Posted by admin on Sep 30, 2020 in |
The secondary plant metabolites possess therapeutic value, thus play a significant role in human health and general wellbeing. The present study aimed to estimate the secondary metabolite concentration and to evaluate the antioxidant potential of Tithonia diversifolia leaf and flower extract in methanol. The phytochemical compounds in the extracts were characterized through Gas Chromatography-Mass Spectrometry (GC-MS) analysis. The leaf extract exhibited sixteen bioactive compounds, and flower extract revealed thirteen compounds with valuable activity. The major phytocompounds in leaf extract were pentacosane (22.01%), gamma- sitosterol (15.80%) and pentatriacontane (11.95%) whereas in flower extract showed methyl linolelaidate (19.55%), methyl palmitate (18.73%), 1- dotriacontanol (15.35%), 5- eicosene, (E)- (11.90%). The compounds were found to be dissimilar in both leaf and flower. Quantitative phytochemical analysis of leaf extract was found to contain a high concentration of phenols, flavonoids and saponins, whereas total alkaloids were maximum in flower extract. In in-vitro, the antioxidant activity was evaluated using 1, 1-diphenyl-2- picrylhydrazyl (DPPH) assay. Both leaf and flower extract showed remarkable antioxidant scavenging activity with an...
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Posted by admin on Sep 30, 2020 in |
Objective: The aim of this study was to screen various solvent extracts of leaves of Rumex hastatus to display in-vitro antioxidant activity, total phenolic, and flavonoid contents in order to find possible sources for future novel antioxidants in food and pharmaceutical formulations. Materials and Methods: A detailed study was performed on antioxidant activity of various Rumex hastatus leaves extracts like petroleum extract (PERH), chloroform extract (CERH), ethyl acetate extract (EAERH), methanolic extract (MERH) and aqueous extract (AERH) by in-vitro chemical analysis like DPPH, Reducing power, metal chelating, hydrogen peroxide and nitric oxide free radical scavenging assay. All these extracts were also subjected to a preliminary phytochemical screening test for various constituents. The total yield, total phenolic, and total flavonoid contents of all extracts were also determined. Results: Phytochemical screening shows the presence of triterpene, flavonoids, polysaccharides, steroids, tannins, cardiac glycoside, reducing sugar, and saponins in all extracts. The MERH exhibited the highest total phenolic content (121.7 ± 5.95 mg of GAE/g extract) and total flavonoid content (165.9 ± 3.99...
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Posted by admin on Sep 30, 2020 in |
Diabetes mellitus is the heterogeneous metabolic disorder caused by the high blood sugar level. Untreated high blood sugar can damage kidneys, eyes, nerves and other organs. Type 1 diabetes mellitus disorder is caused by the lack of insulin hormone while type 2 diabetes mellitus is a disorder of insulin resistance by β cells of the pancreas. For the management of type 2 diabetes mellitus different drugs are available as single or combination forms like Pioglitazone, Repaglinide, Metformin, Voglibose, Glipizide. Several research activities were carried out for its development, formulation and evaluation by the development of controlled-release and fast-dissolving formulations. The extensive literature review revealed information related to the formulation of sustain/fast release dosage form for the antidiabetic drugs. Newer techniques were used by the researcher for the formulation of dosage forms as solvent diffusion-evaporation technique, Reverse phase evaporation technique, emulsion solvent evaporation technique and Hot melt extrusion granulation technique. The review represents the types of formulation, methods used, excipients used and evaluation parameters of developed dosage forms and their...
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Posted by admin on Sep 30, 2020 in |
A Simple and trace level-sensitive Gas chromatography with mass spectrometer (GCMS) method was developed, optimized and validated for the determination of seven potentially genotoxic impurities which are having structural alerts i.e., 1-Bromo-5-chloropentane (PGI-1), Ethyl-6-chloro-2-oxo hexanoate (PGI-2), Methyl-7-chloro-2-oxo hepta-noate (PGI-3), Ethyl-7-chloro-2-oxo heptanoate (PGI-4), Ethyl-7-bromo-2-oxo heptanoate (PGI-5), Ethyl-8-chloro-2-oxo octanoate (PGI-6), Ethyl-2-acetyl-7-chloro heptanoate (PGI-7) contents in Cilastatin sodium drug substance. The chromatographic separations of seven genotoxic impurities were achieved on ZB-5 MS [5% Polysilarylene, 95% Poly-dimethylsiloxane copolymer capillary column of 30 m length, 0.32 mm internal diameter, film thickness 1.0 µm]. The analytic method has been demonstrated through method validation experiments w.r.t ICH guidelines, like specificity, linearity, Limit of Detection, Limit of Quantification, method precision and accuracy (recovery) parameters with allowable TTC limit. The achieved limit of detection (LOD) values was 3 µg/g. This developed method was found to be linear with correlation coefficient is greater than 0.999. Developmental and validation experiments were discussed in detail in this...
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Posted by admin on Sep 30, 2020 in |
Medicinal plants are significantly used in the cure of various ailments from ancient times. Literature suggests that traditional medicinal plants from Fabaceae, Lamiaceae, Myrtaceae, and Anacardiaceae, Combretaceae family are widely studied, and they potentially inhibit quorum sensing, a bacterial communication mechanism that leads to the pathogenesis. Plants such as Anogeissus leiocarpus, Brassia oleraceae, Camellia nitidissima, Cassia alata, Laserpitium ochridanum, Neppenthes alata, Parkia javanica, Pistacia atlantica, Plantago asiatica, Psidium guajava, Quercus infectoria, Terminallia bellerica, Terminallia catappa, are reported to be effective in quorum sensing inhibition. Plant extracts containing phytochemicals such as quercetin, kaempferol, myricetin, baicalin, cassipourol, 6-gingerol and eugenol were reported to be potential inhibitors of Pseudomonas aeruginosa quorum sensing. Bioactive principles from medicinal plants with anti-quorum sensing properties are remarkable substitutes for synthetic antibacterial drugs, especially in the era of multi-drug resistant (MDR) pathogens. The anti-quorum sensing activity of medicinal plants against the Pseudomonas aeruginosa, a gram-negative MDR bacterium, is reviewed for the period from 1997 to...
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