Method for producing purified steviol product using simulated moving bed chromatography
AssigneeOrochem Technologies Inc.
InventorsBabu Siddegowda Antharavally, Anil R. Oroskar, Asha A. Oroskar
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Abstract
Disclosed is a continuous process for the purification of steviol glycosides such as Rebaudioside D and/or Rebaudioside M extracted from the dried stevia leaves or extracted from a fermentation broth using continuous simulated moving bed processes and nanofiltration without the addition of organic solvents to obtain a purified steviol product comprising sweet steviol glycosides. The sweet steviol glycosides can be used as substitutes for caloric sweeteners in beverages and in other food items.
Claims28
A method of purifying one or more steviol glycosides from a mixture, the mixture including the one or more steviol glycosides and at least one impurity, the method comprising:
- passing the mixture through a first adsorbent with a first solvent, the first adsorbent comprising one or more hydrophobic interaction resins or one or more ion exchange resins to provide a first eluate stream, the first eluate stream having the first solvent and a higher purity of the one or more steviol glycosides than in the mixture as measured by weight percentage of the solid content, and
- optionally removing at least a portion of the first solvent from the first eluate stream to provide a reduced first eluate stream.
Dependencies are inferred from the claim text.