Postgraduate Research

PhD Food Science

Corné van Schalkwyk
Mass culturing of granules for use in upflow anaerobic sludge blanket (UASB) bioreactors by process induction and microbial stimulation.
Promotor : Prof. T. J. Britz (University of Stellenbosch)

Armelle Ntsame-Affane
Monitoring of lactic acid production during Kefir mass-culturing.
Promotor: Prof. T.J. Britz (University of Stellenbosch). Co-Promotor: Dr G.O. Sigge (University of Stellenbosch).

Elbie Beukes
Enhancement of the probiotic potential of Kefir beverage produced with mass-cultured Kefir grains.
Promotor: Prof. T.J. Britz (University of Stellenbosch). Co-Promotor: Prof. P.J. Jooste (Tshwane University of Technology).

Debora van der Merwe
Bioavailability of major polyphenols present in South African herbal teas, rooibos (Aspalathus linearis) and honeybush (Cyclopia genestoides).
Promotor: Dr. WCA Gelderblom (MRC). Co-Promotor: Prof. E. Joubert (ARC) and Dr M. Manley (Stellenbosch University)

Willem Groenewald
Evaluation of the species Alicyclobacillus present in South African orchards and the prevention of fruit juice contamination by members of the genus.
Promotor: Dr. R.C. Witthuhn (University of Stellenbosch). Co-Promotor: Prof. P.A. Gouws (UWC)

Petro du Buisson
Flavour characteristics of game meat.
Promotor: Prof L.C. Hoffman (Stellenbosch University), Co-Promotor: Dr M Manley (Stellenbosch University.

MSc Food Science

Hanneke Heyneman
Development of a novel fruit juice containing beverage with increased functionality.
Study Leader: Prof. T.J. Britz (University of Stellenbosch). Co-Study Leader: Dr G.O. Sigge (University of Stellenbosch).

Matthys Lombard
The development of a food product that addresses the nutrititional deficiencies amongst children in the Grabouw region.
Study Leader: Dr R.C. Witthuhn (University of Stellenbosch). Co-Study Leaders: Dr. A. Dalton (MRC).

Demona McKinnon
Development of Good Manufacturing Procedures pertaining to ostrich meat bruising.
Study Leader: Prof. L.C. Hoffman (University of Stellenbosch). Co-Study Leaders: Prof. T.J. Britz (University of Stellenbosch).

Hanson Arthur
Bioactivity and Microbial Content of Lippia multiflora Leaves, a Herbal Tea from Ghana
Study Leader: Dr R.C. Witthuhn (Stellenbosch University), Co-Study Leader: Prof E Joubert (ARC-Infruitec-Nietvoorbij).

Linka Bester
DGGE detection and identification of spoilage microbes in South African wines.
Study Leader: Dr R.C. Witthuhn (University of Stellenbosch). Co-Study Leaders: Dr. P. van Rensburg & Dr. M. du Toit (University of Stellenbosch).

Franci du Pisani
Evaluation of microbial enzymes to improve baking quality of flours produced from wheat and the drought resistant cereal grain, triticale.
Study Leader: Dr M. Manley (University of Stellenbosch). Co-Study Leaders: Ms. M. Muller & Prof. W.H. van Zyl (University of Stellenbosch).

Yvette le Roux
PMA-PCR based identification of live and dead probiotic cells in commercial South African food products.
Study Leader: Dr R.C. Witthuhn (University of Stellenbosch). Co-Study Leaders:

Marijké Lötter
Impact of polluted irrigation water on agricultural products - pre- and post-harvest decay rates of contaminating organisms.
Study Leader: Prof. T.J. Britz (University of Stellenbosch). Co-Study Leader: Dr G.O. Sigge (University of Stellenbosch).

Alison Ackerman
Microbial investigation into the link between irrigation water quality and safety of raw and minimally processesd agricultural products.
Study Leader: Prof. T.J. Britz (University of Stellenbosch). Co-Study Leader: Dr G.O. Sigge (University of Stellenbosch).

Nicola Manning
Fruit quality characteristics within the F1 pear breeding population.
Study Leader: Dr. W.J. Steyn (University of Stellenbosch). Co-Study Leader: Ms. M. Muller (University of Stellenbosch).

Melvi Todd
Stability of aspalathin and mangiferin in various food matrices.
Study Leader: Prof. E. Joubert (ARC). Co-Study Leaders: Dr. M. Manley (University of Stellenbosch).

Carien van Zyl
Evaluation of cell-wall (arabinoxylan) degrading enzymes to improve bread baking quality of wheat flours.
Study Leader: Dr M. Manley (University of Stellenbosch). Co-Study Leaders: Ms. M. Muller & Prof. W.H. van Zyl (University of Stellenbosch).

Paul Williams
Application of hyperspectral near infrared apectroscopy (NIRS) in the determination of fumonisins in maize.
Study Leader: Dr M. Manley (University of Stellenbosch). Co-Study Leaders: Dr. P. Geladi (Swedish Agricultural University) and Dr. G.S. Shephard (MRC).

Sox Tsanigab
Evaluation of formulated macrophytic algae based pellet diet and Namibian derived macro-algae Laminaria pallida on growth and quality of abalone (Haliotis midae).

Amanda Brand
Evaluation of the growth profiles of surrogate coliforms on minimally processed foods that had been spray-irrigated.
Study Leader: Prof. T.J. Britz (Stellenbosch University), Co-Study Leader: Dr. G.O. Sigge (Stellenbosch University).

Janita Botha
Chemical and sensory investigation of Brett flavour in selected South African red wines.
Study Leader: Ms M Muller (Stellenbosch University), Co-Study Leaders: Dr. H.H. Nieuwoudt & Dr. A.J. de Villiers (Stellenbosch University), Prof. T. Naes (Matforsk, Norway).

Gerida du Toit
Authentication of wheat types and cultivars for bread- and pasta-making purposes using near infrared (NIR) spectroscopy and hyperspectral NIR imaging.
Study Leader: Dr. M. Manley (Stellenbosch University), Co-Study Leader: Dr. P. Geladi (Swedish Agricultural University).

Yvette Hanekom
Quality of Norwegian Salmon
Study Leader: Prof. L.C. Hoffman (Stellenbosch University), Co-Study Leader: Ms M. Muller (Stellenbosch University).

Nicola Huisamen
Impact of polluted irrigation water on the safety factor of food products that are consumed raw.
Study Leader: Dr. G.O. Sigge (Stellenbosch University), Co-Study Leader: Prof. T.J. Britz (Stellenbosch University).

Colleen Leygonie
Colour stability of meat with a high myoglobin content under MAP.
Study Leader: Prof. L.C. Hoffman (Stellenbosch University), Co-Study Leaders: Ms M. Muller Stellenbosch University), Prof K.

Liezel Slabber
Characterisation and quantification of potato attributes on final product quality and production yield of processed potatoes.
Study Leader: Ms. M. Muller (Stellenbosch University), Co-Study Leader: Dr. M. Manley (Stellenbosch University.

Anreza van der Merwe
Genotypic variation in fruit quality traits related to consumer appeal in apple breeding families.
Study Leader: Dr. W.J. Steyn (Stellenbosch University), Co-Study Leaders: Ms M. Muller (Stellenbosch University), Dr. I. Labuschagne (ARC-Infruitec-Nietvoorbij), Mr. F. Calitz (ARC-Infruitec-Nietvoorbij).