Back to results
US 12,152,002 B2Granted
Method for the treatment of a composition comprising natural vanillin
AssigneeSpecialty Operations France
InventorsLaurent Garel, Rachid Djillali
Life of this patent
Estimating the term…
Abstract
The present invention relates to a process for treating a composition comprising natural vanillin by separating a compound of formula (I).
Claims18
A process for treating a composition (C) resulting from a process for producing natural vanillin, the vanillin comprising natural vanillin and vanillyl alcohol, said treatment process comprising:
- a step (i) of forming a composition (C1) comprising natural vanillin and a compound of formula (I) formed via an etherification or esterification reaction from said vanillyl alcohol present in composition (C):
- wherein n is equal to 0 or 1, and R is chosen from a linear or branched, saturated or unsaturated alkyl group, optionally substituted with at least one hydroxyl, alkoxy or amine group, or R is a group of formula —(W—O)m—X, wherein W is a linear or branched alkyl chain comprising from 1 to 4 carbon atoms and the average molecular weight of the —(W—O)m—X group is between 200 and 3000 g/mol and X is chosen from H and a unit of formula (II), and
- a step (ii) of recovering said natural vanillin and/or a step of recovering said compound of formula (I) present in composition (C1).
A composition comprising:
- a compound of formula (I)
- wherein n is equal to 0 or 1, and R is chosen from a linear or branched, saturated or unsaturated alkyl group comprising from 1 to 10 carbon atoms, optionally substituted with at least one hydroxyl, alkoxy or amine group, or R is a group of formula —(W—O)m—X, wherein W is a linear or branched alkyl chain comprising from 1 to 4 carbon atoms and the average molecular weight of the —(W—O)m—X group is between 200 and 3000 g/mol and X is chosen from H and a unit of formula (II);
- and
- 4-((4-hydroxy-3-methoxybenzyl)oxy)-3-methoxybenzaldehyde and/or 4-hydroxy-3-(4-hydroxy-3-methoxybenzyl)-5-methoxybenzaldehyde in an amount less than 200 ppm and greater than or equal to 0.01 ppm.
1 more element
Dependencies are inferred from the claim text.