October 2010
A study on the effect of microwave heating on the properties of edible oils using FTIR spectroscopy
Fourier transform infrared spectroscopy (FTIR) was used for the structural characterization of vegetable oils (olive, cotton, corn and sunflower oils) following the induced changes in their structure brought about by microwave heating. The vegetable oils samples were microwave heated at 2 powers (450 and 630 W) for different times ranging from 2 - 28 min. The investigation of the FTIR spectra of the treated...
October 2010
Germinability and seedling vigour of some arable crops treated with Albit® bioregulator and superhormai® fungicide
This study assessed the germination and vigour of seeds of four arable crops(Arachis hypogea, Digitaria exilis, Vigna unguiculata and Zea mays) treated with Albit® bioregulator and also with superhormai® fungicide. Completely randomized laboratory trials showed that presoaking of seeds of A. hypogea, D. exilis V. unguiculata and Z. mays with 0.2...
October 2010
Sero-epidemiology of brucellosis in small ruminants in Plateau State, Nigeria
A sero-epidemiological study of brucellosis in small ruminants was carried out in Plateau state to determine the status of the disease. A total of 1347 serum samples from 851 goats and 496 sheep systematically collected from nine randomly selected Local Government Areas (LGA) of the state were tested for brucella antibodies using Rose Bengal plate test (RBPT) and serum agglutination test (SAT). The result...
October 2010
Effect of time and relative humidity on the microbial load and physical quality of cashew nuts (Anacardium occidentale L) under storage
Post harvest deterioration by microbes due to improper storage condition is considered to be the major cause of spoilage of most seeds like cashew nuts. Roasted cashew nuts were subjected to 4 different storage conditions with different relative humidity of 30, 70, 80 and 90%, respectively, for a period of 12 days. Each storage condition was examined for microbial growth, crispiness, pH changes, moisture...
October 2010
Conjunctivitis among children in a teaching hospital in South-West of Nigeria: Role of Staphylococcus aureus as an aetiologic agent and its antibiogram
This study was done at the University College Hospital Ibadan, Nigeria between January and June, 2006. It was designed to determine the incidence and prevalence of Staphylococcus aureus in conjunctivitis in the Ophthalmology clinic of the hospital as well as the antibiotic sensitivity profile to chloramphenicol. A total of 210 swabs were gram-stained and cultured bacteriologically. 158 were positive...
October 2010
In vitro assessment of aqueous and ethanolic extracts of some Nigerian chewing sticks on bacteria associated with dental infections
The antimicrobial efficacy of aqueous and ethanolic extracts of ten Nigerian chewing sticks was investigated using standard methods. These extracts were tested against six bacteria associated with dental infections; they are Actinomyces vercosus, Neisseria sicca, Streptococcus mutans, Staphylococcus aureus, Lactobacillus salivarius and Moraxella catarrhalis. Generally, ethanolic extract...
October 2010
Antimicrobial activity of Rhaponticum acaule and Scorzonera undulata growing wild in Tunisia
This study examined the in vitro antibacterial and antifungal activities of the extracts (butanolic, ethyl acetate, petroleum ether and the product H2) of 2 plants belonging to the Asteraceae family: Rhaponticum acaule L. and Scorzonera undulata L.Butanolic and ethyl acetate extracts of the Rhaponticum acaule plant showed a moderate antibacterial activity against 3 of...
October 2010
Investigation of endophytic and symbiotic features of Ralstonia sp. TSC1 isolated from cowpea nodules
Ralstonia sp. TSC1 previously isolated from cowpea nodules was tagged with gfp gene by transposon insertion. The resultant gfp-tagged Ralstonia sp. TSC1 showed no difference in physiological properties such as growth rate, exopolysaccharide formation and colony morphology. When it was co-inoculated with compatible bradyrhizobial strains, the observation of fluorescence microscopy showed...
October 2010
Naringinase production from filamentous fungi using grapefruit rind in solid state fermentation
This study involved the production of naringinase by twelve filamentous fungi in solid-state fermentation (SSF) using orange and grapefruit rind as substrates; these agro industrial residues contain naringin, an important inductor for this enzyme. The percentage of naringin hydrolyzed from grapefruit rind by Aspergillus foetidus,Aspergillus niger and Aspergillus niger HPD-2...
October 2010
Effect of cultural components on antimicrobial activity of bacteriocin produced by bacteria isolated from gut of poultry
The effects of various carbon and nitrogen sources and enzymes on the antibacterial activity of Enetrococcus faecium bacteriocin L17 (3.5 kDa) isolated from poultry gut and confirmed by polymerase chain reaction (PCR) and 16S rDNA sequencing was carried out. The bacteriocin exhibited antibacterial activity against both gram-negative and gram-positive bacteria, as well as some funding such as...
October 2010
Investigating the effects of various additives on surface activity and emulsification index of biosurfactant resulting from broth media of Bacillus subtilis PTCC 1023
Surfactants are amphipathic molecules which reduce surface tension and are widely used in pharmaceutical, cosmetic and food industries. In the present study, the production of biosurfactant by Bacillus subtilis PTCC 1023 was studied. B. subtiliswas grown in the nutrient broth medium and biosurfactant production was evaluated by measuring the surface tension and emulsification index (E24) each...
October 2010
Influence of cultural conditions on hydrogen peroxide production by lactic acid bacteria isolated from some Nigerian traditional fermented foods
In this study, influence of cultural conditions on hydrogen peroxide production by lactic acid bacteria was investigated. Leuconostoc mesenteroides produced the highest quantity (0.024 L) of hydrogen peroxide while Lactobacillus plantarumproduced the lowest amount (0.016 g/L) in normal MRS. The effect of temperature on hydrogen peroxide production was determined and the result showed...
October 2010
Acetoin production associated with the increase of cell biomass in Bacillus pumilus ATCC 14884
Some of Bacillus strains, especially Bacillus pumilus, were the best acetoin producers. This study attempts to disclose the mechanisms of vigorous acetoin excretion using B. pumilus ATCC 14884 as a model strain. The production of acetoin by this strain has been studied under a variety of conditions. Glucose was found to be a much better substrate than citrate, pyruvate,...
October 2010
In vitro characterization of bacteriocin producing Bacillus subtilis from milk samples
Bacillus subtilis was isolated from milk samples. Antibiotic resistance and the antimicrobial activity of B. subtilis were studied. All the four isolates of B. subtilis were sensitive to antibiotics such as streptomycin (25 μg/ml), ampicillin (10 μg/ml), penicillin (10 μg/ml), erythromycin (15 μg/ml), amoxycillin (10 μg/ml).But they were resistant to...
October 2010
Sterilization of flexible pouch by high frequency electromagnetic induction, using cooked chick and chick meal
The effect of high frequency electromagnetic induction (EMI) in combination with various pre-heating conditions on sterilization of multilayer flexible pouches was studied. All samples of cooked chick and cooked chick meal pouches were sterilized using EMI which discharges square-wave pulses with variable voltage of 1-20 kV/cm and with different frequencies of 2-4, 4-6, 6-8 and 8-10 GHz in step one. The effect of high...
October 2010
Seroepidemiological survey of canine Visceral leishemanisis in Sarab District, East Azerbaijan Province, Northwest of Iran in 2009
Visceral leishmaniasis (VL) is one of the most important endemic parasitic diseases in different parts of Iran. It is also a health problem in some tropical and subtropical countries. The purpose of the present study was to determine the seroprevalence ofcanine VL (CVL) in owned dogs of Sarab and to identify the isolated Leishmaniaspecies. Sera samples were taken from 384 dogs...
October 2010
Detection of deep fungal infection in SLE patients with multiplex fluorescent real-time PCR
To establish a rapid, sensitive and specific detection method for deep fungal infection, we detected the deep infection of Candida albicans and Aspergillus flavusin patients with systemic lupus erythematosus by using multiplex fluorescent real-time PCR (MFRT-PCR). Firstly, the positive rate, sensitivity and specificity of multiplex fluorescent quantitative PCR for detecting the fungal...
October 2010
Antioxidant and antimicrobial activities of Turkish endemic Achillea species
This study was undertaken to examine in vitro antioxidant, radical scavenging andantimicrobial activities of extracts of Achillea schischkinii Sosn. and Achillea teretifolia Waldst. and Kitt (Asteraceae). The plant materials were extracted in methanol, water and chloroform using rotary evaporator apparatus. The extracts were screened for antioxidant activity using the...
October 2010
A microbiologic evaluation of patients with chronic prostatitis and relation with clinical symptoms
In this study urine and prostatic secretion samples of patients with chronic prostatitis were investigated for various prostatitis pathogens and the correlation between clinical symptoms. A total of 60 patients with chronic prostatitis were examined, prostatic secretion and urine specimens were evaluated under direct microscopy after staining with Giemsa and Gram. The selective media were used to investigate...
October 2010
Inhibitory activity of Paenibacillus macerans and Paenibacillus polymyxa against Ralstonia solanacearum
The inhibitory activities of seven Paenibacillus polymyxa strains and ninePaenibacillus macerans strains against Ralstonia solanacearum strains were examined. Result from this study indicated that the growth of all R. solanacearumstrains except strain E406 were inhibited by P. macerans MB02-992 and P. polymyxa MB02-1007, while the other...
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