Posted by admin on Feb 28, 2021 in |
This study reports the isolation and antioxidant activity of non-polar terpenes extracted from the leaves of Bougainvillea glabra choicy. To characterize the phytochemical constituents of Bougainvillea glabra leaves using the GC-MS method. The 95% ethanol extract was filtered, distilled, and concentrated to obtain the solid greenish residue. The residue was further fractioned by n-hexane, chloroform, ethyl acetate, acetone, ethanol, and methanol. The GC-MS analysis of Chloroform extract of Bougainvillea glabra leaves revealed the presence of thirteen compounds that could contribute to the medicinal quality of the plant. The first compound identified with less retention time (9.50 min) was 1-(1-methyl-decyl)-decahydro-napthalene. The isolation of organic compounds was done using column and thin layer chromatographic techniques. Compound characterization using various spectroscopic techniques identified the final isolated compound as 1-(1-methyl-decyl)-decahydronapthalene. Antioxidant activity was evaluated by the DPPH method. The method of isolation is simple, cost-effective, and...
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Posted by admin on Jan 31, 2021 in |
In recent years, the extensive use of antibiotics has resulted in their frequent detection in the effluent discharge of wastewater discharge plants (WWTPs). In this study, the feasibility of using Surfactant-Modified Kaolinite (SMK) to remove the antibiotic, Ciprofloxacin (CIP) from wastewater was evaluated from batch experiments. The batch adsorption system was utilized to evaluate the CIP removal efficiency at different contact times, SMK dosages, and CIP concentrations. The experimental data were analyzed by the Langmuir, Freundlich, Temkin, and Dubinin–Radushkevich (D–R) isotherm models. R2 values of Langmuir and D–R isotherm models are higher than that of other models, and maximum monolayer coverage (qmax) was calculated as 61.82 mg/g. The separation factor of 0.495 indicated favorable sorption. Also, from the Freundlich isotherm model, the intensity of adsorption (n) that indicated favorable sorption was 2.954. The kinetic study of sorption indicates that the pseudo-second-order model provides a better correlation of the sorption data than the pseudo-first-order, confirming the chemisorption of CIP ions on SMK. The results showed that a significant increase in...
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Posted by admin on Jan 31, 2021 in |
Moringa oleifera is widely used in Asia and Africa as an anti-inflammatory, anti-diabetic, and cold agent. However, there are no Moringa medicines on the Russian pharmaceutical market; therefore, it is of interest for research as a promising source of raw materials and introduction to the State Pharmacopoeia of Russian Federation. This study was conducted to compare the characteristics of the authenticity of leaves from different regions. Moringa whole leaf from India and powder from Namibia were studied using macroscopic, microscopic, and qualitative chemical analysis. The results showed that there are both similarities and differences of characters depending on the area of collection of raw materials. A quantitative assessment of diagnostic signs was carried out; for the first time, trichomes and druses, as well as stomata. Qualitative phytochemical analysis revealed the presence of tannins, flavonoids, and saponins in both samples. It was established that the studied samples corresponded to pharmacopoeial requirements for authenticity indicators. A relatively larger number of calcium oxalate druses was found in the Indian raw materials. The...
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Posted by admin on Nov 30, 2020 in |
Solanum torvum Sw. belonging to the family Solanaceae is locally called as pea eggplant, sundai and cherry egg-plant in India. The fruits of Solanum torvum Sw. used to cure diseases of the diuretic, malaria, stomach aches, problems with the spleen, treat coughs, improve the eyesight, treats headaches which attribute many properties in Ayurveda, siddha, unani and local health traditions. The purpose of this study is to isolate and characterize the STL, STB and STD from the fruits of Solanum torvum Sw. The isolation was done using column chromatography using gradient elution with different mobile phase. Structural elucidation of the isolated compounds was established out on the basis of elemental analysis and spectroscopic evidence of IR, 1H NMR, 13C NMR spectra. The purification of the isolated compounds by HPLC and HPTLC was carried out. On the basis of the spectral data and chemical reactions, the compounds have been established as STL, STB, and STD are being reported from this plant for the first...
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Posted by admin on Oct 31, 2020 in |
Plants as a source of medicine have been inherited and are an important component of the health care system in India. Equisetum diffusum D. Don (Equisetaceae) is one of the medicinally important plants, which is a native species to the Himalayan Mountains. It is popularly known as Himalayan horsetail. The present endeavor deals with the exploration of the chemical composition of Himalayan E. diffusum. The chemical composition of the essential oil obtained from aerial parts of E. diffusum was analyzed, for the first time, by GC–FID and GC–MS. A total of 52 compounds were identified, constituting over 93.54% of oil composition. The oil was strongly characterised by phytol (35.63%), in addition to hexacosane (8.04%), cadin-4-ene-7-ol (cis) (5.32%), n-decane (3.31%), heptacosane (2.92%), and phytone (2.95%), bisabolol-epi-α (2.6%), 4-heptanone-2-methyl (2.24%), n-nonane (2.24%) and octacosane (2.05%) as the main components. High phytol content with other major constituents reported here, provide initial evidence of a new and alternative source of substances with medicinal interest. Furthermore, identification and purification of the active compounds responsible...
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