Posted by admin on Dec 1, 2012 in |
The study of undertaken for heavy metal Pb accumulation by fly ash and coal waste in Singrauli industrialised district of India, using atomic absorption spectrometry. Ashes from collected vegetables and plants leaves samples were analysed for the quality and quantity of Cr, Mn, Pb, Zn, Cu, As, Ni and Co and detectable levels of all were found. Pb distrusted the metabolic processes of living organisms due to variable accumulation in plants and vegetable which affected the human populations through food chain. Presence of Pb and other heavy metals in environment has become a major threat to plant and common vegetable due to their bioaccumulation tendency and toxicity. In present investigation 6 plants leaves Syzygium Cumini, Dalbergia Sissoo, Dandrocalamus Strictus, Magnifera Indica, Tectona Grandis and Azadiracta Indica and 6 common leafy vegetables Spinacia Olaracia, Solanum Tuberosam, Raphanus Sativus, Brasica Comprestis, Trogonella Fonium and Momordica charantia were studies for monitoring or observation of current status of Pb in these plant and common vegetable species growing around the industries of Singrauli district....
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Posted by admin on Dec 1, 2012 in |
Water soluble polymers such as Hydroxy Propyl Methyl Cellulose (HPMC), Poly Vinyl Pyrrolidone (PVP), Carboxy Methyl Cellulose – Sodium (CMC – Na), and Methyl Cellulose as well as in combination of varying proportions are used in this study for the protective coating of Microcrystalline Hydroxy Apatite Complex (MCHC). The objective of this study was to investigate the effect of aqueous film coating on MCHC tablets evaluated by comparison with plain MCHC tablets and non-aqueous coated tablets. The parameters evaluated were the film smoothness, shininess, coating uniformity, percentage weight increase, hardness, disintegration time, dissolution study, moisture adsorption, stability and toxicity. An aqueous film coating solution in different combinations was applied on the tablets using a laboratory coating pan at 60oC, in the atmospheric pressure. By using the same method non aqueous film coating solution was applied on the MCHC tablets and the tablet bed temperature maintained at 40oC. The study has shown that HPMC and PVP combination in the proportion of 5% and 1% as coating material gave promising results...
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Posted by admin on Dec 1, 2012 in |
n-octacosanol is an normolipidemic aliphatic primary alcohol obtained from the plant Tinospora cordifolia Miers. In the present study, the plant stems were collected from five accessions namely Anniyalam, Chennai, Hassan, Vishakhapatnam and Bangalore between June and August. Later a simple HPTLC method has been established for determination of n-octacosanol in methanolic extracts of all these geographical sources using Toluene: Ethyl acetate: Formic acid (4.5:4.5:1 v/v) as mobile phase. Detection and quantification were performed by densitometric scanning at λ = 555 nm. The results of HPTLC estimation showed variation in n-octacosanol content in all the accessions. The extract from Anniyalam accession showed significantly higher amount of n-octacosanol (6.54%) and that of Vishakhapatnam showed the least (2.28%). Thus, the present work is helpful in selecting genotype of Tinospora cordifolia yielding highest percentage of...
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Posted by admin on Dec 1, 2012 in |
A new, selective and sensitive visible spectrophotometric method has been developed for the estimation of Ketorolac tromethamine in bulk and pharmaceutical preparations. The method is based on the reaction of ketorolac tromethamine with 2, 3-dichloro-5, 6-dicyano-1, 4-benzquinone (DDQ) to form red color charge–transfer complex with a λmax. 460nm extracted in methanol. Beer’s law is obeyed in the concentration range of 50 to 250µg/ml for the method. The method is extended to pharmaceutical formulations and there was no interference from any common pharmaceutical excipients and diluents. The result of analysis has been validated statistically and by recovery...
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Posted by admin on Dec 1, 2012 in |
The main cause of increasing of infectious diseases cases is due to multidrug-resistant microorganisms emergence, particularly Pseudomonas aeruginosa and Staphylococcus aureus, responsible for most of hospital-acquired infections and millions deaths related. Despite development of new antibiotics, control of these microorganisms is not always successful. Several plant extracts have demonstrated antimicrobial effects and may be used as an alternative therapy for these infections. Aiming to evaluate antibacterial activity of extracts from Eleutherine plicata (marupazinho), Geissospermum vellosii (pau-pereira) and Portulaca pilosa (amor crescido) against multidrug-resistant bacteria, samples of Oxacillin-Resistant Staphylococcus aureus (ORSA) and multidrug-resistant P. aeruginosa (MDR P. aeruginosa) isolated from human clinical processes were tested. The antibacterial activity was determined by disk diffusion method and minimum inhibitory concentration (MIC) by microdilution method. Extracts and fractions were tested at concentrations of 500, 250, 125, 62.5, 31.2 and 16.2 µg/mL dissolved in DMSO 10%. E. plicata and G. vellossi have shown activity against ORSA at MIC of 125 µg/L, whilst P. pilosa have shown action on MDR P. aeruginosa at MIC of...
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