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Osogbo, Nigeria

Oke M.O.,LAUTECH | Awonorin S.O.,UNAAB | Sanni L.O.,UNAAB | Asiedu R.,International Institute Of Tropical Agriculture | Aiyedun P.O.,UNAAB
Journal of Food Processing and Preservation | Year: 2013

Water yam (Dioscorea alata) flour was processed using standard wet milling procedure prior to the extrusion process, which led to the determination of extrudate properties of the flours. A single-screw extruder (DCE 330, NJ) was used in evaluating the extrudate properties, which included torque, mass flow rate, residence time, specific mechanical energy and expansion ratio of the flours from the water yam samples. The effect of extrusion and process variables: feed moisture content, screw speed and barrel temperature on the extruder torque, residence time, mass flow rate, specific mechanical energy and expansion ratio for the variety were determined and predictive models were also developed using response surface methodology. It was observed that changing the feed moisture content, barrel temperature and screw speed significantly (P<0.05) affected expansion ratio, torque, mass flow rate, residence time and specific mechanical energy of all the extrudates. Increasing the feed moisture content (18-28% db) and screw speed (80-180rpm) resulted in a substantial decrease in expansion ratio (46.6%), residence time (27.5%) and specific mechanical energy (83.6%); whereas, increasing the screw speed significantly increased the mass flow rate (64.5%) of extrudates. Regression analysis indicated that screw speed and feed moisture content were the major process variables showing significant (P<0.05) linear, quadratic and interaction influences on mass flow rate, expansion ratio and specific mechanical energy. © 2012 Wiley Periodicals, Inc. Source

Abioye A.O.,LAUTECH | Oyeyinka S.A.,University Of Ilorin | Oyeyinka A.T.,University of Leeds | Kareem S.O.,LAUTECH
Pakistan Journal of Scientific and Industrial Research Series B: Biological Sciences | Year: 2012

In this study, possibility of making jam from two underutilized fruits (baobab and hogplum fruits) known to have high pectin content was investigated. This will increase their consumption and further promote the popularity of jam among rural dwellers where these crops are found. Baobab and Hogplum fruits were cleaned, sorted, weighed and their pulps were extracted in each case using a mesh. Formulation was made in different proportions (100:0, 0:100, 70:30, 30:70, and 50:50) using both fruits. Dissolved sugar and acidifying agent (lime) were added to the mixture and heated at 80°C until it sets. Samples were stored, under refrigeration till analysis. The jam samples were analyzed for pH, total soluble solids (°Brix), titratable acidity (TTA), ascorbic acid, β-carotene and moisture content (MC). Sensory attributes of the samples were compared with a commercial jam (apricot jam (APJ). Source

Ameen S.A.,LAUTECH | Okewole E.A.,University of Ibadan | Adedeji O.S.,LAUTECH | Ogundipe K.A.,University of Ibadan | Okanlawon A.A.,University of Ibadan
African Journal of Biotechnology | Year: 2012

Sixteen (16) rabbits aged between 6 to 12 months were infected with fresh stock of Trypanosoma congolense (Gboko strain) intravenously at the rate of 1.0 × 10 6/ml. Animals were classified into two groups; groups A were infected, while group B served as uninfected controls. Samples from the infected and the uninfected controls showed a significant increase in the levels of sodium (Na +), calcium (Ca 2+), phosphate (PO 4 2-) and blood urea nitrogen (BUN) (P < 0.05) and a significant decline in the levels of potassium (K +) and bicarbonate (HCO 3 2-) (P < 0.05). Therefore, the alterations in the compositions of these micro-minerals in the serum of rabbits may suggest that, they could have a role in the pathogenesis of trypanosomosis due to T. congolense infection. © 2012 Academic Journals. Source

Agodirin S.O.,LAUTECH | Oguntola A.S.,LAUTECH | Ojemakinde K.O.,LAUTECH | Adeoti M.L.,LAUTECH | Agbakwuru E.A.,Obafemi Awolowo University
Annals of African Medicine | Year: 2012

Background: Wire localization for planned surgical treatment in the management of breast cancer is underutilized in our environment. The objective of this study is to assess the role of ultrasound-guided wire localization of breast masses detected on screening mammography and its impact on biopsy and breast conservative surgery in our environment Materials and Methods: A prospective study of 189 women who presented for screening mammography following a health campaign on breast cancer within a six-month period. Wire localization for mammographic detected lesions was done under ultrasound guidance. The lesions excised were sent for specimen radiography and histology. Results: Ten women had wire localization of breast lesions and subsequent excision. Three lesions were on the right and 7 on the left; out of which 3 were malignant. The mean volume of excised tissue was 74.27±30.16 cm 3. Conclusion: Early detection of breast cancer is possible and practicable in our environment. Wire localization of detectable lesions on mammography will assist in better surgical management and improve prognosis. Source

Proceedings - International Conference on Computer Vision and Image Analysis Applications, ICCVIA 2015 | Year: 2015

Medical image classification scheme has been on the increase in order to help physicians, and medical practitioners in their evaluation and analysis of diseases. Several classification schemes such as Artificial Neural Network (ANN), Bayes Classification, Support Vector Machine (SVM), K-Means Nearest Neighbor have been used. In this paper, we evaluate and compared the performance of ANN and SVM by analyzing Cirrhosis and Hemachromatosis-two major diseases of the liver. Corresponding results showed support vector machine is of better classification strength than neural network by achieving a percentage accuracy of 87.5%, while ANN was 71.25%. © 2015 IEEE. Source

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