Steviol glycosides are obtained by extracting leaves of Stevia rebaudiana
Bertoni with hot water followed by solvent purification of the water-soluble
extract. Ion exchange resins may also be used during the purification
process. Stevioside and rebaudioside A are the principal steviol glycosides
of the specified material. Rebaudioside C and dulcoside A are secondary
steviol glycosides.Other steviol glycosides may also be present