Search results

Child undernutrition is a persistent problem in Africa, especially in areas where the poor largely depend on starchy staples with limited access to diverse diets. The purpose of this study was to determine the protein quality, growth and rehabilitating potential of composite foods made from quality protein maize.

Four composite diets were prepared from quality protein maize, namely quality protein maize-soybeans; quality protein maize-soybeans-cowpeas; quality protein maize-soybeans-common beans and quality protein maize alone. A fifth diet was prepared from common maize alone. The control diet (Chesta®) was made from maize, soybeans, fish, bone and blood meal. The formulations were made to meet the greatest amino acid score and the desired amount of energy and fat according to the FAO/WHO (1985) recommendation for pre-school children. Albino rats were used in evaluating the protein quality of the formulations.

The food intake was significantly different (p < 0.05) among diets; with a trend of intake decreasing from quality protein maize-based to conventional maize alone diets (apart from the control diet). Protein efficiency ratio and net protein ratio varied significantly (p < 0.05) across the experimental diets. Protein digestibility-corrected amino acid score (PDCAAS) was 80 per cent (quality protein maize-soybeans-cowpeas), 87 per cent (quality protein maize-soybeans), 103 per cent (common maize alone), 98 per cent (quality protein maize), 80 per cent (quality protein maize-soybeans-common beans) and 53 per cent (control).

Two diets, namely quality protein maize-soybeans-common beans and quality protein maize-soybeans-cowpeas, showed the greatest potential to support growth and rehabilitation of undernourished rats. Human trial is proposed to validate the findings.

Despite adoption of quality protein maize in several parts of the country, there are no studies that have been done to determine the potential of quality protein maize to support optimal growth and rehabilitation of undernourished children. The objective of this study was, therefore, to evaluate the protein quality, growth and rehabilitating potential of composite foods made from quality protein maize.

This study aims at determining the risk of physical inactivity and sedentary behaviors on overweight and obesity among primary school children aged 10–13 years in Tanzania.

A case-control study was conducted from January to March 2020 involving 69 overweight/obese children as cases and 138 normal weight children as controls. Cases were identified as having body mass index-for-age ≥ +1 standard deviation (SD) and controls as those having BMI-for-age range between −2 SD to <+1 SD. A validated questionnaire was used for data collection on daily physical activities and sedentary behavior types, frequency duration and activity score. An independent sample t-test was used to compare means of activity score between cases and controls. Binary logistic regression was used to predict risk factors for overweight/obesity.

Risk factors for overweight/obesity were listening to music and/or radio for >2 h/week (OR 2.7, 95% CI 1.2–6.1) and walking for exercise <2 h/week (OR 2.1, 95% confidence interval [CI] 1.1–4.1). On the other hand, rope skipping for >2 h/week (OR 0.14, 95% CI 0.03–0.7) was a protective factor against overweight/obesity. Controls had a significantly higher mean score of being active during lunch breaks compared to cases (p = 0.012). Cases had higher weight, height and percentage body fat than controls (p < 0.001). The home environment provided more avenues for physical activity than the school environment.

To the best of the authors’ knowledge, this is original research work and the first case-control study to predict physical activity and sedentary behaviors as risk factors for overweight and obesity in Tanzanian school children.

Within the chapter, we report on the scientifically controlled implementation of a new non-violent and highly inclusive secondary school in Tanzania in the region of Mwanza. To give a detailed picture of the school the founder of the school, one teacher, one social worker and 18 students aged 13–16 years of age of five different classes were interviewed. The school was set up as a best practice example to fight the high amount of corporal punishment and school violence in Tanzania. The school focusses on vulnerable students like children and youths of rural areas, from broken families and poor households as well as female students, orphaned children, youths and students with handicaps. A special focus is placed on the schooling of children with albinism who have often been exposed to discrimination, exclusion, mutilation or murder. The concept of the school is based on a study by Tangi (2019) as well as Stein et al. (2019a, 2019b) on harsh discipline and violence by teachers and bullying by students in secondary schools in the region of Mwanza in Tanzania. The newly established school is also based on the concept of child rights-focussed schools, on the concept of coaching and mentoring as well as on the ideas and ideals of inclusion. In 2021, Felista Tangi, founder of the school, was granted the Shalom Award of the Working Group Shalom of the Catholic University of Eichstätt-Ingolstadt, Germany, for her work against corporal punishment and for a more peaceful society.

White maize-based porridge is a staple food for about 80 per cent consumers in South Africa and in other sub-Saharan African countries contributing significantly to the diet of rural population in developing countries. White maize is deficient in some amino acids and over-dependency on its porridge may lead to high prevalence of malnutrition-related health conditions. Moringa oleifera (MO) and termite (Macrotermes falciger) are known to contain substantial amount of protein. The purpose of this study was to determine the effect of powders from MO leaves and termite on the nutritional and sensory properties of instant maize porridge.

Inclusion of MO and termite powder in instant maize porridge, using different treatments were considered using a completely randomised design. Factor levels were control (maize flour) cooked, blanched and uncooked MO samples. Data were analysed using SPSS version 23.

Protein content of fortified instant maize porridge (FMP) significantly increased from 10.0 to 21.2 per cent compared to unfortified porridge, and this could be attributed to the substitution effect, as fresh uncooked MO leaves are reported to be high in protein. Mineral content of FMP was higher in zinc, iron, calcium and magnesium. Calcium values of FMP were higher (276.8 mg/100 g) compared to unfortified porridge (7.1 mg/100 g). Upon the addition of MO leaves and termite powder, the zinc content increased from 3.4 mg/100to 7.6 mg/100 g. Higher iron values (27.9-36.9 mg/100 g) were observed among fortified samples. The sensory result showed that control sample had higher acceptance than the fortified samples (p = 0.02). Sensory analysis showed that among fortified porridges, blanched sample was rated high for colour and texture, cooked sample was higher in taste and uncooked sample was higher for aroma. Control sample had higher acceptance than fortified porridges for taste. The results of this study showed that the addition of MO leaves and termite powder to instant maize porridge has led to a substantial increase in the nutritional value of FMP.

This study was carried out to develop instant maize porridge fortified with MO leaves and termite powder suitable for infants, pregnant mothers and other maize consumers. The author aimed at improving the nutritional content of instant maize porridge by combining it with MO leaves and termite powders. The results showed that the addition of MO leaves and termite powders to instant maize porridge has led to a substantial increase in the nutritional value of FMP. Therefore, powder from MO leaves and termites could be used in complementary foods to increase protein and mineral contents.

This paper aims to optimize feed moisture contents, barrel temperatures, blending ratios of maize and lupine for processing of protein-rich best quality extruded product using a twin-screw extruder.

A three-factor three-level response surface methodology by Box-Behnken Design was applied to evaluate the effect of selected processing conditions of blending ratios of lupine (10-20 per cent), barrel temperatures (120°C-150°C) and feed moisture content (14-18 per cent) on functional, nutritional and sensory characteristics of produced snack food.

The results of functional properties such as radial expansion ratio, bulk density, water absorption index, water solubility index observed as 0.71-1.2, 0.33-0.92 g/cc, 4.4-6.4 per cent and 10.2-15.1 per cent, respectively. The snack food showed the moisture 5.6-7.2 per cent, protein 8.1-18.1 per cent, fiber 1.6-2.7 per cent, ash 1.6-2.2 per cent and carbohydrate 64.8-81.4 per cent. The independent variables (lupine blending ratio, barrel temperature and feed moisture content) posed significant effects on expansion ration (p = 0.0030), bulk density (p = 0.0026), water absorption index (p = 0.0075) and water-solubility index (p = 0.0116). Higher blending ratio of lupine was increase in the bulk density and water solubility index, but decrease in expansion ratio and water absorption index of snack food. Higher feed moisture content was led to a reduction in expansion ratio and water-soluble index of snack food. Whereas, higher feed moisture contents was lead to rise in bulk density and water absorption index. Fiber (p = 0.0145), ash (p = 0.0343) and carbohydrate (p = 0.0001) contents were significantly depended on blending ratio. Blending of lupine 15.06 per cent, barrel temperature of 150 °C and feed moisture content of 14.0 per cent produced the snack food with desirability value of 72.8 per cent.

Protein malnutrition is one of the major problems in child development in under developed countries including Ethiopia. Maize is a top producer in the country but least appreciated for cost. Lupine is one of the undervalued produce consumed in Ethiopia after boiling. Still data on the utilization of maize and lupine in the extruded snack preparation was very limited. Optimization of moisture and barrel temperatures for this snack was not reported clearly yet.

This paper aims to assess Food Variety Score (FVS), Dietary Diversity Score (DDS) and dietary quality of collected complementary foods consumed in Jimma town, southwest Ethiopia.

Multi-stage stratified simple random sampling method was used to identify 384 children who were between 6 to 24 months of age living in Jimma town, Ethiopia. FVS and DDS were assessed based on 24 h recall method. Aliquot of infant’s diet samples were collected from randomly selected 30 household mothers feeding to 6-24 months aged children, and they are combined to get 15 samples by enquiring the ingredients similarly used in preparation. The major nutrients, anti-nutrients were determined with standard procedures. Further, nutrient adequacy and mean adequacy were determined for collected samples.

Results showed that mean FVS was 7.14 ± 4.07 (range 0 to 18) and DDS was 3.44 ± 1.75 (range 1 to 8). Consumption of diversified diet among the studied population significantly associated with residence areas of children’s (p = 0.001), age of the care taker (p = 0.001), occupation of care takers (p = 0.001), monthly income (p = 0.001), average money spent on food purchase per month (p = 0.001). Average mean adequacy of macronutrients (crude protein, crude fat and carbohydrate) was observed as 0.81, micronutrient (Fe, Ca, Zn) mean adequacy was 0.49 and Vitamin A adequacy was 0.34 for the complementary foods. All the complementary foods were reported mean adequacy of < 1 for macro and micro nutrients.

Studies on dietary diversity and dietary quality of the complementary foods were not documented in Jimma town, Ethiopia. The results of this study are highly useful to understand the complementary foods consumption pattern particularly in dietary diversity and food variety. Moreover, results obtained on dietary quality are very useful to recommend further development in complementary food preparations in the study area.

The number of natural and man-made disasters is remarkable and threatened human lives at the time of occurrence and also after that. Therefore, an efficient response following a disaster can eliminate or mitigate the adverse effects. This paper aims to help address those challenges related to humanitarian logistics by considering disaster network design under uncertainty and the management of emergency relief volunteers simultaneously.

In this paper, a robust fuzzy stochastic programming model is proposed for designing a relief commodity supply chain network in a disaster by considering emergency relief volunteers. To demonstrate the practicality of the proposed model, a case study is presented for the 22 districts of Tehran and solved by an exact method.

The results indicate that there are many parameters affecting the design of a relief commodity supply chain network in a disaster, and also many parameters should be controlled so that, the catastrophe is largely prevented and the lives of many people can be saved by sending the relief commodity on time.

This model helps decision-makers and authorities to explore optimal location and allocation decisions without using complex optimization algorithms.

To the best of the authors’ knowledge, employee workforce management models have not received adequate attention despite their role in relief and recovery efforts. Hence, the proposed model focuses on the problem of managing employees and designing a disaster logistics network simultaneously. The robust fuzzy stochastic programming method is applied for the first time for controlling the uncertainties in the design of humanitarian relief supply chains.

The purpose of this study is to inform policy and contribute to the existing literature on low-income housing.

In this study, a case study approach was adopted, and data were collected through secondary data collection that is literature survey and through empirical data collection by conducting face to face interviews and survey of key stakeholders, citizens, and government authorities, and in some cases supplemented by on site photography. The data collected from the field was analysed using quantitative and qualitative techniques. The questionnaires were coded for scientific analysis of data. The information was presented in a structured way that permits for in-depth analysis of the data.

In this study, many paradoxes were noted defying common sense, but nonetheless, they require a solution. It has been concluded that, while efforts to improve settlements and anticipate future ones are becoming more common, the desire for eradication persists in many towns in Botswana.

The major limitation of this study is that it was done during the period of COVID-19 induced movement restrictions. As a result, the preferred face to face interviews with key informants were not possible.

This research informed policy on low-income housing in Botswana. The Government of Botswana can use the findings of this study to formulate policies which help in alleviating challenges currently faced in practice when implementing low-income housing projects. The concept of low-income housing has been adopted by many developing countries including in Africa. As such, results of this study can also be applicable in other developing countries where they can be used as a starting point for evaluating the success of policies and the practice of low-income housing.

This work made original contribution to knowledge by putting the plight of housing the urban poor in Botswana will in perspective.

The behavior compelling the consumer’s intention to purchase organic food has received little attention in developing countries. There is limited knowledge concerning the factors that impact consumer’s intention to purchase organic food in these countries. The study empirically examined the impact of attitude, subjective norms, and perceived behavior control on the consumer intention to buy organic food. The study also aimed to explore whether knowledge about organic food and health consciousness has an indirect effect on the relationship between attitude, subjective norms, perceived behavior control and intention to buy.

To accomplish the study’s objectives, the questionnaires were administered to a convenience sample of 730 consumers using a traditional paper and pencil questionnaire interview (PAPI). Confirmatory factor analysis (CFA) was applied to validate the data, and the Structural equation model (SEM) was employed to test the hypotheses.

The findings showed that subjective norms and attitudes were positively correlated, and they significantly impacted the purchase intention of organic food. The findings also showed that knowledge about organic food and health consciousness has an indirect effect on the relationship between attitude, subjective norms, and intention to buy.

The findings stimulate the momentum to the growing literature, particularly in the developing countries on consumer behaviors regarding organic foods. Also, they will help stakeholders to achieve the marketing strategy for the growth of this sector.

The purpose of this study is to evaluate the housing delivery to the low income through the Self Help Housing Agency (SHHA) in Gaborone, Botswana.

Data were collected through the use of questionnaire, interviews, records searches and observations using the mixed-method approach to establish why people sale houses. Proportionate and simple random sampling was used to obtain a sample size of 93 plots for both new SHHA areas and old SHHA areas at 90 per cent confidence level. For each plot, data pertaining to plot allocation, plot ownership, exchange of ownership over the years were collected.

The findings revealed that the programme has been hit by challenges emanating from the low-income group selling their houses to middle-income group which is predominant in the area thus leading to gentrification. It was also established that the number of sales in SHHA areas were increasing as evidenced from the transfers that were taking place. This could be influenced by the increasing demand for housing due to a growing population in Gaborone. The findings also revealed that demand is one of the determinants of rising prices, thus an incentive to the low-income group to sell their houses at higher prices.

The implication of these findings is that the low income will be displaced and might become homeless in future thus creating an opportunity for illegal settlements to develop.

The study has provided a context in which housing delivery to the low-income group can be safe guarded.