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Now showing items 32-51 of 117

Densities, speeds of sound, and refractive indices for binary mixtures of 1-butyl-3-methylimidazolium methyl sulphate ionic liquid with alcohols at T = (298.15, 303.15, 308.15, and 313.15) K

Singh, Sangeeta; Aznar, Martin; Deenadayalu, Nirmala (Elsevierhttp://dx.doi.org/10.1016/j.jct.2012.08.030, 2012-09-24)

Experimental densities, speeds of sound, and refractive indices of the binary mixtures {1-butyl-3-methylimidazolium methylsulphate ([BMIM]+[MeSO4]−) + methanol, or 1-propanol, or 2-propanol, or 1-butanol} were measured ...
Density, speed of sound, and refractive index measurements for the binary systems (butanoic acid + propanoic acid, or 2-methyl-propanoic acid) at T = (293.15 to 313.15) K

Bahadur, Indra; Deenadayalu, Nirmala; Naidoo, Paramespri; Ramjugernath, Deresh (Elsevierhttp://www.sciencedirect.com/science/article/pii/S0021961412002972/pdfft?md5=a197b9c7a43c294a3c9c9d5380142c17&pid=1-s2.0-S0021961412002972-main.pdf, 2012-09-17)

Density, speed of sound, and refractive index for the binary systems (butanoic acid + propanoic acid, or 2-methyl-propanoic acid) were measured over the whole composition range and at T = (293.15, 298.15, 303.15, 308.15, ...
Derivatives of coumarins, cinnamic acid and tyramine from leaves of Limonia crenulata

Pitchai, P.; Ulagi, R.; Mohan, P. S.; Gengan, Robert Moonsamy (Pharmascopehttp://pharmascope.org/ijrpp/jdownloads/Volume%203/Issue%201/03-9-12.pdf, 2013)

The present research was designed to isolate the Coumarins, Cinnamic acid and Tyramine from Leaves of Limonia crenulata . N - benzoyl tyramine and 2,4 - dihydroxy - 3 - methoxy cinnamic acid were isolated for ...
Design and operation of a laboratory scale photobioreactor for the cultivation of microalgae

Bhola, Virthie (2011)

Due to greenhouse gas emissions from fossil fuel usage, the impending threat of global climate change has increased. The need for an alternative energy feedstock that is not in direct competition to food production has ...
Detection and quantification of nitrifying bacteria from South African biological nutrient removal plants

Ramdhani, Nishani (2013-07-30)

Nitrification is a crucial step in biological nutrient removal (BNR) processes, mostly carried out by a group of nitrifying bacteria which includes ammonia-oxidising bacteria (AOB) and nitrite-oxidising bacteria (NOB). ...
Detection methods of organic acid in steam/water circuits and optimisation using HPLC-UV

Ramrung, Arthi (2009)

This study was mainly a response to a challenge faced by ESKOM in its coal-fired power stations. In spite of using high purity water to drive the turbines, the latter were damaged by ‘pitting’, possibly related to acids ...
Determination of the heterotrophic and autotrophic active biomass during activated sludge respirometric batch assays using molecular techniques

Ismail, Arshad (2008)

Activated sludge models now in use worldwide for the design and operation of treatment systems use hypothetical concentrations of active organisms. In order to validate and calibrate model outputs, concentrations and ...
Determining the contribution of lunchbox content to the dietary intake of girls (13-18 years old) in a high school in Lindelani

Hlambelo, Nomakhosazana (2013-07-30)

There is lack of data on the dietary intake and patterns of Lindelani adolescents, which necessitates comprehensive nutritional assessment. Objectives: The objectives were to investigate the dietary intake and nutritional ...
Development of a starter culture for the production of Gari, a traditional African fermented food

Edward, Vinodh Aroon (2010)

Cassava, (Manihot esculenta Crantz), is used for the production of a variety of West African foods and ranks fourth in the list of major crops in developing countries after rice, wheat and maize. Gari is one of the most ...
Development of nutrition education material for caregivers of immune compromised children in children's homes in the Durban area

Grobbelaar, Hendrina Helena (2011)

Nutrition plays a fundamental role in the care and support of people living with the Human Immunodeficiency Virus (HIV) and children in particular are affected by HIV and the Acquired Immunodeficiency Syndrome (AIDS) ...
Dietary modulation of the human colonic microbiota through plant-derived prebiotic compounds

Kassim, Muhammad Arshad (2007)

The human gut microbiota play a major role in host health, and attempts are being made to manipulate the composition of the gut microbiota-increase the composition of bacterial groups, such as lactobacilli and bifidobacteria ...
Draft genome sequence of the rubber tree Hevea brasiliensis

Rahman, Ahmad Yamin; Usharraj, A. O.; Misra, B. B.; Thottathil, G. P.; Jayasekaran, K.; Feng, Y.; Hou, S.; Ong, S. Y.; Ng, F. L.; Lee, L. S.; Tan, H. S.; Sakaff, M. K. L. M.; Teh, B. S.; Khoo, B. F.; Badai, Siti Suriawati; Aziz, Nurohaida Ab; Yuryev, A.; Knudsen, B.; Dionne-Laporte, A.; Yu, Q.; Langston, B. J.; Freitas, A. K.; Young, A. G.; Chen, Rui; Wang, L.; Najimudin, N.; Saito, J. A.; Alam, Maqsudul; Mchunu, Nokuthula Peace (BioMed Centralhttp://dx.doi.org/10.1186/1471-2164-14-75, 2013)

Background Hevea brasiliensis, a member of the Euphorbiaceae family, is the major commercial source of natural rubber (NR). NR is a latex polymer with high elasticity, flexibility, and resilience that has played a ...
The effect of thermal processing on fumonisin B1 (FB1) levels in maize-based foods

Odhav, Bharti; Mohanlall, Viresh; Mohanlall, Rakesh (Academic Journalshttp://www.academicjournals.org/AJFS/PDF/Pdf2013/Mar/Mohanlall%20et%20al.pdf, 2013-03-15)

Fumonisin B1 (FB1) is a mycotoxin from Fusarium verticillioides that is frequently associated with maize. Fumonisins have been implicated as the causal agents of a variety of animal diseases and are epidemiologically ...
Elucidation of the microbial community structure within a laboratory scale activated sludge process using molecular techniques

Padayachee, Pamela (2006)

The microbial community present in a laboratory-scale modified Ludzack-Ettinger activated sludge system was investigated using a combination of novel molecular techniques. The parent system was investigated for a duration ...
Enhanced production of inulinase from Xanthomonas campestris pv. phaseoli

Naidoo, Kameshnee (2010)

Xanthomonas campestris pv phaseoli produced an extracellular endoinulinase on various carbon sources. The highest inulinase production of 9.24 ± 0.03 IU ml¯¹by X. campestris pv. phaseoli was attained using an optimized ...
The essential oil from Cymbopogon validus

Naidoo, Nelisha (2007)

The chemical and biological properties of the essential oil from Cymbopogon validus were investigated. Hydro-distillation was used to extract the oil from C. validus, the flower-heads, leaves, culms and rhizomes. The ...
Evaluation of bacteriological techniques, sensory evaluation, gas chromatography, and electronic nose technology for the early detection of Alicyclobacillus acidoterrestris in fruit juices

Harrichandparsad, Zeenat (2007)

Alicyclobacillus acidoterrestris is a spore-forming spoilage micro-organism found in fruit juices whose spores are not destroyed by typical pasteurisation. Once its spores outgrow and multiply in finished juice products, ...
The evaluation of liquid hydrocarbon contamination of soil around petrochemical tank farms at a Durban refinery

Ramluckan, Krishan (2004)

The primary objective of this study was to determine the levels of liquid hydrocarbon contamination present in the soil within the SAPREF refinery. The secondary objective arising from this was the development of a gas ...
Evaluation of traditional South African leafy plants for their safety in human consumption

Mudzwiri, Mashudu (2007)

Eighteen traditionally leafy vegetables consumed as food or medicinal compounds by a majority of people in the KwaZulu Natal province of South Africa were analysed for the presence of potentially harmful chemicals ...
Excess molar volume and isentropic compressibility for binary or ternary ionic liquid systems

Bahadur, Indra (2010)

The thermodynamic properties of mixtures involving ionic liquids (ILs) with alcohols or alkyl acetate or nitromethane at different temperatures were determined. The ILs used were methyl trioctylammonium bis(trifluorome ...

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