extraction of essential oil from lemongrass using supercritical carbon dioxide
Comparison of Methods for the Extraction of Bioflocculants from Activated Sludge
... 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 sludge by four different extraction methods ... extraction methods (steaming extraction, NaOH extraction, SDS extraction, and washing extraction) were compared to develop an effective extraction method for bioflocculants from activated sludge. ...
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A biodegradation and treatment of palm oil mill effluent (POME) using a hybrid up-flow anaerobic sludge bed (HUASB) reactor
... 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. Comparative Study on Start – Up Performance of HUASB and AF ... performance for each hybrid UASB reactor and anaerobic filter (AF) reactor, where the comparison of this study was mainly compared the start-up interval as well as the reactors COD removal efficiencies....
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Tài liệu Báo cáo " Obtaining Essential Oil and Shikimic Acid from Star Anise Fruit (Illicium verum Hook) " ppt
... 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 fruits. The yield of essential oil and shikimic acid were 9.5% and ... shikimic acid obtained by methods N0 1, N0 2 and N0 3 were shown at table 1 and table 2. Table 1. Obtaining simultaneously essential oil and shikimic acid from star anise fruits by...
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Tài liệu Báo cáo " Chemical composition of essential oil of Machilus Japonica Siebold & Zucc. (Lauraceae) from Vietnam " pptx
... 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 2College of Science, VNU, 334 Nguyen Trai, Hanoi, Vietnam Received 29 October 2008 Abstract. Chemical composition of essential oil of Machilus Japonica Siebold & Zucc. (Lauraceae) ... VNU Journal of Science, Natural Sciences and Technology 25 (2009) 81-83 81 Chemical composition of essential oil of Machilus Japonica Siebold & Zucc. (Lauraceae) from Vietnam Pham Van...
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Tài liệu Báo cáo khoa học: "Extraction and Approximation of Numerical Attributes from the Web" pdf
... 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 aresuitable for retrieval of numerical attributes. How-ever, most of them do not exploit the numerical nature of the attribute data.Our research is related to a sub-domain of ... (e.g., the height of a person), whilefor others it is only the center of a distribution(e.g., the weight of a coffee cup). Questionswith no trusted and exact answers were eliminated. From the...
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Preparative isolation and purification of six volatile compounds from essential oil of Curcuma wenyujin using high-performance centrifugal partition chromatography doc
... 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 centrifugal partition chromatography using a nonaqueoustwo-phase ... (5) and b-elemene (6) (Fig. 1) from the essential oil of C. wenyujin. GC-MS analysis showed that the six isolated compounds except curcumol (2) were the majorcomponents in the essential oil of...
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Báo cáo khoa học: "Extraction of definitions using grammar-enhanced machine learning" pdf
... extract definitions of fourtypes using a combination of a rule-basedgrammar and machine learning. We col-lected a Dutch text corpus containing 549 definitions and applied a grammar on it. Machine ... only machine learning oronly a grammar and not a combination of the twoand (2) they do not distinguish different defini-tion types. The advantage of using a combina-tion of a grammar and machine ... (2008) applied machine learningon unstructured texts using a balanced classifierand obtained a precision of 0.21, a recall of 0.69and an f-score of 0.33 with an overall accuracy of 0.85. These...
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extraction of liquid crystals from flat panel display devices using both liquid and supercritical carbon dioxide
... 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 from display devices. Typically the recovery with liquid carbon ... Demonstration of the disassembly of a defunct LCD Carbon dioxide extraction was carried out using a Thar Technologies SFE-500F-2-FMC System and liquid withdrawal carbon dioxide (99.9 %). The extraction...
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Báo cáo hóa học: " Research Article Extraction of 3D Information from Circular Array Measurements for Auralization with Wave Field Synthesis" ppt
... Article Extraction of 3D Information from Circular Array Measurements for Auralization with Wave Field SynthesisDiemer de Vries, Lars Hăorchens, and Peter GrondLaboratory of Acoustical Imaging ... pressure of the incident plane wave. A simulation of the arrival time curves of three planewaves with elevation angles θ= 0◦,30◦,and70◦is shownin Figure 3. The waves reach the array with ... todata space.2. 3D INFORMATION IN CIRCULAR ARRAY DATAThe coordinates, variables, and geometry used in the follow-ing are specified in Figure 1. A circular microphone array with radius R is...
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Optimization of microwave, ultra sonic and supercritical carbon dioxide assisted extraction techniques for curcumin from curcuma longa
... 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 ... 2011Keywords: Curcumin Microwave assisted extraction Soxhlet assisted extraction Supercritical carbon dioxide assisted extraction Ultra- sonic assisted extraction abstractA bio-active phytochemical, curcumin, ... of microwave, ultra- sonic and supercritical carbon dioxide assisted extraction techniques for curcumin from Curcuma longa P.S. Wakte∗, B.S. Sachin, A.A. Patil, D.M. Mohato, T.H. Band, D.B. ShindePharmaceutical...
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Removal of heavy metals from wastewater using agricultural and industrial wastes as adsorbents
... Removal of heavy metals from wastewater using agricultural and industrial wastes as adsorbents Hala Ahmed HegaziHousing, Building and Research Center, EgyptReceived ... 2013KEYWORDSAdsorption; Adsorbents; Agricultural wastes; Industrial waste; Heavy metals; Wastewater Abstract Adsorption processes are being widely used by various researchers for the removal of heavy metals from waste ... utilization possibilities of less expensive adsorbents for the elimination of heavy met-als from wastewater. Agricultural and industrial waste by-products such as rice husk and fly ashhave be used for...
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Báo cáo vật lý: "Preliminary Studies for Production of Fatty Acids from Hydrolysis of Cooking Palm Oil Using C. rugosa Lipase" pot
... 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 produced from the hydrolysis of palm oil using C. rugosa ... DISCUSSION 3.1 Typical Hydrolysis Profile Figure 1 shows a typical hydrolysis profile of palm oil at temperature of 45ºC for an initial palm oil concentration of 0.1 g palm oil/ ml iso-octane at...
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Báo cáo khoa học: " Effects of epinephrine and vasopressin on end-tidal carbon dioxide tension and mean arterial blood pressure in out-of-hospital cardiopulmonary resuscitation: an observational study" pptx
... 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 flowduring cardiopulmonary ... tension and mean arterial blood pressure in out -of- hospital cardiopulmonary resuscitation: an observational studyStefan Mally, Alina Jelatancev and Stefek GrmecCentre for Emergency Medicine Maribor, ... KB, Sanders AB, Otto CW, Ewy GA: Effects of graded doses of epinephrine on both noninvasive and invasivemeasures of myocardial perfusion and blood flow during car-diopulmonary resuscitation....
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extraction of essential oil from lemongrass using supercritical carbon dioxide
... Physicochemical Properties of Lemongrass Oil 32Table 5: Physicochemical Properties of main components of essential oil 34Table 6: Investigation of SC CO2 extraction of essential oil from lemongrass 38Table ... results of essential oil from Lemongrass, Leaves (RSM) 169Appendix I: Analyses results of essential oil from Lemongrass, stems (RSM) 174xAppendix J: Effects of extraction conditions on extraction ... conditions on extraction yield of essential oil from Lemongrass, Leaves (RSM) 177Appendix K: Effects of extraction conditions on extraction yield of essential oil from Lemongrass, Stems (RSM) 184Appendix...
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Extraction of Vietnamese collocation from text corpora trích chọn lọc collocation tiếng Việt từ kho ngữ liệu văn bản
... thelexical 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’ characteristicsAccording to the definition outlined earlier, a collocation ... necessity of building a system to extract Vietnamese collocations. More specifically, we considerthese key questions:ã What are collocations?ã Characteristics of a collocation? How many types of collocations?ã...
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Từ khóa: methods of extraction of essential oilshomogeneous catalysis in supercritical carbon dioxideextraction of dna from viral particles using formamide and ctab naclhow to get essential oil smell out of clotheshow to get essential oil stains out of clothesisolation of viral particles from large water environmental samples using tangential flow filtrationdiscrimination of neurogenic essential hypertension from pheochromocytoma and syndromes of sympathetic activationextraction of all exon sequences of greater than 200 bp from the human genome databasethe production of phoneme strings from unmarked english textthe extraction of termsextraction of proteinprotein interaction informationautomatic extraction of subsegmental primesextraction of entailed semantic relationsautomatic extraction of lexicosyntactic patternsextracting comparative entities and predicates from texts using comparative type classificationchuyên đề điện xoay chiều theo dạngNghiên cứu tổ hợp chất chỉ điểm sinh học vWF, VCAM 1, MCP 1, d dimer trong chẩn đoán và tiên lượng nhồi máu não cấpMột số giải pháp nâng cao chất lượng streaming thích ứng video trên nền giao thức HTTPNghiên cứu vật liệu biến hóa (metamaterials) hấp thụ sóng điện tử ở vùng tần số THzđề thi thử THPTQG 2019 toán THPT chuyên thái bình lần 2 có lời giảiGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitĐỒ ÁN NGHIÊN CỨU CÔNG NGHỆ KẾT NỐI VÔ TUYẾN CỰ LY XA, CÔNG SUẤT THẤP LPWANQuản lý hoạt động học tập của học sinh theo hướng phát triển kỹ năng học tập hợp tác tại các trường phổ thông dân tộc bán trú huyện ba chẽ, tỉnh quảng ninhPhối hợp giữa phòng văn hóa và thông tin với phòng giáo dục và đào tạo trong việc tuyên truyền, giáo dục, vận động xây dựng nông thôn mới huyện thanh thủy, tỉnh phú thọNghiên cứu, xây dựng phần mềm smartscan và ứng dụng trong bảo vệ mạng máy tính chuyên dùngNghiên cứu về mô hình thống kê học sâu và ứng dụng trong nhận dạng chữ viết tay hạn chếNghiên cứu tổng hợp các oxit hỗn hợp kích thƣớc nanomet ce 0 75 zr0 25o2 , ce 0 5 zr0 5o2 và khảo sát hoạt tính quang xúc tác của chúngSở hữu ruộng đất và kinh tế nông nghiệp châu ôn (lạng sơn) nửa đầu thế kỷ XIXChuong 2 nhận dạng rui roTổ chức và hoạt động của Phòng Tư pháp từ thực tiễn tỉnh Phú Thọ (Luận văn thạc sĩ)Giáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtTrách nhiệm của người sử dụng lao động đối với lao động nữ theo pháp luật lao động Việt Nam từ thực tiễn các khu công nghiệp tại thành phố Hồ Chí Minh (Luận văn thạc sĩ)Chiến lược marketing tại ngân hàng Agribank chi nhánh Sài Gòn từ 2013-2015