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Rebaudioside A (Reb A) is a sweet tasting steviol glycoside extracted and purified from Stevia rebaudiana (Bertoni). Stevia rebaudiana Bertoni is a small perennial shrub of the Asteraceae (Compositae) family that is native to South America, particularly Brazil and Paraguay, where it is known as “stevia” or “honey leaf” for its powerful sweetness (Ferrazzano et al., 2015). Stevia leaves were used by indigenous peoples in Paraguay and Brazil since before recorded history (Carakostas, 2012). Stevia became more widely known outside central South America following the 1887 ‘‘discovery” of stevia by botanist, Antonio Bertoni. Stevia is the generic term used for food ingredients derived from the herb Stevia rebaudiana (Bertoni) (Carakostas et al.,