oa SA Pharmaceutical Journal - Indigenous South African medicinal plants part 11 : Aspalathus linearis ('Rooibos') : medicinal plants
Rooibos is famous for being naturally caffeine-free and its low tannin content minimises the risk of reduced iron absorption, a phenomena frequently found in tea drinkers due to iron-tannin complexation. Rooibos is rich in flavonoids, polyphenols, phenolic acids, oligosaccharides and polysaccharides. The major flavonoids found in Rooibos tea are aspalathin, iso-orientin, orientin and rutin. Aspalathin is a naturally occurring C-glycosyldihydrochalcone and found exclusively in Aspalathus linearis. It is the major monomeric flavonoid present in Rooibos and constitutes at least 20% of the soluble material of the dried green leaves. Rooibos tea also contains various amounts of minerals and nutrients making it a health beverage ideal to use as fluid replacement for infants and athletes.
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