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Quantitative elemental analysis of Celocia argentea leaves by ICP-OES technique using various digestion methods 采用ICP-OES技术,采用多种消化方法对银角茶叶片进行定量元素分析
International Journal of Chemical and Analytical Science Pub Date : 2013-12-01 DOI: 10.1016/j.ijcas.2013.08.003
Anil G. Markandeya , Narayan P. Firke , Shirish S. Pingale , Sunita Salunke-Gawali
{"title":"Quantitative elemental analysis of Celocia argentea leaves by ICP-OES technique using various digestion methods","authors":"Anil G. Markandeya ,&nbsp;Narayan P. Firke ,&nbsp;Shirish S. Pingale ,&nbsp;Sunita Salunke-Gawali","doi":"10.1016/j.ijcas.2013.08.003","DOIUrl":"10.1016/j.ijcas.2013.08.003","url":null,"abstract":"<div><h3>Aim</h3><p>Quantification of macronutrient, micronutrient and toxic elements from the leaves of <em>Celocia argentea</em> by inductively coupled plasma-optical emission spectrometry (ICP-OES) and to report efficient, reliable, eco friendly method of digestion for better recovery of the elements.</p></div><div><h3>Methods</h3><p>The five digestion methods are studied included, dry ashing method with HNO<sub>3</sub>/HCl, wet digestion method with HNO<sub>3</sub>/HClO<sub>4</sub> and HNO<sub>3</sub>/H<sub>2</sub>O<sub>2</sub>, microwave digestion with HNO<sub>3</sub>/HClO<sub>4</sub> and HNO<sub>3</sub>/H<sub>2</sub>O<sub>2</sub>. ICP-OES operating parameter was optimized at radial and axial viewing along with the radio-frequency power, sample flush time and gas flow rate. The results of the elemental quantification were statistically analyzed using one way analysis of variance (ANOVA) by Kruskal–Wallis test.</p></div><div><h3>Results</h3><p><em>C. argentea</em> exhibits good quantity of macronutrients like Mg, Ca S, P, K and Fe. The ashing and microwave digestion method were found to more reliable as compare to wet digestion method and hence recommended for better recovery. The element Ca, Cu and Fe gives better recovery by ash and microwave digestion method as compare to wet digestion method. Toxic elements show their concentration below permissible limit.</p></div><div><h3>Conclusion</h3><p>All the nutrients as well as toxic elements are quantified successfully by ICP-OES technique by all methods of digestion. Dry and wet digestion methods are tedious and time consuming compare to microwave digestion method, which is greener and simpler. Kruskal–Wallis test can be employed for non-parametric methods to compare more than two population average which do not require any specific form of the distribution of the population. The <em>C. argentea</em> can be used as supplementary food for deficiency of minerals like Fe, Mg and Ca.</p></div>","PeriodicalId":100693,"journal":{"name":"International Journal of Chemical and Analytical Science","volume":"4 4","pages":"Pages 175-181"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.ijcas.2013.08.003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79646848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 13
AM1 and DFT: Conformational and vibrational spectra analysis of butyl methacrylate AM1和DFT:甲基丙烯酸丁酯的构象和振动光谱分析
International Journal of Chemical and Analytical Science Pub Date : 2013-12-01 DOI: 10.1016/j.ijcas.2013.08.001
Ottman Belaidi , Tewfik Bouchaour , Ulrich Maschke
{"title":"AM1 and DFT: Conformational and vibrational spectra analysis of butyl methacrylate","authors":"Ottman Belaidi ,&nbsp;Tewfik Bouchaour ,&nbsp;Ulrich Maschke","doi":"10.1016/j.ijcas.2013.08.001","DOIUrl":"10.1016/j.ijcas.2013.08.001","url":null,"abstract":"<div><h3>Aim</h3><p>Butyl methacrylate is used with acrylic products in order to improve the final product according to the desired characteristics. In this work we are about to make an assignment of experimental infrared bands with the help of a theoretical quantum chemistry calculations. The exact knowledge of some bands which are not characteristics of acrylic materials will enable us to make a quick analysis with available techniques of low costs for mixtures of polymers based on acrylate and methacrylate molecules.</p></div><div><h3>Materials and methods</h3><p>In the experimental part, the infrared spectrum of butyl methacrylate is obtained by using an FTIR Perkin Elmer model 2000. In the computational part and as first step, the theoretical calculations are performed by the semi-empirical AM1 method for excluding similar structures of butyl methacrylate molecule by a meticulous conformational analysis. As a second step the obtained structures are optimized using DFT. The simulated frequencies are then scaled and a tentative assignment is made based on band intensities and PED percentages.</p></div><div><h3>Results</h3><p>The theoretical calculations predict the existence of five conformations two of them represent the majority of experimental bands in the infrared spectrum. The two less stable structures represent better the band at 546 cm<sup>−1</sup>, while the assignment is very difficult for the band at 491 cm<sup>−1</sup>.</p></div>","PeriodicalId":100693,"journal":{"name":"International Journal of Chemical and Analytical Science","volume":"4 4","pages":"Pages 185-196"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.ijcas.2013.08.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84102477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Assessment of antioxidant potentiality of leafy herbs subjecting to different cooking temperatures 不同烹煮温度对叶类草本植物抗氧化能力的影响
International Journal of Chemical and Analytical Science Pub Date : 2013-12-01 DOI: 10.1016/j.ijcas.2013.06.002
Besagarahalli Padmanabh Nandini, Mysore Shankar Singh Sudarshana, Nanjaiah Rajashekar
{"title":"Assessment of antioxidant potentiality of leafy herbs subjecting to different cooking temperatures","authors":"Besagarahalli Padmanabh Nandini,&nbsp;Mysore Shankar Singh Sudarshana,&nbsp;Nanjaiah Rajashekar","doi":"10.1016/j.ijcas.2013.06.002","DOIUrl":"10.1016/j.ijcas.2013.06.002","url":null,"abstract":"<div><h3>Aim</h3><p>Leafy vegetables are known for high nutritional value and are being eaten raw or/subjected to various cooking methods. However, an attempt was made to evaluate antioxidant potentiality of leafy herbs <em>viz., Rumex vesicarius</em> L., <em>Rumex acetosella</em> L.<em>, Basella rubra</em> L.<em>,</em> and <em>Basella alba</em> L., subjecting to various cooking methods – to understand its property is stable or not, after subjecting to different cooking method.</p></div><div><h3>Methods</h3><p>For the first time antioxidant potentiality was evaluated at different cooking temperatures <em>viz</em>., 27 °C (Room temperature), 121 °C (Pressure cooker temperature), 100 °C (Micro wave oven temperature) with different concentration range (125–200 mg per 20 ml of methanolic extract) – by DPPH assay for selected plant extract.</p></div><div><h3>Conclusion</h3><p><em>R. acetosella</em> L., and <em>B. rubra</em> L., (at room temperature) and all four plant extracts <em>viz., R. vesicarius</em> L.<em>, R. acetosella</em> L.<em>, B. rubra</em> L.<em>,</em> and <em>B. alba</em> L. (at cooking temperature – 121 °C and micro oven – 100 °C) showed decreasing activity at 100, 125, and 150 mg/ml, and at 200 mg/ml, maximum (room temperature) antioxidant activity was observed. A better oxidative activity was observed at 200 μg/ml concentration at all temperatures for tested leafy vegetable, which can be attributed as dose dependant (200 mg/ml) for stable activity.</p></div>","PeriodicalId":100693,"journal":{"name":"International Journal of Chemical and Analytical Science","volume":"4 4","pages":"Pages 197-200"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.ijcas.2013.06.002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91012341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Analysis of Copper, Zinc and Lead using Atomic Absorption Spectrophotometer in ground water of Jimma town of Southwestern Ethiopia 原子吸收分光光度法分析埃塞俄比亚西南部Jimma镇地下水中的铜、锌、铅
International Journal of Chemical and Analytical Science Pub Date : 2013-12-01 DOI: 10.1016/j.ijcas.2013.07.006
Khalid Siraj, Shimeles Addisu Kitte
{"title":"Analysis of Copper, Zinc and Lead using Atomic Absorption Spectrophotometer in ground water of Jimma town of Southwestern Ethiopia","authors":"Khalid Siraj,&nbsp;Shimeles Addisu Kitte","doi":"10.1016/j.ijcas.2013.07.006","DOIUrl":"10.1016/j.ijcas.2013.07.006","url":null,"abstract":"<div><h3>Aims</h3><p>This study was design to determine the level of heavy metal contamination of ground water in Jimma town of Southwestern Ethiopia.</p></div><div><h3>Methods</h3><p>The sample had been collected from (6) different sites about (10) well and borehole water. Samples were analyzed using Atomic Absorption Spectrophotometer (AAS). Three heavy metals had been studied were Copper, Zinc and Lead. Their concentration and maximum contaminant levels (MCL) were compared with World Health Organization (WHO) data. The maximum contaminant levels according to WHO, for Copper, Zinc and Lead are 0.5, 3.0 and 0.01 mg/L respectively.</p></div><div><h3>Conclusion</h3><p>From the results obtained, none of the samples analyzed for Copper (0.025 mg/L) and Zinc (0.15 mg/L) concentration was found above the MCL but for Lead (0.02202 mg/L) concentration found above the MCL. However, the metals were present in 82.86% and 91.23% of the samples analyzed respectively. Almost 86.01% of the sample had detectable level of Lead. All the Lead concentration was above the MCL. In general, 86.70% of all samples analyzed contained one or more of three heavy metals. The results obtained from this study suggest significant risk to this population given for toxicity of these metals, well and borehole water are the only source of their water supply in this environment.</p></div>","PeriodicalId":100693,"journal":{"name":"International Journal of Chemical and Analytical Science","volume":"4 4","pages":"Pages 201-204"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.ijcas.2013.07.006","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74683981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 39
Bio-hydrogen production by Pseudomonas stutzeri KF532951 stutzeri假单胞菌KF532951的生物制氢
International Journal of Chemical and Analytical Science Pub Date : 2013-12-01 DOI: 10.1016/j.ijcas.2013.08.004
Sigamany Soniagandhi, Marimuthu Krishnaveni
{"title":"Bio-hydrogen production by Pseudomonas stutzeri KF532951","authors":"Sigamany Soniagandhi,&nbsp;Marimuthu Krishnaveni","doi":"10.1016/j.ijcas.2013.08.004","DOIUrl":"10.1016/j.ijcas.2013.08.004","url":null,"abstract":"<div><h3>Aim</h3><p>Hydrogen production by biological means is more advantageous as it utilizes renewable sources and produces very low or no carbondioxide. Since, lignocellulosic feedstocks are cheaper source, the present study was aimed to isolate <em>Pseudomonas stutzeri</em> from soil sample at country bricks chamber furnace.</p></div><div><h3>Methods</h3><p>Final confirmation of the strain was done by 16S rRNA sequencing. The GC content was calculated. The isolated strain was inoculated in hydrogen production medium containing sugarcane bagasse replacing glucose. After the incubation period of 16 days, the gas collected was studied for hydrogen production through gas chromatography technique.</p></div><div><h3>Results</h3><p>According to sequencing and phylogenetic tree results, our isolate was found to be <em>P. stutzeri</em> <strong>KF532951</strong>. The GC content of our strain was above 53%. Our strain could produce up to 3.4 mol H<sub>2</sub>/mol substrate by water displacement method.</p></div><div><h3>Conclusion</h3><p>On the basis of the above results, it is concluded that our strain is able to produce hydrogen biologically.</p></div>","PeriodicalId":100693,"journal":{"name":"International Journal of Chemical and Analytical Science","volume":"4 4","pages":"Pages 210-212"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.ijcas.2013.08.004","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74190662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
RP-HPLC method for simultaneous estimation of Rosuvastatin and Ezetimibe from their combination tablet dosage form 用反相高效液相色谱法同时测定瑞舒伐他汀和依折替米布联合片剂剂型的含量
International Journal of Chemical and Analytical Science Pub Date : 2013-12-01 DOI: 10.1016/j.ijcas.2013.04.006
Mohammed Ishaq Beludari , Karanam Vanitha Prakash , Ghanta Krishna Mohan
{"title":"RP-HPLC method for simultaneous estimation of Rosuvastatin and Ezetimibe from their combination tablet dosage form","authors":"Mohammed Ishaq Beludari ,&nbsp;Karanam Vanitha Prakash ,&nbsp;Ghanta Krishna Mohan","doi":"10.1016/j.ijcas.2013.04.006","DOIUrl":"10.1016/j.ijcas.2013.04.006","url":null,"abstract":"<div><h3>Background</h3><p>Rosuvastatin is an HMG Co-A inhibitor and Ezetimibe is an intestinal cholesterol absorption inhibitor. The combination formulation is used for the treatment of hypercholestrolemia. A simple, accurate and precise assay and rapid stability-indicating reversed-phase high performance liquid chromatographic (RP-HPLC) method has been developed and subsequently validated for the simultaneous estimation of Rosuvastatin (RSV) and Ezetimibe (EZE) from their combination drug product.</p></div><div><h3>Methods</h3><p>The proposed method is based on the separation of the two drugs in reversed-phase mode using Water’s C18 250 × 4.6 mm, 5μ column maintained at an ambient temperature. The optimum mobile phase consisted of Acetonitrile: water: 0.02 M phosphate buffer pH 8 (40:10:50 v/v), flow rate of mobile phase was set 1.0 mL min<sup>−1</sup> and PDA detection was performed at 230 nm. The method was validated according to ICH guidelines.</p></div><div><h3>Results</h3><p>It was found to be accurate and reproducible. Linearity was obtained in the concentration range of 30–90 μg mL<sup>−1</sup> for both RSV and EZE with correlation coefficients of 0.999 and 0.998 respectively. Mean percent recovery of triplicate samples at each level for both drugs were found in the range of 98% to 100% with RSD of less than 2.0%. Rosuvastatin, Ezetimibe and their combination drug product were exposed to thermal, photolytic, hydrolytic and oxidative stress conditions and the stressed samples were analyzed by the proposed method. There were no interfering peaks from excipients, impurities or degradation products due to variable stress conditions and the proposed method is specific for the simultaneous estimation of RSV and EZE in the presence of their degradation products.</p></div><div><h3>Conclusion</h3><p>The proposed method can be successfully applied in the quality control and stability samples of bulk manufacturing and pharmaceutical dosage forms.</p></div>","PeriodicalId":100693,"journal":{"name":"International Journal of Chemical and Analytical Science","volume":"4 4","pages":"Pages 205-209"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.ijcas.2013.04.006","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89680177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 37
Enhanced electrocapacitive performance of graphene oxide polypyrrole nanocomposites 增强氧化石墨烯聚吡咯纳米复合材料的电容性能
International Journal of Chemical and Analytical Science Pub Date : 2013-09-01 DOI: 10.1016/j.ijcas.2013.09.001
Harish Mudila , Muhammad Ghulam Haider Zaidi , Sweta Rana , Varsha Joshi , Sarfaraz Alam
{"title":"Enhanced electrocapacitive performance of graphene oxide polypyrrole nanocomposites","authors":"Harish Mudila ,&nbsp;Muhammad Ghulam Haider Zaidi ,&nbsp;Sweta Rana ,&nbsp;Varsha Joshi ,&nbsp;Sarfaraz Alam","doi":"10.1016/j.ijcas.2013.09.001","DOIUrl":"10.1016/j.ijcas.2013.09.001","url":null,"abstract":"<div><h3>Aim</h3><p>Graphene oxide/polypyrrole nanocomposites (PNCs) with enhanced electrocapacitive performance were prepared through a cationic surfactant assisted dilute solution polymerization of pyrrole in presence of GO at various concentrations (%, w/w) ranging 10.0–40.0 and ferric chloride as oxidant.</p></div><div><h3>Methods</h3><p>PNCs has been characterized through Fourier transformed infrared spectra, X-ray diffraction, scanning electron microscopy and simultaneous thermogravimetric-differential scanning caloriemetry. Electrochemical capacitance (<em>C</em><sub>s</sub>, F/g) of electrodes fabricated from PNCs over 316 stainless steel in presence of sulphonated polysulphone as binder has been investigated in KOH solution (1.0 M) with reference to Ag/AgCl at scan rate (V/s) ranging 0.2–0.001.</p></div><div><h3>Results</h3><p>PNCs with 20.0%, w/w of GO have shown highest <em>C</em><sub>s</sub> of 1073.64 as compared to 92.33 for pure PPy at a scan rate of 0.001 V/s. PNCs rendered a low electrocapacitive decrease during the first 500 cycles at scan rate of 0.1 V/s indicating their appreciable electrochemical performance for fabrication of supercapacitor electrodes.</p></div>","PeriodicalId":100693,"journal":{"name":"International Journal of Chemical and Analytical Science","volume":"4 3","pages":"Pages 139-145"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.ijcas.2013.09.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73687663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Antibacterial activity of pigment produced from Micrococcus luteus KF532949 黄体微球菌KF532949色素的抑菌活性研究
International Journal of Chemical and Analytical Science Pub Date : 2013-09-01 DOI: 10.1016/j.ijcas.2013.08.008
Kaliappan Umadevi, Marimuthu Krishnaveni
{"title":"Antibacterial activity of pigment produced from Micrococcus luteus KF532949","authors":"Kaliappan Umadevi,&nbsp;Marimuthu Krishnaveni","doi":"10.1016/j.ijcas.2013.08.008","DOIUrl":"10.1016/j.ijcas.2013.08.008","url":null,"abstract":"<div><h3>Aim</h3><p>The problems of synthetic pigment causing toxicity and carcinogenicity in the human body decrease its use. Therefore, interest in natural pigment production is increasing. Therefore, the marine environment has recently become an attractive research subject for many investigations, because of its rich biodiversity. Attempt has been initiated to isolate <em>Micrococcus luteus</em> from marina beach water.</p></div><div><h3>Methods</h3><p>The sea water sample isolated was allowed to grow in a Zobell marine agar medium and incubated at 37 °C for one week. The isolated strain from marine source was confirmed by 16S rRNA sequencing. The GC content was found to be 58.6%. Phylogenetic tree analysis was performed to know the sequences that are closely related. The strain was assessed for pigment production in Zobell marine broth and incubated at 37 °C for two days. The swab sticks collected from hospital were streaked directly on the labelled agar plates such as eosin methylene blue, MacConkey, nutrient, blood, mannitol salt agar and incubated at 37 °C for 24 h and characterized. The antibacterial activity of crude pigment was tested against wound isolates.</p></div><div><h3>Results</h3><p>The individual yellow colour colonies obtained was sequenced, submitted to gene bank under the accession number KF532949. Phylogenetic analysis revealed, that the identified strain <em>M. luteus</em> is closely related to various <em>Micrococcus</em> sp. The crude pigment showed promising results against <em>Staphylococcus</em> sp., <em>Klebsiella</em> sp., <em>Pseudomonas</em> sp. isolated from wound.</p></div><div><h3>Conclusion</h3><p>From this result, we can conclude that the isolated strain <em>M. luteus</em> is able to act against both gram positive and gram negative bacteria.</p></div>","PeriodicalId":100693,"journal":{"name":"International Journal of Chemical and Analytical Science","volume":"4 3","pages":"Pages 149-152"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.ijcas.2013.08.008","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89339604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 39
Bioactive compound produced from Streptomyces aureofaciens KF532950 and its antimicrobial activity 金黄色链霉菌KF532950的生物活性化合物及其抑菌活性
International Journal of Chemical and Analytical Science Pub Date : 2013-09-01 DOI: 10.1016/j.ijcas.2013.08.007
Sundaram Vennila, Marimuthu Krishnaveni
{"title":"Bioactive compound produced from Streptomyces aureofaciens KF532950 and its antimicrobial activity","authors":"Sundaram Vennila,&nbsp;Marimuthu Krishnaveni","doi":"10.1016/j.ijcas.2013.08.007","DOIUrl":"10.1016/j.ijcas.2013.08.007","url":null,"abstract":"<div><h3>Aim</h3><p>Actinomycetes are gram-positive bacteria, common in nature, play a significant role in biotechnology, as it produces vitamins, enzymes, anti-tumour agents, immune-modifying agents, mainly antibiotic compounds. Various bioactive substances are produced by a wide variety of microorganisms including several species of bacteria and fungi. Hence, it was decided to isolate soil bacteria that is able to produce biologically active substances.</p></div><div><h3>Methods</h3><p>The bioactive compound producing strain was isolated from soil and the same was sequenced, submitted to gene bank for accession number. Related species was known by tree construction. The bacterial isolates from wound were tested for its susceptibility against bioactive compound isolated from <em>Streptomyces aureofaciens</em> by disc diffusion assay. The produced compound was subjected to SDS-PAGE analysis for molecular weight determination.</p></div><div><h3>Results</h3><p>The isolated strain was obtained accession number KF532950, it contains high GC content of 63.6%. The bioactive compound produced from <em>Streptomyces aureofaciens</em> showed positive result against <em>Staphylococcus</em> spp. and <em>Pseudomonas</em> spp. and its molecular weight ranged from 14.3 to 97.4 Kd.</p></div><div><h3>Conclusion</h3><p>From the results obtained, it is concluded that, our strain produces bioactive compound which may be further characterized for its properties.</p></div>","PeriodicalId":100693,"journal":{"name":"International Journal of Chemical and Analytical Science","volume":"4 3","pages":"Pages 153-155"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.ijcas.2013.08.007","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77623397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
A facile synthesis of Methyl-2-(N-ethyl-N-phenylamino)naphthyridine-3-carboxylates 甲基-2-(n -乙基- n -苯胺)萘啶-3-羧酸酯的简单合成
International Journal of Chemical and Analytical Science Pub Date : 2013-09-01 DOI: 10.1016/j.ijcas.2013.07.008
Kishore Kumar Anantoju , Giri Tharikoppula , Laxminarayana Eppakayala , Thirumala Chary Maringanti
{"title":"A facile synthesis of Methyl-2-(N-ethyl-N-phenylamino)naphthyridine-3-carboxylates","authors":"Kishore Kumar Anantoju ,&nbsp;Giri Tharikoppula ,&nbsp;Laxminarayana Eppakayala ,&nbsp;Thirumala Chary Maringanti","doi":"10.1016/j.ijcas.2013.07.008","DOIUrl":"10.1016/j.ijcas.2013.07.008","url":null,"abstract":"<div><h3>Objective</h3><p>To develop an efficient method for the synthesis of Methyl-2-(N-ethyl-N-phenylamino)naphthyridine-3-carboxylates which is suitable for different naphthyridines.</p></div><div><h3>Methods</h3><p>All reagents used were commercial grade, <sup>1</sup>H NMR spectra were obtained on a varian 400 MHz instrument with TMS as internal standard and chemical shifts are expressed <em>δ</em> ppm solvent used in DMSO-d<sub>6</sub> &amp; CDCl<sub>3</sub> and LC–MS spectrum on a Waters LC–MS spectrometer operating at 70 ev. TLC is performed with E-Merch precoated silica gel plates (60F-254) with iodine as a developing agent. Acme, India silica gel, 60–120 mesh for column chromatography is used. All compounds are purified by column chromatography by using Silica gel (60–120 mesh) eluted with (50:1) dichloromethane in methanol.</p></div><div><h3>Conclusions</h3><p>We have developed an efficient protocol for the synthesis of Methyl-2-(N-ethyl-N-phenylamino)naphthyridine-3-carboxylates.</p></div>","PeriodicalId":100693,"journal":{"name":"International Journal of Chemical and Analytical Science","volume":"4 3","pages":"Pages 146-148"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.ijcas.2013.07.008","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85194673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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