597210 Disclosed herein is a method for purifying rebaudioside A comprising the steps of: combining crude rebaudioside A and an aqueous organic solution to form a rebaudioside A solution, the crude rebaudioside A comprising rebaudioside A in a purity from about 40 % to about 85 % by weight on a dry basis, and the aqueous organic solution comprising water in an amount from about 10 % to about 25 % by weight and at least two organic solvents, wherein the at least two organic solvents comprise a mixture of ethanol and methanol and heating the rebaudioside A solution at a temperature in the range of from about room temperature to about 40 degree C and crystallizing from the rebaudioside A solution in a single step a rebaudioside A composition comprising rebaudioside A in a purity greater than about 95 % by weight on a dry basis. Additionally disclosed is the method further comprising the steps of: cooling the rebaudioside A solution separating and washing the rebaudioside A composition and drying the rebaudioside A composition.
