Rooibos health research in SA

Rooibos and exercise
Antioxidants play a vital role in protecting tissues from excessive oxidative damage during exercise. With this project, Professor Marnewick and her team want to determine whether the antioxidants in Rooibos, already found to protect the body against other conditions linked to oxidative stress, can also help to protect against exercise-induced oxidative stress, including biochemical damage and inflammatory responses in cells. They will look at the effect of Rooibos on sport performance in a group of volunteers who will take part in several acute exercise regimes.

•  Research leader: Professor Jeanine Marnewick, Cape Peninsula University of Technology

What exactly is in a cup of Rooibos?
Despite extensive studies on the polyphenols in Rooibos, relatively little is known about the polar fraction of Rooibos that is composed largely of polysaccharides and tannins. This study focuses on that part of the chemical makeup of Rooibos, and will try to help us understand how these components influence the sensory characteristics of Rooibos, as well as how they contribute to its health properties.

•  Research leader: Professor Andrew Marston, University of the Free State