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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Posted by admin on Aug 31, 2020 in |
The aim of the present research work was to develop a bilayer floating dosage form of immediate-release Atorvastatin (ATR) and sustained release Captopril (CPT) in matrix form for the treatment of hyperlipidaemia and hypertension to reduce multiple dosing frequencies and enhance patient compliance. ATR belongs to the BCS Class II category having poor aqueous solubility, which was enhanced by using hydrophilic polymer PEG 8000 by kneading technique. A sustained layer of CPT was prepared by melt granulation technique using various concentrations of carnauba wax with HPMC K 100 M and Carbopol 934 P. All the parameters before and after compression were evaluated. ATR-PEG ratio of 1:0.25 showed a higher drug release of about 97.42% within 60 min. The optimized CPT sustained layer SR2 shown the highest drug release 98.2% in 12 h. In-vitro drug release studies carried out as per USP in pH 1.2 buffer using type II apparatus. The CPT layer exhibited release kinetics in the first order and followed the diffusion and erosion mechanism. The FTIR, XRD...
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Posted by admin on Jul 31, 2020 in |
Quality by Design (QbD) is a systematic approach for the development of products and processes. Azilsartan Medoxomil is a competitive antagonist of the Angiotensin II Type 1 receptor. A precise and reproducible ultra-performance liquid chromatographic (UPLC) method was developed and validated for the estimation of Azilsartan Medoxomil from its marketed tablet dosage form applying Quality by Design approach. Eight experiments were conducted using the full factorial design in order to rationally examine the effects of stationary phase, buffer pH and organic phase concentration in primary screening followed by method optimization with variation in Column temperature and flow rate. Chromatographic separation of AZIL was achieved at 40 °C temperature using an Acquity UPLC BEH C18 (4.6mm × 2.1mm, 1.7μ) analytical column; the mobile phase consisted of Acetonitrile: phosphate buffer (pH 5.5, 0.02mM) (40:60, v/v) at a flow rate of 0.3 ml min-1. Azilsartan eluted with retention time (Rt value) 2.41 min. The linear regression analysis showed good linear relationship with a correlation coefficient of 0.999. The limit of detection and...
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