African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12487

Table of Content: 4 October 2007; 6(19)

October 2007

Microbiological quality of some brands of intravenous fluids produced in Nigeria

Microbiological quality of some brands of intravenous fluids produced by some pharmaceutical companies in Nigeria was investigated. Membrane filtration method was used for concentration of contaminating organisms in the intravenous fluids. Thioglycollate medium, Tryptone Soya broth, Brilliant Green Agar, Pseudomonas medium, Mannitol salt agar, MacConkey agar, and Nutrient agar and Saboraud dextrose agar were the media...

Author(s): Atata, R. F., Ibrahim, Y. K. E. Akanbi, A. A., Abdul, I. F., Sani, A., and Ahmed, R. N.

October 2007

A study of blood and gastro-intestinal parasites in Edo state

A four-year study to determine the prevalence of both blood and gastro-intestinal parasites of man was done in all the eighteen local government areas of Edo State, Nigeria. The study, which commenced in January of 2000, ended in December of 2004. Of the 136,360 samples examined, 1000 that is 0.7% had parasites. A total of eleven parasites species were identified. A seasonal pattern of parasitic infection was noted with...

Author(s): R. M. Mordi and Paul Obele Acha Ngwodo

October 2007

Evaluation of the binder effects of the gum mucilages of Cissus populnea and Acassia senegal on the mechanical properties of paracetamol tablets

A comparative study has been carried out to investigate the binder effects of the gums ofCissus populnea and Accasia senegal on the mechanical properties of paracetamol tablets. Tablet mechanical properties evaluated include the packing fraction (Pf), the tensile strength (T) and the brittle fracture tendency (BFI). Varying concentrations of the gum mucilage ranging from 1 - 15% (w/v) was prepared and...

Author(s): Eichie, F. E. and Amalime, A. E.

October 2007

Antibacterial effects of Balanites aegyptiaca L. Drel. and Moringa oleifera Lam. on Salmonella typhi

The aqueous and organic leaves extracts of Balanites aegyptiaca and Moringa oleifera traditionally used for the treatment of infectious disease were tested for their activity against Salmonella typhi isolated from blood clot culture using the disc diffusion method. Extracts of B. aegyptiaca demonstrated higher activity (16 mm zone of inhibition) than those of Moringa oleifera (8 mm zone of inhibition) at 100 mg/ml. Of...

Author(s): Doughari, J. H., Pukuma, M. S. and De, N.

October 2007

Antifungal activity of Comamonas acidovorans isolated from water pond in south Jordan

A bacterial strain identified as Comamonas acidovorans NB-10II was isolated from water pond in South Jordan. It was found to have an antifungal activity against filamentous fungi (Aspergillus niger SQ 40, Fusarium oxysporium SQ 11,Verticillium dahliae SQ 42), yeasts (Saccharomyces cerevisiae SQ 46, Candida albicans SQ 47). All gram-positive bacteria (Bacillus...

Author(s): Nasser M. El-Banna

October 2007

Evaluation of four improved soybean varieties under different planting date in relayed cropping system with maize under soybean/maize/cassava intercrop

Field experiments were conducted at Ibadan; Southwest Nigeria in 2001 and 2002 to evaluate the effects of relayed intercropping of four improved soybean varieties with maize in soybean/maize/cassava intercropped. Intercropping depressed maize grain yield and cassava fresh tuber yield. The response observed in the yields of maize and cassava under different soybean varieties in intercropping systems with maize and...

Author(s): Adeniyan, O. N. and Ayoola, O. T.

October 2007

Cultivation of Agaricus bisporus on some compost formulas and locally available casing materials. Part I: Wheat straw based compost formulas and locally available casing materials

Three compost formulas; wheat straw based and using different activator materials such as wheat brain, chicken manure, and pigeon manure were used for Agaricus bisporuscultivation. Locally available casing materials such as peat of Bolu, peat of Agacbasi, peat of Caykara, and their mixture (80:20; v:v) with perlite were used. Temperature degrees of all of compost formulas were measured during composting at various...

Author(s): Ergun Baysal, Osman Nuri Yigitbasi, Mehmet Colak, Hilmi Toker, Hakan Simsek, and Ferah Yilmaz

October 2007

The influence of temperature, light, salinity and seed pre-treatment on the germination of Sesbania sesban seeds

The germination of Sesbania sesban seeds was studied under controlled environmental conditions. Interactive effects of temperature and light, effects of salinity and effects of different pre-treatments of seeds were studied. Sesbania seeds were placed in Petri dishes with filtration paper and the germination and radical development followed during seven day periods. The seeds generally germinated...

Author(s): Truong Hoang Dan and Hans Brix

October 2007

Assessment of heavy metals in Lake Uluabat, Turkey

The accumulation of heavy metals (Cu, Ni, Zn, Cd, Pb, Cr, B, As) was measured in water, plankton and sediment samples taken from different areas of Lake Uluabat during January 2003 to February 2004. The sequential extraction used in this study is useful to assess the potential mobility of heavy metals in the sediment indirectly. In this study, Cu, Pb, Cr, Cd, Ni and Zn concentrations were detected at higher levels at...

Author(s): AyÅŸe Elmaci, Arzu Teksoy, Fatma Olcay Topaç, Nihan Özengin, Sudan KurtoÄŸlu and Hüseyin SavaÅŸ BaÅŸkaya

October 2007

Influence of discharged effluent on the quality of surface water utilized for agricultural purposes

This article reports on the level of toxic trace metals (Cd, Pb, Mn, Zn, Cu and Ni) in surface water and sediment along the Blaauwbankspruit in the West Rand District of South Africa. This spruit serves as receiving channel of wastewaters from sewage treatment plant and a gold mine. Some physical and chemical influences of released wastewater on the quality of the surface water, which is utilized for agricultural...

Author(s): Awofolu Omotayo Rafiu, Du Plessis Roelien and Rampedi Isaac

October 2007

Biodegradation of chlorobenzene using immobilized crude extracts in packed bed column

Pseudomonas aeruginosa has been identified as potential organism to decomposechlorobenzene by its crude extract through immobilization technique. P. aeruginosawas grown on chlorobenzene as sole source of carbon and energy. Chlorobenzene was used as an inducer to develop specific intracellular enzymes which will decompose chlorobenzene to non toxic substance. Crude cell extracts produced which contains...

Author(s): R. Manikandan, H.J. Prabhu and P. Sivashanmugam

October 2007

Effect of soy protein on serum lipid profile and some lipid-metabolizing enzymes in cholesterol fed rats

The effect of soy protein on serum lipid profile and some lipid metabolizing enzymes in rats fed with cholesterol diets was examined in this study. Rats were subjected to feeding trial over a period of six weeks on formulated diets containing: 20% soy protein with 0% cholesterol (group A), 20% soy protein with 5% cholesterol (group B), 20% soy protein with 10% cholesterol (group C), 0% soy protein with...

Author(s): E. C. Onyeneke, O. M. Oluba, S. I. Ojeaburu, O. Adeyemi, G. E. Eriyamremu, K. E. Adebisi  and O. Adeyemi.

October 2007

Genetic variability of five indigenous Ethiopian cattle breeds using RAPD markers

Genetic diversity is the basis for present day diversified living systems and future genetic improvement needs. This diversity should be properly utilized, improved and conserved. Conservation and improvement strategies ought to be based on proper genetic characterization in association with phenotypic characterization. The objective of this work was to assess between and within breed genetic variability of five...

Author(s): Fedlu Hassen, Endashaw Bekele, Workneh Ayalew and Tadelle Dessie

October 2007

Inhibition of phage infection in capsule-producing Streptococcus thermophilus using concanavalin A, lysozyme and saccharides

Lactic cultures that produce capsular polysaccharides are widely used in the dairy industry. However, little information is available on their phage-cell interactions.  Concanavalin A (Con A), lysozyme, and saccharides were investigated for their ability to modify phage-cell interactions in such a manner as to inhibit phage infection. The ability of phage to infect cells was determined by measuring acid production...

Author(s): Rowaida Khalil, Joseph F. Frank, Ashraf N. Hassan, and Sanaa H. Omar

October 2007

Antioxidant capacity of different types of tea products

In the present study, twelve different types of commercial tea samples were assayed to determine their phenolic composition and antioxidant activity. Reverse phase high performance liquid chromatography using a binary gradient system was used for the identification and quantification of individual catechins. Subsequently, total phenolic content was determined spectrophotometrically according to the Folin-ciocalteus...

Author(s): Karori, S. M., Wachira, F. N. , Wanyoko, J. K. and Ngure, R. M.