Department of Food Science
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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 ...
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Rooibos fermentation- Characterising phenolic changes using chemometric analysis and kinetic modelling
(Stellenbosch : Stellenbosch University, 2018-03)ENGLISH ABSTRACT: Rooibos is a popular herbal tea produced from Aspalathus linearis, a South African endemic fynbos plant species. Health-promoting properties associated with rooibos are closely linked to its phenolic ...
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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 ...
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Near infrared hyperspectral imaging: a rapid method for the differentiation of maize ear rot pathogens on growth media
(Stellenbosch : Stellenbosch University, 2018-03)ENGLISH ABSTRACT: Maize grain is highly susceptible to the toxin-producing fungal pathogens Fusarium spp. and Stenocarpella spp. Infection of grain with these species leads to maize ear rots but of greater concern is their ...
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Evaluation of rooibos waste plant material for the development of a high-value herbal tea product
(Stellenbosch : Stellenbosch University, 2018-03)ENGLISH ABSTRACT: Rooibos (Aspalathus linearis) is a South African fynbos plant species that is predominantly harvested for consumption as herbal tea. The demand for this herbal tea has grown significantly along with the ...
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Food ingredient extracts of Cyclopia subternata (Honeybush) : variation in phenolic composition and antioxidant capacity
(MDPI, 2012)Cyclopia subternata plants are traditionally used for the production of the South African herbal tea, honeybush, and recently as aqueous extracts for the food industry. A C. subternata aqueous extract and mangiferin (a ...
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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 ...
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Microbial content and anti-microbial activity of Namibian traditionally fermented milk
(Stellenbosch : Stellenbosch University, 2017-12)ENGLISH ABSTRACT: The incorporation of bacteriocins as biopreservatives into model food systems has been studied extensively and has been shown to be effective in the control of pathogenic and spoilage microorganisms. ...
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Resistance to airflow, cooling characteristics and quality of pomegranate fruit inside ventilated packaging
(Stellenbosch : Stellenbosch University, 2015-12)ENGLISH ABSTRACT: Ventilated packaging has found wide scale industry applications in fresh fruit handling and cooling operations. Given variations in fruit physical and thermal properties, optimal package design for a ...
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Influence of lower substrate pH and retention time on the efficiency of a UASB bioreactor treating winery waste water
(South African Society for Enology and Viticulture, 1999)A mesophilic laboratory-scale upflow anaerobic sludge bed (UASB) bioreactor design was evaluated for the treatment of winery waste water. In the first experimental study, the hydraulic retention time (HRT) was shortened ...
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The evaluation of the applicability of Fourier Transform Near-Infrared (FT-NIR) spectroscopy in the measurement of analytical parameters in must and wine
(South African Society for Enology and Viticulture, 2001)Fourier transform near-infrared (FT-NIR) spectroscopy can be used as a rapid method to measure the percentage of sugar and to discriminate between different must samples in terms of their free amino nitrogen (FAN) values. ...
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Phenolic compounds : a review of their possible role as in vivo antioxidants of wine
(South African Society for Enology and Viticulture, 2002)Phenolic compounds are a large and complex group of chemical constituents found in red and white wines which not only affect their quality, but also contribute to their beneficial health effects. The antioxidant properties ...
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Characterisation of whole white maize kernels using spectral imaging
(Stellenbosch : Stellenbosch University, 2017-03)ENGLISH ABSTRACT: Maize (Zea mays L.) is the most important cereal crop grown in South Africa. It is produced widely across the country under diverse environments, and thus a variety of defects tend to occur. Grading is ...
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The occurrence of shiga-toxin producing Escherichia coli in South African game species
(Stellenbosch : Stellenbosch University, 2017-03)ENGLISH ABSTRACT: The consumption of game meat on a global scale is increasing every year and South Africa is no exception. Consumers have started incorporating low kilojoule and low cholesterol products into their ...
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Investigating the effect of magnetisable glass foam particles (MGFP) in an UASB reactor treating synthetic winery wastewater by monitoring biofilm development and activity of colonised MGFP
(Stellenbosch : Stellenbosch University, 2017-03)ENGLISH ABSTRACT: The growing of grapes for wine production is a generational, agricultural practice that has been associated with generating large revenue in South Africa. However, due to one of the outcomes of wine ...
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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 ...
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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 ...
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Green rooibos neutraceutical : optimisation of hot water extraction and spray-drying by quality-by-design methodology
(Stellenbosch : Stellenbosch University, 2016-12)ENGLISH ABSTRACT: Unfermented Aspalathus linearis, otherwise known as green rooibos (GR), contains high levels of aspalathin, a potent C-glucosyl dihydrochalcone antioxidant with antidiabetic bioactivity, unique to rooibos. ...
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Development of advanced chromatographic techniques for the in-depth phenolic profiling of rooibos
(Stellenbosch : Stellenbosch University, 2016-12)ENGLISH ABSTRACT: Rooibos (Aspalathus linearis) is a South African fynbos plant with known health-promoting properties, consumed mainly as a herbal tea. The health-promoting properties of rooibos are associated with its ...
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Effect of pork rind and soy protein on polony sensory attributes
(OMICS International, 2015-01)This study determined whether commercially acceptable polony could be manufactured with varying quantities of chicken mechanically recovered meat (MRM), soy flour (S) and pork rind (R). The experimental design used was a ...
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Die bakmoontlikhede van pelgrim koring
(Stellenbosh : Stellenbosch University, 1935-11)Geen opsomming beskikbaar
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Short-term and sub-chronic dietary exposure to aspalathin-enriched green rooibos (Aspalathus linearis) extract affects rat liver function and antioxidant status
(MDPI, 2015-12-18)An aspalathin-enriched green rooibos (Aspalathus linearis) extract (GRE) was fed to male Fischer rats in two independent studies for 28 and 90 days. The average dietary total polyphenol (TP) intake was 75.6 and 62.7 mg ...
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Comparative genomics of Fructobacillus spp. and Leuconostoc spp. reveals nichespecific evolution of Fructobacillus spp.
(BioMed Central, 2015)Background: Fructobacillus spp. in fructose-rich niches belong to the family Leuconostocaceae. They were originally classified as Leuconostoc spp., but were later grouped into a novel genus, Fructobacillus, based on their ...
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Food consumption changes in South Africa since 1994
(Academy of Science of South Africa, 2015)Food consumption patterns in South Africa have changed dramatically over the past decades and likely will continue to change over the coming decades. Various food-related studies conducted over the last few decades ...
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Comprehensive phenolic profiling of Cyclopia genistoides (L.) Vent. by LC-DAD-MS and -MS/MS reveals novel xanthone and benzophenone constituents
(MDPI, 2014-08)A high-performance liquid chromatographic (HPLC) method coupled with diode-array detection (DAD) was optimized for the qualitative analysis of aqueous extracts of Cyclopia genistoides. Comprehensive insight into the phenolic ...
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Escherichia coli with virulence factors and multidrug resistance in the Plankenburg River
(Academy of Science of South Africa, 2014)Escherichia coli is a natural inhabitant of the gut and E. coli levels in water are considered internationally to be an indication of faecal contamination. Although not usually pathogenic, E. coli has been linked to numerous ...
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Antioxidant properties and effect of forced convection roasting on South African wheats
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: See full text for abstract.
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Investigating the impact of pre-harvesting sprouting on maize hardness using near infrared (NIR) hyperspectral imaging and X-ray micro-computed tomography (μCT)
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: Maize forms an integral part of the human energy intake in South Africa and its quality should always be maintained. A quality attribute important to the dry milling industry is maize hardness. In the ...
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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 ...
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Characterisation of starch from malting barley grown in South Africa
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: South African barley is not always suitable for malting purposes due to unpredictable weather conditions. Malted barley is imported from other barley producing countries such as Australia, the United ...
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