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01 January 2018 Photo Charl Devenish
ISG’s Sarah Frank researches impact of historic conflicts on society
Dr Sarah Frank, postdoctoral researcher at the ISG.

History has an interesting connection with society, as we all grow up learning about our country’s history and studying it at school. However, what we learn at school is often a glorified version of events. It can sometimes be challenging for historians to come to grips with the most accurate version of a particular ‘history’. 

Dr Sarah Frank is a postdoctoral research fellow with the International Studies Group (ISG), who fell in love with history at a young age. She says, "I was very lucky to have outstanding history teachers at school who fostered my interest and curiosity." Early on, though, she experienced disappointment. "In school, there was a series of biographies of American leaders and presidents written for children. I remember feeling betrayed when I subsequently learnt that the biographies had not presented a well-balanced narrative. That is when I learnt that history could be debated and interpreted—and it is full of nuances."

Interested in conflict shaping lives

Dr Frank was particularly intrigued by the social and political history of the Second World War (WWII). She describes her interest in this way: "The Second World War looms in popular memory as much as in the historical one. I am interested in how conflict shaped people’s lives during and after the war." Being a speaker of French helped her to focus on the impact of the war on France, and having spent a few years living in West Africa, confronted with the lingering colonial past, she decided to home in on the French empire, with particular attention to colonies, captivity, and the repercussions of war experiences when soldiers returned home. Additionally, she explores the themes of decolonisation, the roots of independence movements, and the lingering ties between the former imperial powers and former colonies.

Although she grew up near Boston, Massachusetts, studied for her master's in Dublin, and has lived in far-flung places such as Guinea (while serving with the Peace Corps) and Dakar, Dr Frank says, "I have lived in a lot of places, but Bloemfontein is definitely one of my favourites!"

“I was very lucky to have outstanding
history teachers at school who
fostered my interest and curiosity.”
Dr Sarah Frank

Colonial POWs her new focus

Currently, Dr Frank is writing a book based on her PhD research, which delved into the experiences of approximately 85 000 soldiers in captivity from across the French Empire, who fought in France from 1939-1940. The Germans decided to racially separate the colonial prisoners of war (CPOWs), taking white prisoners to Germany and leaving the colonial prisoners in camps across occupied France. This created opportunities for colonial prisoners to interact with the French civilians, something which rarely occurred in the strict hierarchical colonial regime. Perhaps surprisingly, considering the racism of both the French and German regimes, Colonial prisoners fared better in captivity in France than their French counterparts did in Germany.

Dr Frank's next project will trace the return of the African soldiers who fought during the Second World War. She seeks to understand what happened to them as well as their families when they returned, and to see if their experience actually impacted the growing independence movements which arose following 
WWII.

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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