Ladoke Akintola University of Technology

About: Ladoke Akintola University of Technology is a education organization based out in Ogbomoso, Nigeria. It is known for research contribution in the topics: Population & Adsorption. The organization has 2786 authors who have published 3066 publications receiving 36850 citations. The organization is also known as: Oyo State University of Technology & LAUTECH.

Optimization of Edible Oil Extraction from Ofada Rice Bran Using Response Surface Methodology

Abstract: Effects of roasting temperature and duration on yield and quality (free fatty acid, peroxide value, color) of oil extracted from ofada rice bran was studied using response surface methodology. Roasting temperature and duration were 160, 170, 180, 190, and 200 °C and 5, 10, 15, 25, and 35 min respectively. Data were analyzed by ANOVA and regression analysis. The oil yield ranged between 11.31% and 14.4%, free fatty acid (7.10–12.75%), peroxide values (8.25–13.25 mEq/kg) and color (1.51–1.58 abs). The treatments have significant effects on oil yield, free fatty acid, peroxide values, and color at p < 0.05. Coefficient of determination R 2 of oil yield, free fatty acid, color, and peroxide value models were 0.79, 0.91, 0.99, and 0.99 respectively. Optimum temperature and duration of roasting were 190 °C and 10.75 min, respectively. This combination gave 14.45% oil yield, 5.80% free fatty acid, 8.25 mEq/kg peroxide values and 1.51 abs oil color. Desirability of optimization was 0.99.

Factors associated with the incidence of acute bilirubin encephalopathy in Nigerian population

Abstract: Acute bilirubin encephalopathy (ABE) is still a major and common health problem in developing countries in spite of the availability and efficacy of phototherapy and exchange blood transfusion. In developing countries, the prevalence of kernicterus has not shown any reduction because many babies with jaundice present very late in well established kernicterus. The study was done to determine the factors responsible for the late presentation of neonatal jaundice and development of ABE among the patients presenting with this condition in our health facility. All newborns presenting with ABE at the special care baby unit of the Ladoke Akintola University of Technology Teaching Hospital, Osogbo, Nigeria were prospectively studied. The diagnosis of ABE was made clinically if there were neurologic abnormalities associated with hyperbilirubinemia. Twenty-eight (3.2%) of 882 babies admitted over 3 yr had ABE. There were 21 males, 7 females, and the male: female ratio 3:1. Twenty-two (78.6%) of the mothers saw at least one health worker more than 24 hr before presentation. Three (10.4%) other mothers who noticed the jaundice did not initiate any treatment while the remaining three (10.4%) mothers did not notice the jaundice in their babies until they presented at the health facility with the complaint of failure to suck. Prescribed medications before presentation were oral antibiotics, hematinics and gentamicin injections, a solution of Naphthalene balls in water and an extract of local herbs made from Pawpaw leaves. Causes of jaundice were septicemia, G6PD deficiency, ABO incompatibility, low birth weight and rhesus isoimmunization in decreasing order of frequency. Maternal factors include low socioeconomic status, teenage and low parity statuses of the mothers. Inappropriate treatment of neonatal jaundice by health workers was also one of the underlying reasons. Therefore, there is need to raise the level of awareness in the community of the occurrence and dangers of neonatal jaundice and its appropriate treatment. Health workers themselves need education and training in the early recognition and treatment of neonatal jaundice.

Effect of soybean substitution on some physical, compositional and sensory properties of kokoro (a local maize snack)

Abstract: Kokoro was prepared from maize–soybean flour mixtures in ratios of 100:0, 90:10, 80:20, 70:30, 60:40 and 50:50. The physical, compositional, and sensory characteristics of kokoro were evaluated. Protein and fat contents increased, while carbohydrate content decreased as the soy flour proportion of the flour mixture used in the kokoro was increased. The bulk density and water-holding capacity increased with increasing proportion of soybean flour, while the swelling capacity was found to decrease. High soy-substitution significantly reduced the sensory acceptance of kokoro. Sensory evaluation indicated that maize:soybean flour mixture ratios of 100:0 and 90:0 were the most acceptable to the panellists.

Two-three parameters isotherm modeling, kinetics with statistical validity, desorption and thermodynamic studies of adsorption of Cu(II) ions onto zerovalent iron nanoparticles.

Abstract: Adsorption of problematic copper ions as one of the endocrine disruptive substances from aqueous solution onto nanoscale zerovalent iron (nZVI) was studied. The high pore size 186.9268 A, pore diameter 240.753 A, and BET surface area 20.8643 m2 g−1 and pH(pzc) enlisted nZVI as an efficient nano-adsorbent for treatment of heavy metals from synthetic wastewater. SEM and EDX revealed the morphology and elemental distribution before and after adsorption. 98.31% removal efficiency was achieved at optimum adsorption operational parameters. Of all the thirteen isotherm models, equilibrium data were well fitted to Langmuir. Kinetics and mechanism data across the concentrations from 10 to 200 mg L−1 were analyzed by ten models. PSO best described kinetics data as confirmed by various statistical error validity models. The intraparticle diffusion model described that the intraparticle diffusion was not the only rate-limiting step. The adsorption mechanism was diffusion governed established by Bangham and Boyd models. Feasible, spontaneous, endothermic, and degree of randomness were reveal by the thermodynamic studies. Better desorption index and efficiency were obtained using HCl suggesting multiple mechanism processes. The performance of ZVI suggested it has a great potential for effective removal of endocrine disruptive cationic contaminant from wastewater.