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Volume 1 Issue 2

S.No. Title & Authors Page No View
1

Title : Development of A New Biosorbent Based on The Extract Residue of Marine Alga Sargassum Vulgare: Application in Biosorption of Volatile Organic Compounds

Authors : M. Tarbaoui, M. Oumam, S. Fourmentin, M. Benzina, A. Bennamara, A. Abourriche

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The objective of this study is the valorization of a sub-product of marine alga; it is the extract residue of the marine alga Sargassum vulgare, which represents more than 80% of the weight of the raw material. It is a natural residue that  we  could  turn  into  biosorbent  under  the  effect  of  chemical  activation  with  phosphoric  acid  which  allows  the development of a large pore in the activated material.  To optimize the conditions for elaboration of our biosorbent, experimental design was applied to reduce the number of experiment trials needed to evaluate  some parameters (percentage of phosphoric acid, temperature and time of activation) and their  effects on the responses (capacity of biosorption of methylene blue, yield biosorbent).  The product obtained under the optimal conditions has good textural and structural properties and development of surface functions.  The application of optimized biosorbent in the treatment of gaseous effluents, has revealed its efficiency and significant biosorption properties towards some volatile organic compounds i .e.  the toluene, the cyclohexane and the ethylbenzene.

01-05
2

Title : Chemical Analysis: A Common Medicated Oil Base use in Ayurveda

Authors : H G S P Hewageegana, L A D M Arawwawala

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Abstract :

Medicated oil preparation process is named as Sneha Kalpana in Ayurveda and they are used to treat wide range of diseases. Medicated oils are prepared by prolonged cooking with coconut/ king coconut oil, sesame oil, different crude oils like castor oil, mustard oil, ghee and substances like, Kalka (herbal paste prepared by different parts of botanicals), Kvatha (specifically prepared decoction in accordance of Ayurvedic principles) or Drava Dravya (any other liquid such as milk, self-expressed juices, etc.). A considerable amount of sesame oil and ghee is present in many medicated oils such as Dashamooladi Ghrita, Chitrakadi Ghrita, Baladi Ghrita, Nirghundi Taila, Ashwandha Ghrita, Vipadikahara Ghrita, Moolaka Taila, Sacharadi Taila, Swandranstha Taila and Rasna Taila. Therefore, it is very important to assess the quality of the base consist of sesame oil and ghee. The objective of the present study was to evaluate the quality in terms of specific gravity, refractive index, acid value, saponification value and development of TLC profile of the base consists of sesame oil and ghee in a ratio of 1:1 w/w by using standard protocols. Results revealed that specific gravity, acid value, saponification value, peroxide value and iodine value were 0.91± 0.00, 2.00 ± 0.06 KOH/g, 431.57 ± 1.43 mg/g, 1.33 ± 0.06 Meq/kg and 56±1.04 g I2/100g respectively. TLC fingerprint profiles were developed using 3 solvent systems. In conclusion, present study will help to establish quality control parameters of base of medicated oils which consist of sesame oil and ghee in a ratio of 1:1 w/w.

06-08
3

Title : Extraction and Recovery of Bioactive Metabolites from Marine Sponge“Ircinia spinulosa”

Authors : Z. Rhandour, M. Tarbaoui, M. Oumam, B.ElAmraoui, A. Bennamara, A. Abourriche

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Abstract :

Oceans cover more than 75% of our planet. In some ecosystems, such as coral reefs, experts believe that biodiversity is greater than that of tropical forests. Morocco, with its double facade Atlantic and Mediterranean, long of more than 3500 km, is a country deeply influenced by the sea, which implies the existence of thousands of marine species by reports in other countries. Currently, marine organisms are a very important source of new molecules in pharmacology and thus in the development of new bioactive products. Sponges, in particular, given their very primitive origin and persistence during evolution, have developed a chemical defense system. This study aims the biological valorization of crude extract from a marine sponge collected in Atlantic coastal El Jadida: Ircinia spinulosa. The chemical study of Ircinia spinulosa, marine sponge was realized for the first time in Morocco, and revealed that this sponge contains different levels of primary and secondary metabolites. Analysis of fatty acids in the lipid extract of Ircinia spinulosa is performed by gas chromatography coupled with mass spectrometry (GC-MS) was used to determine the predominance of acid Palmitic. This molecular diversity of sponges has a large deposit of biological and biomedical potential. What pushed us to continue the research to isolate new and original molecules.

09-13
4

Title : To Study Antimicrobial Activities of Essential Oils Against MDR Clinical Isolates of Pseudomonas aeruginosa

Authors : Meghna R.Choudhari

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Pseudomonas aeruginosa is commonly resistant to antibiotics, and because of this it is a dangerous and dreaded pathogen. Case-fatality rates are due to drug resistance profile of Pseudomonas. Overuse of drug has enhanced resistance causing havoc of rapid spread of this organism. Examining present scenario it is mandatory to look for medicine readily available from natural resources. Essential oils are sources of novel antimicrobial compounds. Traditional medicines are trusted as a source of potential antimicrobial agents thus essential oil from sources like medicinal plants, herbs and spices are used. The true purpose of this study was to reveal the antibacterial properties of essential oil such as Cinnnamomum zylanicum (Dalchini oil), Eucalyptus globulus (Nilgri oil), Eugenia caryophyllata (Clove oil), Ocimum sanctum (Tulsi oil), Allium sativum (Garlic oil) against MDR strains of P. aeruginosa.These MDR strains possessed resistance for antibiotics Gentamicin (GEN) Meropenem (MRP), Cefazolin (CZ), co-trimoxazole (COT). These oils expressed antimicrobial activity against clinical isolates of Pseudomonas aeruginosa.The Cinnnamomum zylanicum oil had strong inhibitory activity against multidrug resistant strains as compared with other oils. Oils potentially inhibit biofilm producing MDR strains.

14-17
5

Title : Vector Control of a Doubly-Fed Induction Generator by Using a Classical PI and a fuzzy PI Controllers

Authors : Fatima-Ezzahra BOUNIFLI, Abdelhadi EL MOUDDEN, Aicha WAHABI, Abdelhamid HMIDAT

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This work deals with the conversion of wind systems in order to improve the quality of the provided energy. To this end, we are interested in the modeling and the simulation of a Doubly-Fed Induction Generator (DFIG) with a wound rotor used in the electromechanical conversion of wind systems. In this paper, we carried out the modeling and the direct and indirect vector control of the (DFIG) by using a classical PI controller and then a fuzzy logic PI controller.

The aim of these control systems is to minimize the interaction between active and reactive power and to ensure an efficient decoupling by the use of two algorithms: fuzzy logic control and classical control.  The algorithms are developed and tested under Matlab/Simulink.

18-24
6

Title : Performance of Ova Water User Association in Konya - Turkey

Authors : Ilker Cihan, Bilal Acar

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The aim of the study was to assess performance of Ova Water User Association (OWUA’s) at Konya-Çumra province of Turkey. In research, as performance indicators, mainly water delivered, financial and production performance were analyzed. The results showed that annual water delivery per command and irrigated areas varied from 10360 to 13240 m3/ha and from 5958 to 7848 m3/ha, respectively. Irrigation ratio was between 132% and 192%. Unit area per staff was found as 0.0012 staff/ha. Money collection ratio was found as about 75 % for the average of last six years. The average production output or income for the year of 2014 was calculated as about 1210 $/ha. Although water shortage is the most important serious problem in our region, agriculture is still the single maximum water user sector even more than the world average of 70%. For sustainability of water supplies in region, efficient water use especially in agriculture can be strongly recommended.

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