31 research outputs found
Wine Making: Influence of pH on Physicochemical Parameters of Wine Must Produce from Hot Water Extract of Broom-cluster Fig (Ficus capensis) Leaf using Saccharomyces cerevisiae
The chemical and biological stability of wine are very dependent on pH value, hence winemakers believe that pH plays a critical role in fermentation and final wine quality. This paper optimized and assessed the influence of pH on different physicochemical parameters of wine must prepared from hot water extract of the leaf of Broom-cluster Fig (Ficus capensis) leaf with Saccharomyces cerevisiae, ameliorating to 22 oBrix using table sugar and adding potassium metabisulfite. Then the pH of the must was adjusted as required and subjected to pasteurization. The must was inoculated with yeast inoculum at 0.8g/ml. Soluble solid, alcohol, titratable acidity and pH profile of the wine was monitored daily. After optimization and fermentation physicochemical parameters of the wine were analyzed. It was shown that pH of the must increase and decreased as the fermentation days progressed from day 1-12 for pH 3 -3.5 and 4-4.5 respectively. Total soluble solid decreased in all the must samples. The alcohol content increased gradually during fermentation. pH 3 and 4 had the highest titratable acidity when compared to pH 3.5 and 4.5. The pH of 4.5 wine had the lowest TSS and highest alcohol content. This study shows that wine can be produced from hot water extract of Ficus capensis leaf and the must fermented at lower pH gave highest percentage of alcohol. There is need to optimize and assess the pH of vegetable must before fermentation
Rheology of Gum Arabic Polymer and Gum Arabic Coated Nanoparticle for Enhanced Recovery of Nigerian Medium Crude Oil under Varying Temperatures
The dataset in this article are related to the rheology of dispersions containing Gum
Arabic coated Alumina Nanoparticles (GCNPs) and Gum Arabic (GA) polymer for Enhanced Oil
Recovery (EOR) of Nigerian medium crude oil under varying temperatures. The data included the
viscosity of the dispersion containing GCNPs compared to GA at different shear rates. In addition,
data on the rheological properties (plastic viscosity, yield point, and apparent viscosity) of the
dispersions under varying temperatures was also presented
Dataset on experimental investigation of gum arabic coated alumina nanoparticles for enhanced recovery of nigerian medium crude oil
The datasetinthisarticlearerelatedtoanexperimentalEnhanced
Oil Recovery(EOR)schemeinvolvingtheuseofdispersionscon-
taining GumArabiccoatedAluminaNanoparticles(GCNPs)for
Nigerian mediumcrudeoil.Theresultcontainedinthedataset
showeda7.18%(5wt%GCNPs),7.81%(5wt%GCNPs),and5.61%
(3 wt%GCNPs)improvementintherecoveryoilbeyondthewater
flooding stageforcoresamplesA,B,andCrespectively.Also,the
improvementinrecoveryofthemediumcrudeoilbytheGCNPs
dispersions whencomparedtoGumArabicpolymer flooding was
evident inthedataset
The human rights implications of virginity testing in South Africa
This article examines the historical context of virginity testing in Southern Africa with a focus on South Africa. It then examines the arguments often adduced in justifying the introduction of this practice. The two major arguments to support the reintroduction of virginity testing, namely, that it helps in reducing the spread of HIV and in preserving societal moral values are critically examined. Thereafter, the article discusses how the ever contentious debate between universalists and relativists applies to virginity testing. The last part of the article then considers the human rights implications of virginity testing
Health Expenditure, Child Mortality and Economic Growth in Nigeria
Health expenditure, child mortality and economic growth in Nigeria was examined using time series data covering the 1980 – 2020 sample periods. The Ordinary Least Square (OLS) technique was employed in analyzing the data. Empirical results showed a negative and insignificant impact of government health expenditure on under-five child mortality. It was also found that government capital expenditure had a negative and insignificant impact on under-five mortality, while government recurrent expenditure had a negative and significant impact on under-five mortality. Gross fixed capital formation had a positive and significant impact on under-five child mortality. It was also found that child mortality, government capital expenditure and domestic investment had a positive and significant impact on economic growth, while inflation had a negative and significant impact on economic growth. We recommend an increase in the yearly budgetary allocation to the health sector. However, the key to good outcomes is dependent not on the only mere increase in budgetary allocation but rather on implementing a public finance system that is good enough to extend and possibly link particular expenditure and revenue decisions and ensure appropriate usage of the allocated fund as transparently as possible
Comparative analysis of the demand for beef and mutton among households in enugu metropolis, nigeria
Beef and mutton are meat types derived from cattle and sheep respectively. They are popular meat sources for households in Enugu metropolis Nigeria, although in varying degrees. This study wascarried out to examine the comparative nature of the demand for these sources of protein in the study area. The data were generated from secondary and primary sources. Secondary data was collected from existing relevant literatures. The primary data was collected from a field survey using a set of questionnaires administered randomly to selected 105 households in the study area. The data were analyzed using descriptive statistics and multiple regression analysis. The results ofthe study showed that beef had a higher demand in terms of quantity consumed and frequency of purchase than mutton. In the low expenditure groups, mutton was not consumed at all. Household’s total expenditure and non–resident household members were significant in explaining household’s consumption of beef, while it was only the total expenditure that was significant in explaining the household expenditure on mutton. The expenditure elasticity for beef was 0.885, while that of mutton was 0.00073