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04 October 2018 | Story UFS | Photo UFS
Prof Ashok Chapagain, recently appointed as Senior
Prof Ashok Chapagain, recently appointed as Senior Professor in the Department of Agricultural Economics in the Faculty of Natural and Agricultural Sciences at the University of the Free State, is looking forward to working with key water-related sectors.
Prof Ashok Chapagain has recently been appointed as Senior Professor in the Department of Agricultural Economics in the Faculty of Natural and Agricultural Sciences at the University of the Free State (UFS). 

Water hub key in collaborations with research institutes

According to Prof Chapagain, the position provides a unique opportunity to help establish the university at the forefront of water research in South Africa. He is looking forward to cross-departmental collaborations on innovative research projects working with key water-related sectors, such as agriculture, business, mining etc., and establishing a water hub that would be key in external collaborations with other research institutes in South Africa and beyond.

Prior to his formal appointment at the UFS, Prof Chapagain has been remotely involved with the Department of Agricultural Economics since 2017 through his support to a number of research projects funded by the Water Research Commission (WRC). 

He is experienced in managing and coordinating international and interdisciplinary projects, ensuring technical quality and project delivery. He has vast cultural and geographical work experience, and specific water-related experience in the fields of integrated water resource management, water footprint assessment, industrial and agricultural efficiency and sustainability, irrigation, hydrology and watershed modelling, flood-risk management, river-basin planning and management, and environmental impact assessment. He has recently left the Water Footprint Network (The Netherlands), where he worked in the capacity of Science Director. Prior to joining the WFN, Prof Chapagain worked as Senior Water Adviser at WWF-UK for about six years.

Systems approach to address water issues

Prof Chapagain holds a PhD in the field of Water Resources Management and Policy Analysis from Delft University of Technology (The Netherlands), an MSc degree in Water and Environmental Resources Management from UNESCO- IHE Institute for Water Education (The Netherlands), and a Bachelor’s in Civil Engineering from IIT Roorkee (India). His professional career of 28 years can be broadly grouped under two inter-related blocks: development projects for 10 years (as an irrigation engineer in Nepal); research and application for 18 years (academia for eight years and applied work for 10 years in the Netherlands and UK). During his MSc and PhD research, he specialised in water resources and environmental management, integrated river-basin management, policy analysis, and systems analysis.

He regularly reviews articles for several scientific journals. Currently he serves as the Editor-in-Chief for the recently launched open access scientific journal H2Open, published by IWA Publishing. In addition, he serves as editor for five scientific journals, and frequently guest edits specific issues for peer-reviewed scientific journals. He has published four books, and 64 other articles and reports (25 scientific journal articles, 40 papers in conference proceedings, book chapters, and technical reports). His publications are widely cited, with 10 436 citations, and has an h-index of 34 and i10-index of 44. He applies a system approach in addressing issues on water, energy, and food securities, where managing local resources also includes global dimensions where key stakeholders are often cross-sectoral and situated outside the boxes. He has been involved in many national and international projects as a team leader, project leader, and international expert in several Asian, European, and South American countries.

For more information about Prof Chapagain and his role in the Department of Agricultural Economics, please contact Prof Chapagain at ChapagainAK@ufs.ac.za, or Dr Frikkie Maré at MareFA@ufs.ac.za or +27 51 401 2824 

News Archive

Carbon dioxide makes for more aromatic decaffeinated coffee
2017-10-27


 Description: Carbon dioxide makes for more aromatic decaffeinated coffee 1b Tags: Carbon dioxide makes for more aromatic decaffeinated coffee 1b 

The Inorganic Group in the Department of Chemistry
at the UFS is systematically researching the utilisation
of carbon dioxide. From the left, are, Dr Ebrahiem Botha,
Postdoctoral Fellow; Mahlomolo Khasemene, MSc student;
Prof André Roodt; Dr Marietjie Schutte-Smith, Senior Lecturer;
and Mokete Motente, MSc student.
Photo: Charl Devenish

Several industries in South Africa are currently producing hundreds of thousands of tons of carbon dioxide a year, which are released directly into the air. A typical family sedan doing around 10 000 km per year, is annually releasing more than one ton of carbon dioxide into the atmosphere.

The Inorganic Chemistry Research Group in the Department of Chemistry at the University of the Free State (UFS), in collaboration with the University of Zurich in Switzerland, has focused in recent years on using carbon dioxide – which is regarded as a harmful and global warming gas – in a meaningful way. 

According to Prof André Roodt, Head of Inorganic Chemistry at the UFS, the Department of Chemistry has for the past five decades been researching natural products that could be extracted from plants. These products are manufactured by plants through photosynthesis, in other words the utilisation of sunlight and carbon dioxide, nitrogen, and other nutrients from the soil.

Caffeine and chlorophyll 
“The Inorganic group is systematically researching the utilisation of carbon dioxide. Carbon dioxide is absorbed by plants through chlorophyll and used to make interesting and valuable compounds and sugars, which in turn could be used for the production of important new medicines,” says Prof Roodt.

Caffeine, a major energy enhancer, is also manufactured through photosynthesis in plants. It is commonly found in tea and coffee, but also (artificially added) in energy drinks. Because caffeine is a stimulant of the central nervous system and reduces fatigue and drowsiness, some people prefer decaffeinated coffee when enjoying this hot drink late at night. 

Removing caffeine from coffee could be expensive and time-consuming, but also environmentally unfriendly, because it involves the use of harmful and flammable liquids. Some of the Inorganic Group’s research focus areas include the use of carbon dioxide for the extraction of compounds, such as caffeine from plants. 

“Therefore, the research could lead to the availability of more decaffeinated coffee products. Although decaffeinated coffee is currently aromatic, we want to investigate further to ensure better quality flavours,” says Prof Roodt.

Another research aspect the team is focusing on is the use of carbon dioxide to extract chlorophyll from plants which have medicinal properties themselves. Chemical suppliers sell chlorophyll at R3 000 a gram. “In the process of investigating chlorophyll, our group discovered simpler techniques to comfortably extract larger quantities from green vegetables and other plants,” says Prof Roodt.

Medicines
In addition, the Inorganic Research Group is also looking to use carbon dioxide as a building block for more valuable compounds. Some of these compounds will be used in the Inorganic Group’s research focus on radiopharmaceutical products for the identification and possibly even the treatment of diseases such as certain cancers, tuberculosis, and malaria.

 

 

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