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13 March 2020 | Story Amanda Tongha and Andre Damons | Photo Johan Roux
 UFS postgraduate welcoming
Attending the Postgraduate Welcoming were, from the left: Itumeleng Mutla, second-year master’s student; Prof Corli Witthuhn, Vice-Rector: Research, Innovation and Internationalisation; Prof Witness Mudzi, Director of the Postgraduate School; Hesma van Tonder, Chief Officer: Research Librarian; and John van Niekerk, a master’s student.

The University of the Free State prides itself on being an institution committed to excellence in postgraduate education. In 2019, the UFS boasted more than 6 900 postgraduate students enrolled for postgraduate diplomas, honours, master’s and doctoral qualifications. Of these, 77% previously enrolled at the UFS, while 23% started at the institution for the first time.

Targeting this group of students who make up 17% of the total number of degree-seeking students, the UFS Postgraduate School formally welcomed new senior students to the university on Friday 6 March. 

Postgraduate success
“It is the best time to be a senior student, and I hope it is a wonderful experience,” said Prof Corli Witthuhn, Vice-Rector: Research, Innovation and Internationalisation in her welcoming address to the more than 150 postgraduate students gathered in the Reitz Hall of the Centenary Complex. 

Giving reasons as to why Kovsie students should consider postgraduate studies, Prof Witthuhn said there are many opportunities associated with making the jump from undergraduate to postgraduate student.  

“All the data shows that postgraduate studies increase employability. It creates the opportunity to deeper engage with the field that you are interested in.”
 
The postgraduate journey 
D
r Musawenkosi Saurombe, Senior Lecturer in the Department of Industrial Psychology who became the youngest PhD holder on the African continent at age 23, was also on hand to offer advice. 

“Are you willing to see the task to completion? How badly do you want it?” she challenged postgraduate students, talking about her journey from 16-year old first-year student to 23-year-old doctoral degree holder. 

Itumeleng Mutla, who is in the second year of her master’s degree in Administration, said she found the speech by Dr Saurombe inspiring and encouraging. “I felt like a groupie and took pictures with her afterwards. We felt inspired by her story and she encouraged me in my own studies. I think I am also going to push to finish my studies earlier,” she said.

John van Niekerk, a master’s student in Education and Psychology, said Saurombe’s talk was brilliant and he would like her to give a talk to learners at Kimberley Boys High, where he is a teacher. 

News Archive

From wheat protein to perfect pizza
2017-09-26

Description: Phd Read more Tags: Barend Wentzel, Department of Plant Sciences, plant breeding, proteins, Agricultural Research Council 

Barend Wentzel received his PhD at the Department
of Plant Sciences during the university’s
winter graduation ceremony.
He is pictured here with Prof Maryke Labuschagne,
professor in Plant Breeding at the UFS.
Photo: Charl Devenish

Barend Wentzel, an alumnus of the University of the Free State’s Department of Plant Sciences, is passionate about plant breeding. 

He literally eats and lives wheat proteins. In 1989 he initiated a breeding programme on arum lilies. “This breeding programme is at an advanced stage,” he said. Besides reading, playing the piano and accordion, Barend, due to the nature of his research at the Agricultural Research Council, also experiments with different types of ciabatta recipes made from sour dough. “I usually make my own pizza on Saturday evenings,” he said.

He is working at the Agricultural Research Council – Small Grain (ARC-SG) at the Wheat Quality Laboratory where he established a Cereal Chemistry Laboratory.

Complexity of flour quality

He explains that the focus of his research is on wheat protein composition. “The research conducted for my PhD study explains the complexity of flour quality to a certain extent, and it further emphasises the influence of the environment and genetic composition on selected baking characteristics. 

“Wheat protein can be divided into different types of protein fractions. These protein fractions contribute differently to dough properties and baking quality and the expression is affected by different components in the environment, including locality, rainfall and temperature. 

“Protein content alone does, however, not explain the variation in baking quality parameters, such as mixing time, dough strength and extensibility, and loaf volume.

“Several methods can be applied to quantify the different protein fractions. I am using high-performance liquid-chromatography (HPLC). The procedure entails the separation of a wheat protein extract through a column with chromatographic packing material. The injected sample is pumped through the column (known as the stationary phase) with a solvent (known as the mobile phase). The specific procedure, size-exclusion high-performance liquid-chromatography (SE-HPLC), is also used by the university’s Department of Plant Breeding, as well as in several international Cereal Chemistry Laboratories,” said Barend.

Dough strength and to loaf volume
“One of the highlights from the study was the positive contribution of the albumin and globulin protein fractions to dough strength and to loaf volume. The findings were wheat cultivar specific and the growing environment influenced the expression. The contribution of these protein fractions was much larger than previously reported for South African wheat cultivars,” said Barend. 
“Previous reports indicated that these protein fractions had a non-specific contribution to the gluten network during dough formation. The findings from this PhD justify further research on albumins and globulin proteins.” 

The Cereal Chemistry Laboratory at ARC-SG is involved in postgraduate student training under Barend’s guidance. He serves as co-promoter for several MSc and PhD students. He is also a collaborator on an international project with the International Maize and Wheat Improvement Centre (CIMMYT) in Mexico. Barend is furthermore working on improving wheat quality for processing and health purposes as a member of the expert working group of the International Wheat Initiative. 

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