Abstract
Quantitative phytochemical analysis of leaf extracts of calophyllum inophyllum L. revealed that carbohydrate content in distilled water extract was higher than that of ethyl acetate and acetone extracts. The ethyl acetate extract of the plant recorded highest percent of total protein, flavonoid, phenol and vitamin C content. Vitamin E content extract was higher in acetone extract compared with that of ethyl acetate and distilled water extract.
2017050113.Quantitative estimation of primary and secondary metabolites of leaf extracts of Calophyllum inophyllum L.pdf
STUDIES ON PYTOCHEMICAL SCREENING ANDANTIBACTERIAL ACTIVITY FROM LEAF AND CALLUS EXTRACTS OF ORTHOSIPHON ARISTATUS (BLUME). MIQ.
Abstract
The aim of this study was to determine the phytochemical screening and antibacterial from leaf and callus extracts of Orthosiphon aristatus collected from different places in Tamil Nadu. Phytochemical screening involved the qualitative methods to detect the presence of terpenoids, flavonoids, phenols, tannins, steroids, quinones, saponins, cardiac glycosides and alkaloids. For the antibacterial activity different concentrations of ethanolic leaf and callus extracts were tested using the agar disc diffusion technique agaist Bacillus subtilis, Bacillus cereus, Staphylococcus aureus, Pseudomonas aeruginosa, and Escherichia coli. The phytochemical analysis of ethanolic leaf and callus extracts of Orthosiphon aristatus was shown the availability of significant secondary metabolites such as tannins, saponins, quinones, cardiac glycosides, phenols, flavonoids, terpenoids, steroids, and alkaloids. The antibacterial activity of ethanolic leaf extract of Orthosiphon aristatus shows maximum zone of inhibition in Bacillus subtilis followed by Escherichia coli. The ethanolic callus extract shows maximum zone of inhibition in Bacillus cereus followed by Pseudomonas aeruginosa. It was concluded that the powerful antibacterial effect was attributed in the ethanolic callus extract of Orthosiphon aristatus.
2017050112.STUDIES ON PYTOCHEMICAL SCREENING ANDANTIBACTERIAL ACTIVITY FROM LEAF AND CALLUS EXTRACTS OF ORTHOSIPHON ARISTATUS (BLUME). MIQ. pdf.
A novel green process for synthesis of venlafaxine and its impurities
Abstract
An improved process for synthesis of Venlafaxine from p-methoxyphenylacetonitrile with cyclohexanone using TBAI as phase transfer catalysis to give almost quantitative yields of cycloalkanols, further is reduced using Raney/nickel in methanolic ammonia, acetic acid and dimethylation using dimethyl carbonate/K2CO3 in DMF. The work is also included to identification, synthesis and characterization of process related impurities of venlafaxine
2017050111-A novel green process for synthesis of venlafaxine and its impurities pdf…
Performance Enhancement of Solar PV System using Incremental Conductance Technique
Abstract
Photovoltaic systems normally use a maximum power point tracking (MPPT) control to continuously deliver the highest possible power to the load when variations in the insolation and temperature occur. The perturb & observe (P&O) technique, is very popular and the most commonly used in practice because of its simplicity in algorithm and the ease of implementation. But this method fails to track the power under fast varying atmospheric conditions. The proposed paper is using incremental conductance (incCond) technique intending to solve the problem of the P&O technique and the main difference of the proposed paper to the existing MPPT technique is eliminating Complexity of the incCond technique the effect of simplifying the control circuit. The resultant system is capable of tracking MPPs accurately and rapidly without steady state oscillation and also its dynamic performance is satisfactory.
2017050110-Performance Enhancement of Solar PV System using Incremental Conductance Technique pdf
Antioxidant activity of Leaf extracts of Calophyllum inophyllum L. by DPPH method.
Abstract
Invitro antioxidant activity of Calopohyllum inophyllum L was studied by DPPH free radical scavenging assay, the tested extracts produced significant antioxidant activity. The maximum inhibition of DPPH free radical was exhibited by ethyl acetate extract followed by acetone extract, distilled water showed lowest inhibition at 1000mg concentration. The antioxidant activity of Calophyllum inophyllum helps to protect skin cells from damage by reactive oxygen species and other oxidative antagonists.
2017050109-Antioxidant activity of Leaf extracts of Calophyllum inophyllum L. by DPPH..pdf
CAPITAL PUNISHNMENT AND CRIME CONTROL IN NIGERIA; AN ETHICAL VIEW
Abstract
Capital punishment as a way to clamp down on high crime rate in Nigeria is contestable and has generated stiff debates between its supporters and opponents. However their distinct views, both parties are unanimous on the fact that killing a human being is a matter of great moral concern which demands that caution must be taken and other alternatives exhausted. It should be if at all, as the last resort. We must be sure to have the strongest, most compelling reasons for doing so. What kinds of reasons do we have for and against death penalty? Is it the protection of human life and the achievement of justice? Is this argument convincing enough? However, many were of the view that if we value human life and desire justice, then is sure to support capital punishment. This argument through sound plausible, but I think if examined painstakingly, it will rather show that such position is mistaken and faulty. This paper aimed at showing that capital punishment is neither an effective defense against crimes reduction nor effective means of achieving desired justice. Therefore we lack justifiable grounds or reasons to punish offenders by death. Agreed it is wrong to kill, then killing to correct a gruesome crime is still killing, and by its ontological nature is wrong and should not be carried out by the state or supported by individuals for reasons being that it is immoral and unethical.
2017050108-CAPITAL PUNISHNMENT AND CRIME CONTROL IN NIGERIA; AN ETHICAL VIEW pdf
Synthesis of Silver Nanoparticles using Phyllanthus amarus and study of its antimicrobial properties against urinary tract pathogens.
Abstract
The integration of nanomaterial with biology is finding wide applicability in various areas of medical sciences. Recently, silver nanoparticles have gained attention because of their antimicrobial activity which offers the possibility of their use for medical purposes. Metallic nanoparticles can be obtained by physical, chemical or biological methods. But silver nanoparticles synthesized by chemical reduction methods are found to be toxic, flammable and not at all eco-friendly. Therefore in the present study, an attempt was made to formulate a cost effective and environment friendly technique for green synthesis of silver nanoparticles. The silver nanoparticles were synthesized using extract of Phyllanthus amarus with AgNo3 solution . Their antibacterial activity was studied using agarwell diffusion method on isolates viz., Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, Proteus mirabilis, Enterobacter obtained from patients suffering from urinary tract infection. The antibacterial efficacy of silver nanoparticles of Phyllanthus amarus was found to be superior to that of hot or cold extracts of Phyllanthus amarus silver nanoparticles were characterized by UV-Vis spectroscopy and scanning electron microscopy (for particles size analysis). This work demonstrates the possible use of biologically synthesized silver nanoparticles to treat urinary tract infections.
IN VITRO ANTIOXIDANT ACTIVITY, TOTAL PHENOL AND TOTAL FLAVONOID CONTENT OF Orthosiphon aristatus (Blume). Miq.
Abstract
The aim of this was to examine the antioxidant activity, total phenol and total flavonoid content of the leaf of Orthosiphon aristatus collected from three distant regions of Tamil Nadu namely Azhizar, Trichy, Chengalpattu. These were examined using extracts of aqueous, ethanol, acetone, chloroform and petroleum ether. The leaf extracts were evaluated for antioxidant activities by DPPH (1,1 – diphenyl -2- picryl-hydrazyl) radical scavenging assay. Among three accessions with different solvents used, maximum antioxidant activity was found in ethanolic leaf extract 85.2% from cuddalor followed by others. Total phenol and flavonoid content was quantitatively estimated, the ethanolic leaf extract of Orthosiphon aristatus was found maximum in Azhiyar accessions (17.13 mg Gallic Acid Equivalents (GAE)/g and 9.30 mg Quercetin Equivalents (QE) /g). The powerful antioxidant activity is attributed to the greater amount of total phenol and flavonoid compound in the ethanolic leaf extract ofOrthosiphon aristatus
Customer perception on credit portfolio – A Study with reference to Primary Co-operative Agriculture and Rural Development Bank in Mayilduthurai Town.
Abstract
Agriculture, in spite of its importance, suffers from many deficiencies such as of value addition process, its dwindling share in Net Domestic Product (NDP) and the declining productivity of agriculture in general and lack of development of a viable organizational mechanism at the grass root level which can undertake planning and co-ordination. This calls for the need to develop the villages at the grass root level, which holds the key for economic development .Considering these, the Eighth Five Year Plan has given emphasis to agricultural and rural development .It is hoped that a provision of adequate credit to this sector will help in taking off agriculture from the present deteriorating stage. “India lives in villages” is true even to this day. The Land Development Banks structure has a history of eight decades in India. But such banks were not in existence in some states till independence of India. The first Land Mortgage Bank was set up in 1920 at Jahangir in the state of Punjab. In 1996-97 these LDB’s renamed as Primary Co-operative Agriculture and Rural Development Banks (PCARDBs) in most of the states. The present study is undertaken to analyses the Customer perception with credit portfolio in primary co-operative agricultural rural development bank.
2017050105,Customer perception on credit portfolio – A Study with reference…pdf
A Study on Problem and Issues of the Primary Co-operative Agriculture and Rural Development Bank in Mayilduthurai Town.
Abstract
Agriculture in a narrow sense is referred to crop production while in its wider sense it includes other allied activities where biological transformation is the process of production. Following the definition of National Commission on Agriculture, “It includes activities like cultivation of crops, cattle rearing and dairy farming, raising piggery and poultry and development of fishery and forestry and also activities connected with their improvements, while maximization of output through modernization of agriculture and allied activities is termed as agriculture development”. “India lives in villages” is true even to this day.” The Land Development Banks structure has a history of eight decades in India. But such banks were not in existence in some states till independence of India. The first Land Mortgage Bank was set up in 1920 at Jhang in the state of Punjab. In 1996-97 these LDB’s renamed as Primary Co-operative Agriculture and Rural Development Banks (PCARDBs) in most of the states. The present study is undertaken to analyses the recovery performance of loans and the reasons for default repayment by the borrowers in primary co-operative agricultural rural development bank.