extraction of essential oil from lemongrass using supercritical carbon dioxide

... method for the extraction of bioflocculants from activated sludge. Key words: activated sludge, bioflocculants, flocculating activity Introduction Flocculants are used in a wide range of ... The present study aimed to develop an effective extraction method for bioflocculants from activated sludge. Microbial polymers obtained from activated slud...

Ngày tải lên: 05/09/2013, 09:08

... treatment of palm oil mill effluent (POME) using a hybrid up-flow anaerobic sludge bed (HUASB) reactor S. A. Habeeb, AB. Aziz Abdul Latiff, Zawawi Daud, Zulkifli Ahmad Faculty of Civil and ... between a classical UASB and hybrid UASB-filter reactor. Water Science and Technology. 2004;49(11):295–301. [3] Rajakumar R, Meenambal T. Com...

Ngày tải lên: 05/09/2013, 16:11

... simultaneously essential oil and shikimic acid from star anise fruits. With this method, obtaining yield of essential oil and shikimic acid respectively are 9.5% and 5.6% (essential oil content and shikimic ... Sciences and Technology 26 (2010) 110-113 113 for obtaining simultaneously essential oil and shikimic acid from star anise...

Ngày tải lên: 12/02/2014, 17:20

... in Vietnam has been described. In this paper, the chemical composition of essential oil of Machilus Japonica Siebold & Zucc. (Lauraceae) from Vietnam will be discussed. The essential oil ... Journal, Vietnam 2 College of Science, VNU, 334 Nguyen Trai, Hanoi, Vietnam Received 29 October 2008 Abstract. Chemical composition of essential oi...

Ngày tải lên: 12/02/2014, 17:20

... evaluation, since the nature of the data is different from that of the QA dataset. Most of the questions asked over the Web target named entities like specific car brands, places and actors. There is usually ... of the methods are suitable for retrieval of numerical attributes. How- ever, most of them do not exploit the numerical nature of the attribute d...

Ngày tải lên: 20/02/2014, 04:20

... Article Preparative isolation and purification of six volatile compounds from essential oil of Curcuma wenyujin using high-performance centrifugal partition chromatography Six volatile compounds, ... (4), 1,8- cineole (5) and b-elemene (6), were successfully isolated from the essential oil of Curcuma wenyujin by high-performance centrif...

Ngày tải lên: 07/03/2014, 21:20

... extract definitions of four types using a combination of a rule-based grammar and machine learning. We col- lected a Dutch text corpus containing 549 definitions and applied a grammar on it. Machine ... only machine learning or only a grammar and not a combination of the two and (2) they do not distinguish different defini- tion types. The advantage of using a combina- tion...

Ngày tải lên: 08/03/2014, 21:20

... Patent Application, WO2007099352, 2007 EXTRACTION OF LIQUID CRYSTALS FROM FLAT PANEL DISPLAY DEVICES USING BOTH LIQUID AND SUPERCRITICAL CARBON DIOXIDE A.J. Hunt * , J.H. Clark, S.W. Breeden, ... that both liquid and supercritical carbon dioxide are effective and environmentally benign solvents for extraction of liquid crystals fro...

Ngày tải lên: 28/04/2014, 10:50

... Article Extraction of 3D Information from Circular Array Measurements for Auralization with Wave Field Synthesis Diemer de Vries, Lars H ă orchens, and Peter Grond Laboratory of Acoustical Imaging ... pressure of the incident plane wave. A simulation of the arrival time curves of three plane waves with elevation angles θ = 0 ◦ ,30 ◦ ,and70 ◦ is shown in...

Ngày tải lên: 22/06/2014, 19:20

... curcumin, was isolated from dried rhizomes of Curcuma longa using Soxhlet, microwave, ultra- sonic and supercritical carbon dioxide assisted extraction techniques. The quantifica- tion of curcumin in resultant ... 2011 Keywords: Curcumin Microwave assisted extraction Soxhlet assisted extraction Supercritical carbon dioxide assisted extraction...

Ngày tải lên: 01/07/2014, 13:23

... Removal of heavy metals from wastewater using agricultural and industrial wastes as adsorbents Hala Ahmed Hegazi Housing, Building and Research Center, Egypt Received ... 2013 KEYWORDS Adsorption; Adsorbents; Agricultural wastes; Industrial waste; Heavy metals; Wastewater Abstract Adsorption processes are being widely used by various researchers for the...

Ngày tải lên: 20/07/2014, 12:47

... 79 Preliminary Studies for Production of Fatty Acids from Hydrolysis of Cooking Palm Oil Using C. rugosa Lipase N.A. Serri, A.H. Kamarudin*, S.N. Abdul Rahaman School Of Chemical Engineering, ... conversion of fatty acid. 8 The optimum oil loading is 0.1 g/ml iso-octane. 3.4 Effect of Temperature The conversion of fatty acids prod...

Ngày tải lên: 07/08/2014, 14:20

... 21:413-419. 38. Lindberg L, Liao Q, Steen S: The effects of epinephrine/ nore- pinephrine on end-tidal carbon dioxide concentration, coro- nary perfusion pressure and pulmonary arterial blood flow during cardiopulmonary ... tension and mean arterial blood pressure in out -of- hospital cardiopulmonary resuscitation: an observational study Stefan M...

Ngày tải lên: 13/08/2014, 03:20

... Physicochemical Properties of Lemongrass Oil 32 Table 5: Physicochemical Properties of main components of essential oil 34 Table 6: Investigation of SC CO 2 extraction of essential oil from lemongrass 38 Table ... results of essential oil from Lemongrass, Leaves (RSM) 169 Appendix I: Analyses results of essential oil from Lemongrass, stems (RSM)...

Ngày tải lên: 13/11/2014, 06:25

... the lexical of collocation, and Choueka tends to research aspects of syntactic function of collocation in the text. The definition of Benson is one of the most commonly-used, but it ignores a number of ... extracted collocations for? ã Concept of Vietnamese collocation and extraction Vietnamese collocations. 2.1 Collocations’ characteristics According to the definiti...

Ngày tải lên: 25/03/2015, 09:41