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11 February 2024 | Story Leonie Bolleurs | Photo SUPPLIED
Dr Gladys Belle
Dr Gladys Belle is passionate about water research and human health. Her interest in water and health-related research grew due to the health crisis caused by human exposure to contaminated water sources in South Africa.

Beyond the destruction caused by the Coronavirus during the COVID-19 pandemic, it continues to impact not only the lives of many people but also the environment.

Dr Gladys Belle, a postdoctoral researcher in the Centre for Environmental Management at the University of the Free State (UFS), is currently focusing her research on the risk assessment of pharmaceuticals of emerging concern in water resources, specifically concerning human health and aquatic ecosystems. She explains that her research investigates the occurrence, fate, and behaviour of four drugs used during COVID-19 and assesses the risk these drugs pose to human health and the aquatic ecosystem within the Orange-Senqu River Basin.

“I am passionate about water research and more passionate about human health. My interest in water and health-related research grew due to the health crisis caused by human exposure to contaminated water sources in South Africa,” she states.

Dr Belle adds that she wants to raise awareness and shape the behaviour of local communities in South Africa regarding safe disposal methods. Through programmes such as take-back initiatives, the research seeks to reduce the impact of pharmaceuticals on water resources. She states, “My research will also influence the implementation of various preventive measures, including policies regulating the disposal of drugs into the environment. This research may serve as the basis for better sanitation solutions within communities and improving wastewater treatment processes in the country.”

Focusing on women scientists such as Dr Belle, the UFS will be celebrating the United Nations International Day of Women and Girls in Science on 11 February, commemorating women in the field of science and encouraging girls to pursue careers in this field.

A passion for academia and science

From a young age, Dr Belle was deeply enthusiastic about academia, particularly in the field of science. She studied Environmental Sciences at a university in Cameroon, earning her BSc in 2003. Taking a ten-year break, she focused on being a mum and also worked as Biology teacher in Lesotho.

Despite staying away from the university for an extended period, Dr Belle never let go of her passion and vision to one day become a renowned researcher and academic. In 2012, she enrolled for her honours degree in Environmental Health, followed by her master's in 2013, which she passed with distinction. Immediately after, she enrolled for a PhD and successfully graduated in 2021.

She mentions that her PhD journey came with various challenges, balancing responsibilities as a part-time lecturer, a mother, and a wife while pursuing her studies. “Regardless of all those challenges, I never gave up. Instead, they kept me motivated to get going,” she says.

The same year that she obtained her PhD, Dr Belle joined the university as a postdoctoral researcher. “Being a researcher at the UFS has allowed me to advance my research career and provided a platform for me to meet and learn from the gurus in my field,” she comments. Dr Belle considers Prof Paul Oberholster, the Dean of the Faculty of Natural and Agricultural Sciences and her current supervisor, as a true mentor. He not only teaches her the skill of hard work, but he also encourages her to aim high in research. She also expresses great appreciation to the Directorate of Research Development for its support during her research journey, providing her with access to tools and resources to effectively pursue her work as researcher.

As postdoctoral researcher, Dr Belle expanded her research expertise by publishing in peer-reviewed journals and gaining experience in writing grants and managing projects. In 2023, she received two prestigious research grants. In the Water Research Commission grant, she is leading a team of six national and international experts in risk assessment of emerging contaminants in water resources.

Furthermore, Dr Belle received the Innovation Postdoctoral Fellowship award for 2023 from the National Research Foundation (NRF). She explains that the project focuses on investigating sources, pathways, occurrences, and potential risks of pharmaceuticals of emerging concern on potential receptors in water resources. “This study targets the different wastewater treatment plants (WWTP) in Mangaung, as these plants pose a potential risk of introducing pharmaceuticals into water systems,” she remarks.

Strengthening capacity development

Focusing on understanding the risks of new pollutants in water resources, Dr Belle is well on her way to becoming one of the leading researchers in water and health, a long-standing aspiration of hers. “I see myself working with top researchers in my field, both nationally and internationally, to be part of important international research projects, including working with the European Union and the United Nations,” she says.

In addition to making an impact on the international stage and collaborating with experts in her field, she also aims to transfer and share her skills to the postgraduate students working with her, thereby strengthening their development.

For girls and young women aspiring to embark on a journey in any field of science, her message is that it is possible. “Whatever career path you wish to pursue in sciences, put your mind to it and be passionate about what you do; ultimately, you will testify that ‘it is possible’,” Dr Belle concludes. 

News Archive

Research into surrogate milk important to wildlife conservation
2017-05-08

Description: Prof Garry Osthoff Tags: Prof Garry Osthoff

Prof Gary Osthoff from the UFS Department of
Microbial, Biochemical and Food Biotechnology,
will soon work on a milk formula for elephants.
Photo: Supplied

Research is being done at the University of the Free State (UFS) to analyse and synthetically imitate the unique milk of various wildlife species. This research is not only of scientific value, but also serves the conservation of South Africa’s wildlife species. At the forefront of this research is Prof Garry Osthoff from the Department of Microbial, Biochemical and Food Biotechnology.

Orphaned rhino calf pulled through with surrogate milk
“There is still a lot of research to be done. Naturally the research is of scientific importance, but with surrogate milk having the same composition as the mother’s milk of a specific species, orphaned calves or cubs of that species could be pulled through during a difficult time of weaning. Bearing in mind that exotic animals fetch thousands and even millions of rands at auctions, it goes without saying a game farmer will do everything possible to provide only the best nourishment to such an orphaned animal. In such a case, synthetically-manufactured milk would be the right choice,” says Prof Osthoff.

The fruits of his research were recently demonstrated in Germany when a rhino calf was left orphaned in the Leipzig Zoo. Prof Osthoff’s article: “Milk composition of a free-ranging white rhinoceros during late lactation” was used as a directive for applying surrogate milk for horse foals (which is already commercially available), since the composition of horse and rhino milk largely corresponds. The surrogate milk was used with great success and the rhino calf is flourishing. He mentions that such an orphan is often given the wrong nourishment with the best intentions, resulting in the starvation of the animal despite the amount of cow’s milk it devours.

With surrogate milk having the same
composition as the mother’s milk of a
specific species, orphaned calves or
cubs of that species could be pulled
through during the difficult time
of weaning.

Milk formula for baby elephants in the pipeline
With baby elephants left orphaned due to the increase in elephant poaching for their ivory, several attempts have been made to create a milk formula in order to feed these elephants. To date, many elephants have died in captivity from side effects such as diarrhoea as a result of the surrogate formula which they were fed.

Prof Osthoff recently received a consignment of frozen milk which he, together with researchers from Zimbabwe, will use to work on a milk formula for elephants. They are studying the milk in a full lactation period of two years. During lactation, the composition of the milk changes to such an extent that a single surrogate formula will not be sufficient. Four different formulas should probably be designed.

Prof Osthoff says that of the different species he has researched, elephants are the most interesting and deviate most from the known species.

Although his research to develop surrogate milk is adding much value to the wildlife industry, and although he finds this part of his work very exciting, his research focus is on food science and nutrition. “What is currently authentic in milk research is the study of the fat globules with content, the structure and composition of the casein micelle, and the prebiotic sugars. The knowledge which is gained helps to improve the processing, development of new food products, and development of food products for health purposes,” says Prof Osthoff.

 

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