacterial activity against three impor... more Jasminum sambac Linn. (Family—Oleaceae) was tested for antibacterial activity against three important pathogenic bacteria, i.e., Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa. Powdered leaf material was extracted with different solvents from non-polar to polar viz., n-hexane, chloroform, ethyl acetate, methanol, and water using Soxhlet apparatus. All the solvent extracts were evaporated to dryness using a hot dry air oven. The dry residue was dissolved in respective mother solvents (1:10 w/v) and tested for the presence or absence of various phytochemicals. An antimicrobial test was also followed to check the antimicrobial activity. Among five solvents tested, methanol, n-hexane, and ethyl acetate extracts showed significant antibacterial activity and chloroform extract showed less activity when compared with control (respective mother solvent). Water extract did not show any activity against all three microorganisms.
In the present review, an attempt has been made to congregate the phytochemical studies done on a... more In the present review, an attempt has been made to congregate the phytochemical studies done on an important medicinal plant, Ageratum conyzoides Linn. (Family Asteraceae) which is widely spread all over the world, especially in the tropical and subtropical region. Phytochemical investigations have revealed that many components are bioactive due to the presence of broad range of secondary active metabolites such as terpenoids, flavonoids, alkaloids, steroids, and chromene. The plant has been examined on the basis of the scientific in vitro, in vivo or clinical evaluations possessing the major pharmacological activities that includes analgesic activity, antimicrobial activity, anti-inflammatory activity, spasmolytic effects, gamma radiation effects, anti cancer and radical scavenging activity, antimalarial activity and others activities. The information summarized here is intended to serve as a reference tool to practitioners in the fields of ethnopharmacology, natural product chemis...
The present study was initiated to explore the antibacterial activity of Jasminum sambac L.in vie... more The present study was initiated to explore the antibacterial activity of Jasminum sambac L.in view of its pharmacological utilization in ancient as well as modern system of medicine. Leaves and stem of Jasminum sambac L. were extracted in various solvents ranging from nonpolar to polar, viz., nhexane, chloroform, ethyl acetate, methanol and water. All the plant extracts were screened for antibacterial activity against selected ATCC bacterial strains. Few plant extracts were found to show high antibacterial activity. However, for the present study we have taken into consideration only the leaf and stem extracts obtained in ethyl acetate. Both plant extracts were further evaluated for the identification of phytoconstituents by GC-MS.
International Journal of pharma and Bio Sciences
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Papers by Shilpi Rijhwani