Prof Korsten is currently the Co-Director of the DST/NRF Centre of Excellence Food Security and is responsible for the Food Safety programme. Given the current Listeria outbreak and the need for a national food safety system that will provide a credible framework for the country, in this context it is perhaps important to note that Prof Korsten developed a Conceptual Framework for a Food Safety Model for South Africa for the South African Bureau of Standards (SABS) and Department of Tarde and Industry (DTI) (2002-2004) and later was invited by the Department of Agriculture Forestry and Fisheries (DAFF) and Department of Health (DoH) to do a national food landscape assess all legislation in the country dealing with food, assess the regulatory models, inspection bodies, assess national laboratory capacity and the food industry (2005-2009) titled: A Country Profile on the Food Control System in South Africa. Prof Korsten’s research work is making a huge impact in terms of food safety assurance systems for the broader agricultural and food industries. Prof Korsten has since published 26 peer reviewed papers over the past six years in this field and has been awarded numerous major research grants from the Water Research Commission (Three grants 2009; 2012; 2016), awarded the EU 7th Framework Veg-i-Trade as collaborator 2011 and the USA PEER project 2017). In recognition of her excellent work in water food safety she received the Water Research Commission: Winner of the Human Capital Development Award in the Water and Science Sector category at the WRC 3rd Biennial Knowledge Tree Awards ceremony (2017). She has also been extensively recognised by the University of Pretoria Exceptional Achievers awards (2005-2007; 2008-2010; 2011-2013; 2014-2016). Prof Korsten is also the Editor in Chief for Crop Protection (Index rating 1.3) since 2014.
Prof Korsten has been involved in food safety standards and accreditation and has been a member of South African National Accreditation Systems (SANAS) Advisory Forum since 2008. She was also a member of Certification (STC) for SANAS (2006 -2014) for SANAS certification bodies and Good Laboratory Practices and was a representative for SA at the ISO/ CASCO technical Committee for ISO 22003 (2006- 2008). In recognition for her outstanding contribution to the South African food safety assurance landscape she received the award for special recognition for a significant contribution towards improving and promoting SANAS accreditation 2006 and 2011. She was also a board member of the National Laboratory Association (2005 – 2016).
Prof Korsten has contributed to the South African science community in a broader context directing agricultural research and training in plant health, sanitary and phytosanitary aspects of trade and food security. She was elected to the NRF Assessment Committee for Microbiology and Plant Pathology in 1999 to 2002 contributing significantly to the national science rating system in the field of natural and agricultural science. She further contributed to the National Science and Technology Forum (1996 – 2000) and chaired several Scientific Committees since then such as the Information and Communication Technologies and Food security in Sub-Saharan Africa organised by the NRF; and the NRF Panel "Thrust" programme Food Production and Food Security (1995-2001). More recently she has been involved in the African Research Universities Alliance (ARUA) Food Security (2017); South Africa-Japan University (SAJU) Forum (2017); and in the South African National Bureau of Standards (SABS), special working group on novel technologies in agriculture (2018). Prof Korsten has also been a member of the SABS Food Sector Advisory Forum since 2013 were she has been involved in revising existing and developing new food safety standards at a national and international level.
Her involvement, contribution and recognition in the discipline plant pathology can best be illustrated through her election as a Fellow of the South African Society for Plant Pathology in 2013. Prof Korsten was elected President of the Southern African Society for Plant Pathology (1996-2000) which she proudly represented on international forums such as the International Society for Plant Pathology (ISPP). She has been actively involved as co-representative for the Southern African Society for Plant Pathology: National Science and Technology Forum (1995 and 2000); representative of the Southern African Society for Plant Pathology: Liaison committee of professional societies concerned with agriculture (1994-1996); International Union for Microbiological Sciences (1996-2000); been an invited member since 1994 of the Sub-committee Postharvest Pathology of the ISPP and organised the IVth International Symposium on Postharvest Pathology. Member of the board of Postharvest Innovation initiative with the Fresh Produce Exporters Forum of the Phi 2 programme: Department of Science and Technology (2009 -2013). Prof Korsten is also the Chair of the Global Task force on Food Security for the ISPP since 2013 and was the convener of the 3rd International Global Food Security Conference in Cape Town (2017).
In the context of training agricultural students and particularly black academics in South Africa Prof Korsten played a leading role at the University of Pretoria with the dean of the Agricultural Faculty at the time and Bongiwe Njobe who later became the Director National Department of Agriculture. Prof Korsten was elected the chairperson of the Academic Advisory Committee for the Post Graduate School of Agriculture and Rural Development (1996 – 2002) and became the associate Director of the post-graduate school of Agriculture and Rural Development in 1999.