Potato is an important source of energy to most micronutrient malnourished affected population in South Africa. Improvements through bio-fortification can therefore enhance access to essential micronutrients. The study was aimed at determining the level of variability of iron and zinc concentration among 20 potato genotypes as a preliminary step for future breeding program. The materials were evaluated using inductively coupled plasma optical emission spectrometry. Statistical analysis indicated significant (P<0.001) variation of Fe and Zn among the genotypes. The average concentration ranges from 34.67 to 76.67 mg kg-1 and 12.88 to 66.1 mg kg-1 for iron and zinc respectively. The best performing genotypes were cultivar Mnandi, Hertha, Buffelspoort and breeding lines-N105-1, 00-S100-33 and 03-627-50. Iron concentration was positively correlated with Zinc concentration. The study showed that enough variability of Fe and Zn concentration exist among the evaluated genotypes, which can be exploited for use in potato bio-fortification breeding programme. / Agriculture, Animal Health and Human Ecology / M.Sc. (Agriculture)

Text in English / The purpose this study was to explore food habits and nutritional behaviours of adolescents in a school in Lenasia South, in Gauteng Province. Qualitative, explorative research was conducted in order to recommend effective prevention strategies of non-communicable diseases. Adolescents from the selected secondary school formed the sample of the study. Data collection was done using focus groups’ discussions. Three focus group discussions were conducted in the study. The first group comprised of thirteen male adolescents, followed by ten female adolescents and the final group was a combination of both female and male learners to produce a homogenous group. Specific common eating habits and nutritional behaviours emerged from the focus group discussions which included skipping meals, high consumption of high energy dense foods and sweetened beverages. Consequently, when developing intervention programs and policies to improve health of adolescents, environmental influences that undermine efforts to improve adolescent’s dietary behaviours must be addressed. / Health Studies / M.P.H.

This study demonstrated that the demographic profile of the Eastern Cape Province portrayed high levels of poverty and underdevelopment in the mostly rural population. This is despite the fact that the Eastern Cape is characterized by a rich endowment of natural resources, hosting a wide range of natural plant species, numerous rivers, water springs from mountains and no less than six biomes due to the variety of climatic conditions prevalent in the Province. In contrast, the natural resources found in the Province were regarded to have a high potential to grow and transform the economy of the Province. In this study, the integrated approach was conceptualized, developed and implemented in action within the rural communities selected with varying degrees of success, as a function of the material and objective socio-economic conditions prevailing in each community. A model for rural enterprise development based on agricultural production utilizing the principles of Community-Public-Private Partnerships was conceptualized and executed with the assistance of specialist professionals from various disciplines and organizations. Case studies structured on the basis of methodologies derived from the integration of natural sciences and indigenous knowledge systems were conducted to demonstrate the feasibility of the conceptual framework of the study as indicated by the following case studies. The first case study undertaken was the development of agricultural enterprises in the selected rural communities in joint ventures through the commercial production of food and vegetable crops for local markets and to provide nutrition for the rural communities as the first line of therapy against the HIV/AIDS infection and other diseases associated with malnutrition. The second case study was the establishment of an agricultural enterprise in partnership between rural communities, government agencies and agricultural specialist for the commercial production of grain crops, namely, Sorghum alternating with Wheat to satisfy the demand of local markets for these crops. The third case study was the establishment of a community-based enterprise through the commercial production of two Pelargonium plant species, namely, Pelargonium reniforme and P. sidoides. The two species had a high market demand in the pharmaceutical industry; hence, the plant species were V domestically cultivated to satisfy the industry demand and to ensure the survival of the plant species. The enterprise succeeded in sustaining the livelihoods of the rural communities and conserving the plant species. The fourth case study was the commercial production of essential oil-producing plants in six selected rural communities providing employment for some of the members of these communities even though the initial phase of the start-up enterprise was a trial cultivation to determine the suitability of the environmental and climatic conditions for the propagation of the selected essential-producing plants. The demand for essential oils in local and international markets was determined to relatively high. The incorporation of Indigenous Knowledge Systems of the rural communities in the planning and implementation processes in the areas of Commercial Agricultural Production and Primary Health Care resulted in a gradual paradigm shift on the part of rural communities from a dependence mindset to one of self-reliance that is critical for sustainable rural economic development and the improvement of rural livelihoods. An integrated approach in the strategic planning and execution that involved the rural communities by government stakeholders, the academic community and other stakeholders from the Private Sector was piloted. The recognition of Indigenous Knowledge Systems by all the relevant stakeholders and their essential role in rural enterprise development, food production and primary health care as a pre-requisite for a successful transformation agenda was highlighted as never before. An all-inclusive approach that accorded the rural communities the status of equal partnership had a positive impact on most aspects of planning and implementing programmes for sustainable rural economic development and biodiversity conservation. Working in partnership with rural communities was found to be a challenge; hence, an understanding of the sub-cultures and the social dynamics that often manifested themselves in the form of internecine conflicts became necessary for successfully initiating the research programme in the rural communities. Furthermore, recognition of the rural communities as an integral part of the solution towards biodiversity conservation and the sustainable exploitation of natural resources was found to be a critical component for an effective strategy to ensure the continued survival of the endangered plant species. This attitude underpinned the co-operation of the rural communities and the overarching goals of rural transformation towards the consistent and sustainable improvement of rural livelihoods. Theapproach also marked a radical shift from all the preceeding practices in biodiversity conservation and the management of sustainable natural resource utilization. The study demonstrated that the integration of Indigenous Knowledge Systems and Natural Sciences for sustainable rural economic development with the ultimate strategic objective of contributing towards the reduction of poverty, the improvement of the quality and cost-effectiveness of primary health care and adequate food production is feasible.

The objective of this study was to compare the nutrient status of full scavenging and semi-scavenging village chicken production systems. The semi-scavenging chickens were given broiler finisher mash between 14-24 weeks of age, whilst the full scavenging relied on natural foraging. The study also sought to compare the quality of meat from chickens from the two systems. After slaughtering the chickens, the crop contents were physically separated and analysed for chemical composition. Meat pH and colour were measured on the breast muscle of individual carcasses and a consumer sensory evaluation was also done on the breast muscle. The mean crop content weights per day were significantly higher in full scavenging chickens (±16.7g/day biomass) than in semi-scavenging chickens (±9.14g/day). Dry matter, calcium, and phosphorus levels were higher in the crop contents of the full than in the semi-scavenging chickens but crude protein, crude fibre and metabolisable energy were higher in the latter system. Semi-scavenging (1.3 ± 0.05kg) carcasses were heavier (P<0.05) than full scavenging ones (1.0 ± 0.06kg). The ultimate pH (24h) (pHu) of meat from full scavenging chickens (6.0 ± 0.03) was higher (P<0.05) than that of meat from the semi-scavenging chickens (5.7 ± 0.04). Meat from the full scavenging chickens had higher L* values (60 ± 1.2) than meat from the semi-scavenging chickens (47 ± 0.8). The a* value of meat of full scavenging chickens was significantly (P<0.05) less (4 ± 0.4) than that of meat from semi-scavenging chickens (15 ± 1.3). There was a significant positive (0.60) correlation between pHu and L* of meat from village chickens across rearing systems. The semi-scavenging system meat had better sensory attributes than the meat from the full scavenging system. Female consumers scored the typical flavour of village chicken meat across rearing systems higher (P< 0.05) than male consumers. The Shona consumers scored the meat higher (P< 0.05) than the Xhosa, Zulu, Ndebele and other tribes for initial juiciness, first bite impression and muscle fibre and tenderness of the chicken across rearing systems. Consumers scored of the meat from the semi-scavenging system higher (P<0.05) on initial juiciness (4.3 ± 0.20), first bite impression (4.2 ± 0.197), muscle fibre tenderness (4.5 ± 0.217) than meat from the full scavenging chickens. There were positive correlations (0.46) between aroma intensity and overall flavour intensity across both rearing systems. The semi-scavenging system produced better carcass characteristics, lighter (L*) meat and more consumer acceptable meat than full scavenging chickens. Therefore the full scavenging rearing system had better nutrient composition in its scavenging feed resource base, although the semi-scavenging systems produced chickens with better carcass, meat pH, colour and sensory characteristics than the full scavenging chickens.

Submitted in fulfilment of the requirements of the Masters Degree of Applied Science in Food and Nutrition, Durban University of Technology, Durban, South Africa, 2016. / Introduction: Food vending is becoming a very important and a useful service. Moreover, socioeconomic factors and lifestyle changes forces customers to buy food from street vendors. Since the food industry is growing worldwide, good hygiene practices coupled with food safety standards is of vital importance. Currently there is inadequate information or scientific data on the microbiological quality and safety of vended foods in South Africa more especially in Durban. To date limited research has been conducted on the food handlers (FH’s) operating as food vendors in different areas of Durban, and a lack of documented evidence about the knowledge that food vendors have on food safety and food hygiene has resulted in the interest in this research. Aim: The aim of this study was to ascertain food hygiene practices and knowledge, food safety practices and the nutritional value of the food served by various food vendors at DUT in Durban. Method: A total number of 15 food vending stalls (comprising of 15 managers and 39 food handlers) situated within the Durban University of Technology (DUT) Durban campuses participated in the study. The study was conducted on all food vendors who prepared and served food items on site. Data collected was of a quantitative nature with two sets of questionnaires (Managers questionnaires and (FH’s) questionnaires), observation sheets to observe FH’s during food preparation and cleanliness, and weighing and recording of menu items prepared and served in order to determine portion sizes and the nutritional content. All the administration of data was completed by the researcher on a Microsoft Excel spread sheet and analysed on the SPSS software version 20. Recording and weighing of menu items was done using an electronic food portion scale. A statistician was consulted to assist in the interpretation of the data. Results: The majority (66.67%) of vendors were females with the educational level that was fairly high, (73.33%) had secondary education. Most of the respondents (80.00%) had been in the food vending business for more than 3 years. The availability of proper infrastructure was poor, 40.00% of the vendors obtained running water from the kitchen taps within the stalls and 60.00% obtained water from a communal sink tap outside the food stalls. Most vending stalls 66.67% had no proper storage facilities; perishable stock was stored on refrigerators, while non-perishable food items were stored on built-in shelves, on top of fridges, on the floor, in storage containers, and on tables due to shortage of space. Thirty three percent of the vendors had designated storerooms for non – perishable items. Food preparation and cooking space was very minimal as a result the researcher observed that in some stalls white and red meat was grilled in the same griller and that increases the chances of cross-contamination. The researcher also observed that the area where most of the vending stalls were situated had no shelter and paving, as a result during food preparation and service, food was exposed to dust, air pollution and flying insects. Most managers 73.33% and FH’s 56.41% attended hygiene and food safety training but observational findings indicated that important hygiene practises such as washing of hands before serving food were not practised. Another concerning observation regarding personal hygiene was that students did not wash hands prior to eating food despite the availability of tap water within the dining area. The majority of managers had contracts with suppliers, and grocery items were mainly purchased from wholesale stores, meat items from formal retailers. A large number of managers 73.33% bought and delivered perishable products themselves using own cars, while 13.33% used refrigerated trucks from the suppliers for the delivery of perishable goods. In that way delivery temperature of food items was not monitored and maintained. The nutritional value of food served by vendors was imbalanced with the majority of the meals exceeding the recommended energy contribution from fat of 15–30%, the carbohydrates (CHO) contribution was lesser than the stipulated percentage of 55-75%, and the mean energy contribution of protein was within the recommended percentage of 10-15%. The mean energy contribution made by fat in all meals was higher than the recommended percentage 15-30%, with the highest contribution of 63.59% and the lowest of 34.12%. High fat meals were of great concern as prospects of cholesterol, high blood pressure and heart diseases were high. The CHO content of meals was below the stipulated percentage of 55- 75% with the maximum percentage of 49.86% and the minimum of 31.04%. The mean energy contribution of protein was 15.36% which was generally within the recommended percentage of 10- 15%. Furthermore, the study revealed that out of the 12 881 kJ recommended for men and 10 093 kJ for females; male students on an average were consuming approximately 14% more kJ than recommended, and female students were consuming approximately 27% more kJ than recommended from the meals. Frequent consumption of such high energy meals can lead to overweight and obesity among young adults. Conclusion: The results of the study revealed the urgent need for basic infrastructure such as a decent food kiosk with adequate working space, proper washing and storage facilities to improve food safety and hygienic practices. Even though food vendors claimed to have received hygiene training, knowledge attained was not effectively practiced or demonstrated; and that placed students at risk of foodborne illnesses. Furthermore, the nutritional value of food served by vendors was imbalanced with the majority of the meals exceeding the recommended energy contribution from fat of 15–30% and the CHO contribution being lesser than the stipulated percentage of 55-75%. Recommendations: Extensive training programme and regular supervision should be put in place by management of the Institution to ensure that proper hygiene practices are in place and also to ensure the quality of food served to students is of acceptable standard. All vending stalls to be provided with basic infrastructure. Food court yard to be well sheltered to avoid food being contaminated by air pollution, dust and pests. DUT management, together with the Department of Health, should organise nutrition awareness programmes to enlighten students about the dangers of unhealthy eating habits. / M

Dietary intake is a strong determinate of the health of an individual. Healthy eating is an important prevention to non-communicable diseases. If behaviour is to be changed insight into what the attitudes and barriers are to eating healthily amongst adolescents is imperative. This can provide knowledge for future prevention campaigns for healthy eating to prevent overweight and obesity. The purpose of the study was to quantitatively describe what attitudes adolescent females have towards healthy eating and what potential barriers omits them from adopting healthy eating behaviours. Data collection was done using structured questionnaires. Girls (N=73) from 3 public all girls’ high schools within Durban, KZN, participated in this study. The findings revealed that overall adolescent girls have a positive attitude to healthy eating. A lack of time, the foods sold in the school shop and the conveniences of less healthy food have been identified as barriers to healthy eating. / Health Studies / M.A. (Public Health)

Department of Nutrition / MSCPNT

DEd (Curriculum Studies) / Department of Curriculum Studies / Although on its introduction the focus of the National School Nutrition Programme (NSNP) was to improve health and nutritional status of South African school children, it was put in place to improve school attendance, curb absenteeism and drop-out by children of school going age as a result of hunger and poverty. It was also meant to improve the learning capacity of children since access to nutritious meals has the potential to improve their concentration levels during instructional discourses, which can enhance the quality of educational outcomes. This study explored the views of education stakeholders on the challenges they encountered in implementing the NSNP in achieving its educational goals at two schools in the Vhembe District in South Africa. Specifically, the study investigated how the NSNP influences school access, attendance and participation at schools that are benefiting from the NSNP in an endeavour to establish strategies for improving the quality of schooling. Abraham Maslow’s theory of hierarchy of needs was applied to explain how children’s basic needs can be a foundation to their educational needs and aspirations. A case study design involving two schools was adopted for the study and the qualitative research approach was employed. Purposive sampling method was employed to select two secondary school principals, ten secondary school class teachers per school, ten learners who were beneficiaries of the NSNP and ten of their counterparts who were not on NSNP per school, and two circuit NSNP officers. Individual and focus group interviews, documentary study and observations were used to collect data, which were analysed thematically. The findings of the study revealed that: the National School Nutrition Programme is a credible strategy for learners from poor backgrounds to access schooling and reduce their school drop-out; there was no clear difference in academic performance between leaners who participated and those who opted out of the Programme; educators felt overwhelmed by administrative work for the feeding programme, which compromised on their co-responsibilities; there were inadequate workshops to equip service providers of the Programme; food was provided under poor hygiene conditions which made some learners to opt out of the Programme; Programme records had inaccurate information. Based on the main study findings, the study recommended that the programme should continue as the majority of learners were benefiting; the Programme should have its own v administrative personnel; there should be regular staff development workshops on the Programme; schools should erect proper infrastructure for food storage and service; a multi- ministerial team of experts from health, education Programme; and all schools that have the Programme should maintain nutrition gardens for provision of fresh food. Finally, for the effective role-taking by duty-bearers for the Programme, the study concluded by recommending a model called the Increasing Achievement Mode for the National School Nutrition Programme.

MA (Xitsonga) / Ehansi ka Senthara ya M. E. R. Mathivha ya Tindzimi ta Afrika, Vutshila ni Ndhavuko / See the attached abstract below

MSCPNT / Department of Nutrition / Malnutrition is a problem facing virtually every country in the world. Inappropriate feeding practices such as bottle feeding, early introduction of weaning foods, lack of variety in the diet are a known major cause of the onset of malnutrition in young children. Lack of nutrition knowledge, particularly about feeding practices, is critical as it affects the nutritional status of children. The purpose of this study was to determine the influence of caregivers’ nutrition knowledge and feeding practices on the nutritional status of 2 to 5 years old children in the Makhuduthamaga Municipality, South Africa. A crosssectional study with an analytical component was carried out in the Makhuduthamaga Municipality in the Limpopo Province, South Africa. One hundred and twenty children aged 2 to 5 years and their caregivers were conveniently sampled from four villages. A validated questionnaire was used to gather demographic information, caregivers’ nutritional knowledge and feeding practices. Anthropometric measurements taken were weight, height and mid-upper arm circumference (MUAC) of the children as well as weight and height of the caregivers. Descriptive and inferential statistics were utilized. Chi-square was used to determine the influence of caregiver’s nutrition knowledge and feeding practices on the nutritional status of children. The significance level was set at p< 0.05. Most caregivers (66.7%) were between the ages of 19 and 35 years. More than half (54.2%) of the children were male. Most of the caregivers (70%) had attended school up to secondary level and only 4.2% had obtained a tertiary qualification. Most of the caregivers (85%) were unemployed. Children were mostly (70.2%) cared for by their biological mothers. Some caregivers reported not to have any source of nutrition education (41.7%), while 43.3% reported that health professionals were their source of nutrition education. Both nutrition knowledge and feeding practices were not satisfactory in the current study. Almost all children (94.2%) were breastfed at some stage in their lives. However, 47.5% were given infant formula while they were still less than six months old. It was found that more than half of the caregivers (62.5%) introduced solids foods before 6 months. Maize meal soft porridge was reported as the main solid food first introduced to 66.7% of the children, followed by infant cereals (25%). Stunting was found in 41.7% of children. Prevalence of overweight and obesity was observed amongst both caregivers and children. Overweight and obesity prevalent of caregivers was at 30.8%. No significant correlation was observed between the caregivers’ nutrition knowledge, the feeding practices and the nutritional status of children. However, family income showed positive correlation with the nutritional status of children. Nutrition education strategies intertwined with economic empowerment of mothers should be enforced to capacitate caregivers to voluntarily make proper feeding practices. / NRF