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US 10,941,100 B2Granted
Method for the purification of natural vanillin
OwnerMartine Vibert, Alain Etchebarneinventors
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Abstract
The present invention relates to a method for the purification of natural vanillin, comprising a step involving the stripping of a liquid flow F2 containing natural vanillin. The invention also relates to the natural vanillin that can be obtained using the method of the invention, as well as a device for purifying natural vanillin.
Claims15
A process for the purification of natural vanillin resulting from a biotechnological process, comprising:
- stripping a liquid stream comprising natural vanillin with an entraining gas and/or a vaporized liquid, in which the concentration by weight of natural vanillin in the liquid stream is greater than or equal to 10%,
- wherein a 10% by weight ethanolic solution of the natural vanillin obtained in the step of stripping the liquid stream comprising natural vanillin with an entraining gas has a color of less than or equal to 50 Hazen.
Dependencies are inferred from the claim text.