Rivers State University of Science and Technology

About: Rivers State University of Science and Technology is a education organization based out in Port Harcourt, Rivers, Nigeria. It is known for research contribution in the topics: Population & Threatened species. The organization has 1826 authors who have published 1833 publications receiving 15183 citations.

Nutrient Composition and Sensory Properties of Wheat Bread Substituted with Defatted and Undefatted Cashew Kernel (Anacardium occidentale Linn.) Flours

Abstract: This study was undertaken to investigate the nutrient composition and sensory properties of wheat flour bread substituted with defatted and undefatted cashew kernel flours. Cashew kernel was processed into flour and thereafter divided into two portions. One portion was left undefatted while the other portion was defatted using a hydraulic press. Bread was prepared from the blends of wheat and defatted/undefatted cashew kernel flours using 90:10, 80:20, 70:30, of wheat flour to defatted cashew kernel flour (DCF) and wheat flour to undefatted cashew kernel flour (UCF), and 100% wheat flour as control. Bread samples were subjected to sensory evaluation within 30 minutes of production. Proximate analysis and amino acid profile of the bread samples were carried out using standard methods. Result of the proximate analysis of the bread samples revealed a significant (p<0.05) increase in ash (1.05-2.19%), protein (8.46-34.22%) and crude fibre (1.85-6.20%) with a corresponding decrease in moisture (11.05-21.28%) and carbohydrate contents (57.21-36.37%) as substitution of wheat flour with DCF and UCF increased. Amino acid Original Research Article Emelike et al.; EJNFS, 12(12): 28-39, 2020; Article no.EJNFS.64066 29 analysis revealed that wheat/DCF composite breads were significantly (p<0.05) higher in lysine (7.00 g/100 g), phenyl alanine (3.99 g/100 g), tryptophan (0.89 g/100 g), valine (4.33 g/100 g) and methionine (1.47g/100 g) than the wheat/UCF composite bread. Similarly, wheat/DCF composite breads were significantly (p<0.05) higher in proline (3.45 g/100 g), arginine (5.68 g/100 g), tyrosine (3.78 g/100 g), alanine (4.25 g/100 g), glutamic acid (11.81 g/100 g), glycine (3.06 g/100 g), serine (4.00 g/100 g) and aspartic acid (7.32 g/100 g) indicating higher protein quality in the wheat/DCF composite breads than in wheat/UCF composite breads. Bread samples substituted with 10% UCF and 20% DCF compared favourably with the control wheat flour bread for taste, crust, colour and general acceptability. Therefore, it is recommended to use a level of substitution of 10% UCF and 20% DCF for the production of bread of adequate nutritional and sensorial qualities.

Liquefaction potentials of a sandy substratum in the south-eastern lower Niger Delta of Nigeria

Abstract: Most of the materials that constitute the uppermost formation (Benin Formation) of the lower Niger Delta in South-Eastern Nigeria are sands, shales and clays that occur at various depths within the formation. These subsurface materials have served as bearing media for both shallow and deep foundation structures.

Utilisation of FACTS Devices in the Nigerian Transmission Grid

Abstract: In aiding the disposition of electrical power networks towards controlling and increasing its ability to transfer AC power, Flexible Alternating Current Transmission Systems, FACTS is generally employed. This paper shows results of the study that assess the application of FACTS technologies into the expansion plans of the Transmission Company of Nigeria; as it transfers power through transmission lines to load centres. The load-flow, voltage and economic analysis were carried out and the results obtained to show how utilizing FACTS will give technical and economic advantages.

Design of a Simple Gas and Solid Filtration Apparatus

Abstract: The results of experiments using needle-bonded polypropylene fibers as filter fabrics show that the air permeability of the filter fabrics depends on the type and size of needles used for fabric construction. For dust filtration, the internal structure of the filter fabrics has an effect on the resultant collection capacity based on the air permeability. A new gas and dust filtration apparatus was designed for the investigation, and the results obtained are reproducible. A regression analysis produced high correlations between pressure drop and air flow rates, which are statistically valid at a significance level of 0.1%.