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Three Vice-Deans appointed in the Faculty of Natural and Agricultural Sciences

29 September 2023 | Story Veena Naidoo | Photo Supplied

NAS Vice Deans — From left to right: Prof Johan van Niekerk (Vice-Dean for Agriculture), Prof Liezel Herselman (Vice-Dean for Teaching and Learning) and Prof Samuel Adelabu ( Vice-Dean for Research and Postgraduate Studies).

The University of the Free State is proud to introduce three esteemed academics who have been appointed as Vice-Deans within the Faculty of Natural and Agricultural Sciences. These appointments, effective from 1 September 2023, mark a significant milestone in enriching our academic leadership and promoting excellence in teaching, research, and innovation. The distinguished individuals selected for these roles bring a wealth of experience, expertise, and dedication, promising to elevate our institution to new heights.

Prof Johan van Niekerk: Vice-Dean for Agriculture

Prof Johan van Niekerk is a prominent figure in the field of Sustainable Food Systems and Development. With a PhD in Sustainable Agriculture and extensive experience in academia, Prof Van Niekerk is well-positioned to lead as the Vice-Dean for Agriculture at the University of the Free State. He has a strong vision for steering the Faculty of Natural and Agricultural Sciences towards financial sustainability and global recognition.

One of Prof Van Niekerk's primary goals as Vice-Dean is diversifying funding sources for the faculty, aiming to extend beyond government funding by establishing strategic partnerships with industries and foundations. His active involvement in regional and global agricultural forums underscores his commitment to collaborative research initiatives, further enhancing our faculty's reputation.

In response to the pressing issue of climate change, Prof Van Niekerk's research vision is centred on sustainable agricultural production. He plans to leverage the Paradys Experimental Farm, integrating research, teaching, and practical experiences to fortify our foundation for sustainable agricultural innovation. This approach is designed to equip our students for a rapidly evolving employment market and aligns with the university's Vision 130 and the UN Sustainable Development Goals (SDGs).

On his appointment, Prof Van Niekerk said, “I am excited about this position's prospects and am confident that agriculture will help deliver the SDGs and the UFS Vision 130. I look forward to contributing to the continued success of the Faculty of Natural and Agricultural Sciences.”

Prof Liezel Herselman: Vice-Dean for Teaching and Learning

Prof Liezel Herselman, a distinguished academic with nearly three decades of experience, has assumed the role of Vice-Dean for Teaching and Learning. Her extensive academic journey, including various leadership roles within the university, showcases her dedication to education and academic advancement.

In this vital role, Prof Herselman will focus on strategic matters, curriculum innovation, and compliance with academic regulations. Her objective is to align the curricula with Vision 130, making the Faculty of Natural and Agricultural Sciences the preferred choice for prospective students. Prof Herselman emphasises digital transformation and entrepreneurial projects to provide a cutting-edge educational experience for students, ensuring they meet industry needs and are ready for future employability challenges.

On assuming her new position as Vice-Dean Prof Herselman said, “I am honoured and excited about receiving this opportunity to make a positive and constructive contribution to our faculty. I am still to learn the ropes of some of the teaching and learning processes, but I am looking forward to expanding my knowledge and having to move out of my current comfort zone.”

Prof Samuel Adelabu: Vice-Dean for Research and Postgraduate Studies

Prof Samuel Adelabu, an esteemed expert in Geography, has been appointed as the Vice-Dean for Research and Postgraduate Studies. Prof Adelabu has a profound interest in the application of remote sensing and geographic information systems, making him well-suited to lead research and postgraduate activities within the Faculty of Natural and Agricultural Sciences.

His portfolio includes promoting impactful research and postgraduate initiatives in line with the university's Vision 130, with a special focus on visibility, renewal, and reimagination. Prof Adelabu's leadership is anticipated to foster a thriving research culture and enrich the postgraduate experience at the UFS.

Commenting on his appointment Prof Adelabu remarked, “I am excited about the opportunity to bring my expertise and leadership as Vice-Dean for Research and Postgraduate Studies to the faculty, and work with a team of dedicated professionals to advance the institution's research and postgraduate agenda.”

Future endeavours

These appointments underscore the university’s unwavering commitment to fostering a culture of excellence, research innovation, and enhanced learning experiences. The collective expertise and dedication of Prof Johan van Niekerk, Prof Liezel Herselman, and Prof Samuel Adelabu promise a bright future for their respective faculties and the university at large. We extend our hearty congratulations and eagerly anticipate the positive impact they will bring to our academic community.

News Archive

From wheat protein to perfect pizza

2017-09-26

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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