Philosophiae Doctor - PhD (Chemistry)

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Electro-analytical protocols for quantitative assessment of phenols in South African rooibos, green and black tea samples
(University of Western Cape, 2022) Abrahams, Dhielnawaaz; Baker, Priscilla
The worldwide tea market was estimated at almost 200 billion U.S. dollars in 2020. It is perceived to rise to 318 billion dollars by 2025. Tea has a long history of prominence around the world. Increases in tea production in Africa over the past decade have aggravated the pressure the industry exerts on natural resources such as water, soil, and vegetation. The increasing numbers of tea production factories coupled with the increased global demand for tea are adding to the growing problem. The growing conflicts over water resources are set to worsen in the context of climate change. This increase has occurred at a time when regional and national legislation is becoming increasingly stringent. These controls have been taken to offset environmental damage. Tea has probably the most elevated substance of polyphenols among food and refreshment items.