February 2010
Screening of potential infants’ lactobacilli isolates for amino acids production
A total of 9 lactic acid bacteria (LAB) isolated from Egyptian infants, belonging to lactobacilli strains, were screened and selected according to their amino acids production. The isolate strains produced different essential amino acids in fermentation of M17 medium. Lactobacillus strain L1 produced the highest yield of histidine 92.5 mg/l, L2 strain produced the highest amount of asparagine 59.61...
February 2010
The impact of bacteriophages in bacteria removal associated with soba stabilisation station efficiency
The existence of bacteriophages in wastewater of Soba Stabilisation Station was determined by isolating and identifying methods for their activities againstEscherichia coli and Staphylococcus aureus isolated from the anaerobic, facultative and maturation ponds. The general viable count of the bacteria showed an average of 2.0 x 106 cfu/ml. In broth media the affection of the...
February 2010
Isolation of marine Streptomyces and the evaluation of its bioactive potential
Nearly ten isolates of Streptomyces were found to be associated with two species of sponges namely Mycale mytilorum (Annandale) and Tendania anhelans(Lieberkuhn).Among the ten isolates, four strains of white series were selected and characterized by conventional methods and assessed for their antagonistic activity against fish pathogens like Aeromonas...
February 2010
Virulence characteristics of food processing relevance in isolates of Listeria monocytogenes and Escherichia coli 0157: H7 strains isolated from ‘wara’ a West African soft cheese
Three strains of Escherichia coli 0157:H7 and eleven strains of Listeria monocytogenes isolated from West African wara cheese were analysed for cellulose production, fimbriae formation, zetapotential and biofilm formation which are of relevance in food processing. E. coli c produced no fimbria, very low cellulose and significantly lower zetapotential (-3.1) among the three...
February 2010
Estimation of bacterial diversity in soil and vermi compost using sole source carbon utilization (SSCU) profile
In this research study, three samples were collected from the T.S. Murthi Udhyan, Obedullahganj out of which two samples were from agriculture field soil and the third sample was from compost. Pure cultures of bacteria were isolated by using serial dilution and spread plate methods. The isolated bacterial cultures were separated according to the morphotypes and then bio-chemically tested. They were further...
February 2010
Transforming p-coumaric acid into p-hydroxybenzoic acid by the mycelial culture of a white rot fungus Schizophyllum commune
The aim of this paper was to study the catabolic product(s) of p-coumaric acid by a white rot fungus, Schizophyllum commune. TLC and HPLC chromatogram showed that p-hydroxybenzoic acid was formed as a major degradation product ofp-coumaric acid. The purity of p-hydroxybenzoic acid was further confirmed by mass spectrometry. A maximum amount 2.5 mg/l of p-hydroxybenzoic acid was...
February 2010
Prevalence of hepatitis B and C virus infection among people of a local community in Keffi, Nigeria
Hepatitis B (HBV) and hepatitis C (HCV) virus infections have remained recurring decimals in blood transfusion, vertical transmission, liver cirrhosis and hepatocellular carcinoma (HCC). Most of the published studies of their prevalence in Northern Nigeria are among HIV/AIDS patients. The need for such vital information among an apparently healthy population was the basis for this study. Rapid diagnostic...
February 2010
Preservation of seeds against fungi using wood-ash of some tropical forest trees in Nigeria
Fresh visually healthy seeds of Zea mays (maize), Cucumeropsis mannii (melon) and Phaseolus vulgaris (bean) were stored under three conditions, wood ash of some tropical forest trees in Nigeria namely; Khaya grandifoliola, Nauclea diderrichii, Piptadeniastrum africanum, Mangifera indica, Mansonia altissima, Triplochiton scleroxylon, Ceiba pentandra, Terminalias superba,...
February 2010
Bacterial etiology of acute middle ear infections
To determine the bacterial etiology of acute middle ear infections in preschool age children. This prospective descriptive clinical study was implemented in Marmaris town between November, 2008 and May, 2009 with 80 cases. Their age ranged from 2 - 6. One fourth of the cases were preschoolers. The diagnosis of acute middle ear infection was confirmed by an otolaryngologist following a pediatrician and...
February 2010
Antiviral effect of Hibiscus sabdariffa and Celosia argentea on measles virus
Studies on extracts and biologically active compounds isolated from medicinal plants have doubled in the last two decades. The leaves of Hibiscus sabdariffa (red and green leaved) and Celosia argentea were studied for their antiviral activities against Measles Virus (MV) as well as the effects of the extracts on Hep-2 cells. Ethanol extract of the leaves of each of these plants showed no...
February 2010
Screening and optimization of nutrients for L-asparaginase production by Bacillus cereus MNTG-7 in SmF by plackett-burmann design
The medium components influencing the enzyme production were screened using Plackett-Burman design. A total of 67 nutrients comprising of fifteen each of carbon, nitrogen, mineral/salt and eleven each of inorganic nitrogen sources and amino acid sources were screened for the production of L-asparaginase by SmF. This design involves screening of up to ‘n-1’ variables in just ‘n’ number...
February 2010
In vitro antimicrobial activity of Muntingia calabura extracts and fractions
The aim of the present study is to determine the in vitro antimicrobial activity of various extracts, partitions and fractions of Muntingia calabura (Elaeocarpaceae) leaves against a selected panel of microorganisms. The leaves of M. calabura were soaked separately in the aqueous, chloroform and methanol solvent systems in the ratio of 1:20 (w/v) for 72 h and these procedures...
February 2010
Chemical composition of lavender essential oil and its antioxidant activity and inhibition against rhinitis-related bacteria
In this study we assessed the chemical composition, antioxidant and antibacterial activities of Lavender essential oil. The antioxidant and antibacterial capacity of test sample was assayed by a linoleic acid system and conventional method of bacterial growth inhibition. The results demonstrated that the essential oil consisted of...
February 2010
Evaluation of antibacterial activity of some medicinal plants on common enteric food-borne pathogens
Enterobacteria are often responsible for various gastrointestinal foods borne infection in humans especially in the developing countries. Cassia occidentalis, Croton zambensicus and Newbouldia leavis known as ‘Ewe ori esi’, Ajekobale and Akoko respectively in Yoruba are three plants whose leaves are used in combination by boiling to treat gastrointestinal and diarrhea...
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