Volume-12 ~ Issue-3 ~ March-2019

Abstract: Laurus nobilis L. is a source of monoterpenesand otherantioxidant compounds, as tocopherol.The aim of the study was to identify and relate the chemical compounds of the laurel leaves extracts, obtained by different techniques (hydrodistillation (HD), Soxhlet (SOX), ultrasound-assisted (UAE) and Supercritical CO2 (Sc-CO2) with their antioxidant characteristics. The SOX and UAE extractions obtained higher yield. The yields of the Sc-CO2 extraction were similar or greater than the HD extraction. Oxygenated monoterpenes were found in the HD, SOX and UAE extracts. A significant amount of α-tocopherol was extracted by supercritical fluid. Laurel leaves extracts are sources of antioxidant compounds.

Keywords: 1,8-cineole, α-tocopherol, monoterpenes, antioxidant.

[1]. S. Santoyo, R. Lloría, L. Jaime, E. Ibañez, F.J. Señoráns, G. Reglero, Supercritical fluid extraction of antioxidant and antimicrobial compounds from Laurus nobilis nobilis nobilis L. Chemical and functional characterization, Eur. Food Res. Technol. 222 (2006) 565–571. doi:10.1007/s00217-005-0027-9.
[2]. M.M.F.-A. Carla, F. da R. Maurício, B. Édela, B. Fabiana, C.I. Camila, E.G. José, A.G.C. Diógenes, V.B.M. Cleide, A.L. Giani, R.S. Márcia, S.L. Viviane, C.G. Zilda, Chemical composition and antifungal activity of essential oil and fractions extracted from the leaves of Laurus nobilis nobilis nobilis L. cultivated in Southern Brazil, J. Med. Plants Res. 10 (2016) 865–871

doi:10.5897/JMPR2016.6291.
[3]. M. Chmit, H. Kanaan, J. Habib, M. Abbass, A. Mcheik, A. Chokr, Antibacterial and antibiofilm activities of polysaccharides, essential oil, and fatty oil extracted from Laurus nobilis nobilis nobilis growing in Lebanon, Asian Pac. J. Trop. Med. 7 (2014) S546–S552. doi:10.1016/S1995-7645(14)60288-1.
[4]. S.M. da Silveira, F.B. Luciano, N. Fronza, A. Cunha, G.N. Scheuermann, C.R.W. Vieira, Chemical composition and antibacterial activity of Laurus nobilis essential oil towards foodborne pathogens and its application in fresh Tuscan sausage stored at 7 °C, LWT - Food Sci. Technol. 59 (2014) 86–93. doi:10.1016/j.lwt.2014.05.032.
[5]. N.J. Fernández, N. Damiani, E.A. Podaza, J.F. Martucci, D. Fasce, F. Quiroz, P.E. Meretta, S. Quintana, M.J. Eguaras, L.B. Gende, Laurus nobilis L . Extracts against Paenibacillus larvae : Antimicrobial activity, antioxidant capacity, hygienic behavior and colony strength, Saudi J. Biol. Sci. (2018). doi:10.1016/j.sjbs.2018.04.008.

Abstract: Biogas production from four batch digesters containing varying mixture of cow dung and Sweet and bitter Orange peel waste was studied for a period of 21 days at ambient temperature. . The maximum yield per Kg of dry solid was attained with the mixtures of cow dung and fruit waste. It was further observed that the highest biogas yield of 650 ml was recorded for sweet orange peel waste of small particle size and the difference in the production of biogas to a large extent depends on the nature of the substrate and other factors such as pH and C: N ratio etc. Throughout the entire anaerobic digestion process, the ambient temperature for digestion ranged from 26°C to 32°C and there was little temperature variation effect on biogas production once biogas production began. This tool is useful in optimizing biogas production from energy materials, and requires further validation and refinement of the processes

Keywords: sweet orange , bitter orange, volatile solids, particle size, carbon: nitrogen, storage days

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Abstract: The study was done on Boukhrareb river in Fez – Morocco. It is characterised by severe pollution from the domestic and industrial wastewater discharge produced by the city itself into the Boukhrareb river without any treatment. Coagulation-flocculation treatment has been used to reduce the turbidity and remove heavy metals from Boukhrarebriver especially Mercury which is the one of the most toxic heavy metals. Aluminium Sulphate was the coagulant used. After treatment, the turbidity of the sample decreased directly from 1093 to 4,1. Also, The pH reduced from moderate alkanity type to neutral. Moreover, the heavy metals decreased too ; Mercury has been decreased from 68 to -0.003 mg/L, Al from 2.83 to 0.2728mg/L, Phosphorus from 3.2 to 0.5379mg/L and Potassium from 13.5 to 5.62. This..........

Keywords: Coagulation-flocculation, Drinking water, River treatment, Turbidity. This work was supported by Major Science and Technology Program for Water Pollution Control and Treatment (2017ZX07207004) and National Natural Science Foundation of China (21603164).

[1]. SAMIRA AZZAOUI, M.E.H.E.M.L., <Copper, Lead, Iron and Manganese in the Sebou Drainage Basin; Sources and Impact on Surface Water Quality>. Water Qual. Res. J. Canada, 2002. Water Qual. Res. J. Canada, 2002 Volume 37(4): p. 773-784.
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Abstract: The root bark of Cochlospermum tinctorium ( local name Rawaya) is used in the treatment of various disease in man such as diabetes, yellow and malaria fever in Nigeria but in other parts of the world, is used against intestinal worms, bilharzia and gastro-intestinal disease like ulcer. Cochlospermum tinctorium is a savannah plant found in farm across Northern Nigeria. In the present study, the dye extracts obtained from the bark of C .tinctorium was used in the dyeing of cotton, silk and polyester fabrics. The fabrics were assessed for antimicrobial and fastness properties. The antimicrobial assessment was performed quantitatively by disc diffusion method, parallel streak method and quantitatively by percentage reduction test against the test organisms Escherichia coli and..........

Keywords: Mordant, silk, polyester, cotton, Cochspermum tinctorium

[1]. Acid/Alkaline PerspirationIS97-1956
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Abstract: Monoazo disperse dyes were synthesized from 4- aminobenzaldehyde and 4 – amino -3- nitrobenzaldehyde as diazo components. The Diazonium solutions from both components were coupled to various coupling components such as 1-naphthol, 2-naphthol, resorcinol, phloroglucinol and phenol to produce series of dyes with hydroxyl group(s). The physical characteristics of the dyes such as melting point, molecular weight, yield and colour were studied. The dyes were characterized using Ultraviolet, Infrared and Gas chromatography - mass spectrometry.........

Keywords: 4 – amino -3- nitrobenzaldehyde, exhaustion, washfastness, phloroglucinol and disperse dyes

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Abstract: New classes of quinoline derivatives 2a, b, 7a, b, diazepine derivatives 3a, b, 8a, b, pyrimidine derivatives 4a, b, 5a, b; 6 had been synthesized, via reactions between visnagine carbaldehyde 1 and different reagents. The structures of the products were elucidated by spectra and elemental analyses. In the present work, the derivative products have been tested, along with reference compounds, for their cytotoxic potential against two tumor cell lines. The anticancer activity results indicated that the products 3b, 5b and 7b showed growth inhibition activity against HEPG2 cell line and products 4b, 6, and 8a showed growth inhibition activity against MCF-7. Moreover, we attempted..........

Keywords: anticancer activity, cytotoxicity, diazepine, human cancer cell lines, molecular docking, quinoline, Pyrimidine.

[1]. Qiu-ju Zhou, Yu Wan, Xiao-xiao Zhang, Li-zhuo Zhang, Huan Zou a, Hao Cui, Sheng-liang Zhou, Hai-ying Wang, Hui Wu, The first example of glucose-containing carbene Brønsted acid synthesis and catalysis: efficient synthesis of five substituted tetrahydropyridines, Tetrahedron 71, 2015, 7070-7072.
[2]. Veeranarayana Reddy Mudumala , , Radha Rani Chinthaparthi , Tae Jeong Yeon , FeCl3-catalyzed three-component reaction: a novel synthesis of tetrahydro-2,6-dioxopyrimidin-4-yl-2,3-dihydrophthalazine- 1,4-dione derivatives under solvent-free conditions, Tetrahedron 70, 2014, 3762-3769.
[3]. Amol BaluAtar, Yong Seok Jeong, Yeon Tae Jeong, Iron fluoride: the most efficient catalyst for one-pot synthesis of 4H-pyrimido [2, 1 b] benzothiazoles under solvent-free conditions, Tetrahedron 70, 2014, 5207-5213.
[4]. BodakuntlaThirupathaiah,MudumalaVeeranarayanaReddy, Yeon Tae Jeong, Solvent-free sonochemical multi-component synthesis of benzopyranopyrimidines catalyzed by polystyrene supported p-toluene sulfonic acid, Tetrahedron 71, 2015, 2168-2176.
[5]. Vijay Vilas Shinde, Yeon Tae Jeong, Organic-base-catalyzed diversity-oriented synthesis of novel pyrimido [1, 2-b] indazole-3-carbonitrile, Tetrahedron 72, 2016, 4377-4382.

Abstract: The chemistry of Schiffs Base containing an active imine linkage has assumed important because of their versatility in the synthesis of many additivesand application of in the metal working fluids. Schiff base of N,N-bis-(p-dimetylaminobenzylidenediaminopropanand its metal complexes have been synthesied. All the prepared compounds were characterized by their spectral(IR, NMR) and screened for their antimicrobial activities. We have been synthesized and applied these compounds as additives in the oil based metal working fluids.In addition to these, in the formulation of cutting fluids were also included contact synthesized N-containing compounds having antifungi, antibacterial and other useful properties..

Keywords: antibacterial, antifungal, Schiff bases, metal complexes

[1]. S.Chakraborty, T.Bhattacharye, T.N.Patel, and K.K.Tiwari, Biodegradation of phenol by native microorganisms isolated from coke processing wastewater // Journal of Environmental Biology, 2010, pp 293-296.
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Abstract: Fabrication of copolymer membrane was done in DMP and then these films were reacted through HA in water solution. In the duration of amidoximation, nitrile group of copolymer films were changed into amidoxime group. The original film and amidoximated acrylic copolymer membranes were characterized by using different types of techniques like FTIR, TGA, X-ray and SEM etc. some noticeable changes in the copolymer characteristics were seen during amidoximation method as thermal behavior, exterior morphology and hydrophilicity etc.

Keywords: copolymer; amidoximation; characterization; thermal behavior; exterior morphology.

[1]. N. A. M. Zahri et al., Improved Method for Preparation of Amidoxime Modified Poly (acrylonitrile-co-acrylic acid): Characterizations and Adsorption Case Study, Polymers, 7, 1205-1220, 2015.
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Abstract: The manganesemonoselenidesolubilityinα-CuInSe2hasbeendeterminedbystudyingphaseequilibria in the CuInSe2–MnSe system using differential thermal analysis, x-ray diffraction, microstructural analysis, and microhardness measurements. At room temperature, the α-CuInSe2-based solid solution extends to 46 mol % MnSe.

Keywords: solid solution, eutectic, chalcogenide, microhardness

[1]. Sovremenniye problemy polyprovodnikovoy fotoenergetiki(Modern problems of semiconductor photoenergy) Per. s angl../FonashS., Rotvorf A., Kazmerski L., et.all; Pod. red.Т. Коutsa, J. Мikinа./- М.: Мир, 1988.-307с.
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Abstract: The resistance to corrosion due to the presence of Harpulia Arborea leaves (HAL) extract on mild steel specimen in the presence of corrosive medium was examined by different kinds of techniques such as weight loss measurement, Immersion time, Electrochemical impedance spectroscopy, potentiodynamic polarization, Effect of temperature, Kinetics and Thermodynamic parameters and SEM morphology. The corrosion rate was decreasing with increase in concentration of the extract. The inhibition efficiency was increasing as the concentration of the extract was increased in the potentiodynamic polarization technique and the Tafel graph indicates that the.......

Keywords: Corrosion inhibitor, EIS, SEM, polarization, kinetic parameters.

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[3]. Rafael Martinez Palou, Octavio Olivares-Xomeltand Natalya V. Likhanova,"Environmentally Friendly Corrosion inhibitorsˮ.
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Abstract: Coconutshellisused to produceactivatedcarbon, by the chemicalmethodwithphosphoricacid and 48 hourssoaking time. Carbonizationwascarried out at twodifferenttemperatures of 500 to 700 ° C. Lateractivatedwith standards ASTM D 1348-94 and 1755-95 D to determine the moisture and ashsamplewascharacterized. The textural properties of activatedcarbonwith the method of Brunauer-Emmett-Teller (BET), using N2 adsorption weredetermined, the best resultwas for the activatedcarbontreated to 700 °C, whichgives as a resultone'sisotherm of type II according.........

Keywords: activated carbon, adsorption.macroposous

[1]. Comunicado de prensa no 001. La industria del coco en México con proyección de crecimiento del 28%: CONACOCO [Consulta 02-02.2016] Disponible en: http://www.conacoco.com.mx/coco/nueva/boletines/BoLETIN_COCO_01_consumo.pdf
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[4]. M. K. B. Gratuito, T. Panyathanmaporn, R. A. Chumnanklang, N. Sirinuntawittaya, A. Dutta, "Production of activated carbon from coconut shell: optimization using response surface methodology", Bioresource Technology 99, 11, 2008, pp. 4887-4895.
[5]. A. M. Puziy, O. I. Poddubnaya, A. Martıínez-Alonso, F. Suárez-Garcı́a, J. M. D. Tascón, "Synthetic carbons activated with phosphoric acid: I. Surface chemistry and ion binding properties", Carbon, 40, 9, 2002, 1493-1505..

Abstract: Soil found in the Himalayas are diverse in character depending upon altitude,vegetation cover, slope, structure and stage. Most of the soils is this region are acidic in nature. The soil of this state is known as mountainous forest soil. The aim of the present investigation is to study physico-chemical properties of the soil samples collected from different sites in Uttarakhand Himalayas. The area under study is located from 770 east longitude to 700 20 east longitude and 300 North latitude to 300 30 north latitude with the altitude from 330 to 2000 meter from sea-level. The physical and chemical properties of soil were determined on the basis of methods described by Black (1965) and Jackson (1967) in different season at different sites. On the basis of analysis, it was found that physical and chemical attributes of soil differ in season and site wise. The results indicated that the nitrogen content, organic matter and water holding capacity was higher in pre-monsoon season. Calcium and Magnesium concentration was more is post-monsoon season at some sites. There was also a interrelationship between pH and nitrogen, nitrogen is less in post-monsoon season than in pre-monsoon as compared to pH.

Keyword: Altitude, Acidic, Mountainous, Vegetation

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