While juggling her studies at the University of Limpopo, Fhumulani Madzivhandila has been quietly building a small empire that has taken over Limpopo.

The 23-year-old's Moringa infused barbeque sauces called Mastermade are such a hit that she is already producing for 80 customers, which include small shops, catering businesses, households and fast food shops. She is currently selling on average 120 bottles a month...