Doctoral Degrees (Food Science)
Recent Submissions
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Investigation of the prevalence and characterisation of infection by Kudoa thyrsites and K. paniformis in South African marine fish species
(Stellenbosch : Stellenbosch University, 2018-12)ENGLISH ABSTRACT: Post-mortem myoliquefaction and formation of black pseudocysts in marine fish muscle are associated with infection by Kudoa thyrsites and/or K. paniformis. These quality defects become apparent only upon ... -
Development and validation of prediction models and rapid sensory methodologies to understand intrinsic bitterness of Cyclopia genistoides
(Stellenbosch : Stellenbosch University, 2018-03)ENGLISH ABSTRACT: Cyclopia species, endemic to South Africa, is used for the production of honeybush tea. This herbal tea has grown from a product consumed only locally to one currently marketed worldwide. Cyclopia species ... -
Monitoring fungal infection in maize with high resolution X-ray micro computed tomography
(Stellenbosch : Stellenbosch University, 2018-03)ENGLISH ABSTRACT: Maize (Zea mays L.) is an important cereal crop used for human food as well as animal feed. Maize is however vulnerable to contamination by fungi that produce harmful mycotoxins. Fusarium verticillioides ... -
Xanthones and benzophenones from Cyclopia genistoides (honeybush) : chemical characterisation and assessment of thermal stability
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: Numerous health-promoting benefits may be derived from the consumption of honeybush tea, a herbal infusion prepared from the leaves and fine stems of the endemic Cape fynbos genus, Cyclopia. These ... -
Non-destructive measurement of pomegranate fruit quality
(Stellenbosch : Stellenbosch University, 2017-12)ENGLISH ABSTRACT: Pomegranate (Punica granatum L.) is an emerging fruit within the South African horticultural industry, which has experienced dramatic growth in annual production from 350 tonnes in the 2009 season to over ... -
Modelling and optimization of active modified atmosphere packaging for pomegranate arils
(Stellenbosch : Stellenbosch University, 2017-12)ENGLISH ABSTRACT: Active modified atmosphere packaging (active-MAP) is a well-proven postharvest technology used to preserve the quality and extend the storage and shelf life of fresh fruit under optimally designed conditions. ... -
Antimicrobial effects of chitosan and essential oils on postharvest diseases of pomegranate fruit
(Stellenbosch : Stellenbosch University, 2017-12)ENGLISH ABSTRACT: Pomegranate (Punica granatum L.) fruit diseases often caused by a range of fungi and bacteria, pose significant financial, nutritional and postharvest losses along the value chain. This study aimed at ... -
Profiling of traditional South African biltong in terms of processing, physicochemical properties and microbial stability during storage
(Stellenbosch : Stellenbosch University, 2017-03)ENGLISH SUMMARY: In South Africa, there are no processing guidelines for biltong production and therefore the industry uses different processing parameters which results in variation in the product. The same process was ... -
Investigating physiological and quality response of pomegranate fruit to controlled atmosphere storage
(Stellenbosch : Stellenbosch University, 2017-03)ENGLISH ABSTRACT: Pomegranate (Punica granatum) is a highly valued crop with a huge economic potential. It is very nutritious with numerous bioactive compounds with the potential to prevent a certain type of cancers and ... -
The authentication of regionally unique South African lamb
(Stellenbosch : Stellenbosch University, 2017-03)ENGLISH ABSTRACT: Noted for its unique herbaceous flavour which is imbued from a diet of indigenous fragrant plants, Karoo lamb is marketed as one of South Africa’s finest meat products. It is also the first fresh meat ... -
Characterisation and quantification of microstructure, physicochemical and functional properties of oven and forced convection continuous tumble roasted cereal grains
(Stellenbosch : Stellenbosch University, 2017-03)ENGLISH ABSTRACT: The use of roasted cereal grains in foods can improve organoleptic properties, enhance shelf life, ease incorporation into ready-to-eat products and increase antioxidant activity. Structural, physicochemical ... -
Factors influencing colour variation and oxidative stability of South African game meat species
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: It is believed by many that the future of South African game farming depends on the development of a sustainable game meat industry. To develop such an industry, game meat products of consistently high ... -
Factors influencing the flavour of the meat derived from South African game species
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: In South Africa, wild and free-living animal species that are dependent on the natural vegetation present in their habitat as food source, are referred to as ‘game species’. Game species are utilised for ... -
Effect of forced convection roasting on physicochemical and antioxidant properties of whole grain maize (Zea mays L.) and optimisation of roasting conditions
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: Maize (Zea mays L.) is the most cultivated cereal and grain crop in the world and it is used as a staple food in developing countries such as Nigeria, South Africa, Mexico and economically less privileged ... -
Polycyclic aromatic hydrocarbons (PAHs) and organochlorine pesticide residues in selected marine fish species along the coast of South Africa
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: Fish consumption is being threatened by the accumulation of hazardous substances within the flesh due to natural occurrences and anthropogenic activities. This tends to undermine the health benefits derived ... -
Characterising the flavonoid profile of various citrus varieties and investigating the effect of processing on the flavonoid content
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: Phenolic compounds in citrus fruit are specific for each species and variety and may be influenced by environmental conditions during the growing season and post-harvest practices. The exact chemical ... -
Status of mercury and other heavy metals in South African marine fish species
(Stellenbosch : Stellenbosch University, 2015-12)ENGLISH ABSTRACT: Fish is an important food source in South Africa as it is globally, thus the importance of determining and monitoring its safety in terms of metal contaminants and consumer safety. Effective methodology ... -
Maize endosperm texture characterisation using the rapid visco analyser (RVA), X-ray micro-computed tomography (μCT) and micro-near infrared (microNIR) spectroscopy
(Stellenbosch : Stellenbosch University, 2015-04)ENGLISH ABSTRACT: Maize kernels consists of two types of endosperm, a harder vitreous endosperm and a softer floury endosperm, and the ratio of the vitreous and floury endosperm present mainly determines the hardness of ... -
LTP1 and LOX-1 in barley malt and their role in beer production and quality
(Stellenbosch : Stellenbosch University, 2014-04)ENGLISH ABSTRACT: Selection of raw materials for a consistent and high quality end product has been a challenge for brewers globally. Various different factors may influence quality and although a great number of methods ... -
Modified atmosphere packaging of pomegranate arils
(Stellenbosch : Stellenbosch University, 2013-03)ENGLISH ABSTRACT: Modified atmosphere packaging (MAP) is a dynamic process of altering gaseous composition inside a package. It relies on the interaction between the respiration rate (RR) of the produce, and the transfer ...
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