Patent Pick: Spotlight on Vanillin, Literally


Give 3,3'-dimethoxy-4,4'-dihydroxy stilbenes just one minute (or more) under light to intensify its vanilla-like odor, as this patent application explains.

Light-intensified 3,3'-dimethoxy-4,4'-dihydroxy stilbenes for vanillin aroma
WIPO Patent Application WO/2016/071475
Publication date: May 12, 2016 (in German)
Assignee: BASF SE

This patent application describes 3,3'-dimethoxy-4,4'-dihydroxy stilbenes for developing a vanillin aroma, especially under the effects of light.

According to the inventors, 3,3'-dimethoxy-4,4'-dihydroxy stilbene (I) surprisingly was found to exhibit a vanilla-like smell and advantageous sensory properties. Furthermore, its vanilla aroma intensified under artificial sunlight; contact time in the range of 1 min to 60 min was sufficient to achieve a marked intensification. Longer exposure times could significantly increase its vanilla-like odor.

In addition, the patent describes compositions containing the 3,3'-dimethoxy-4,4'-dihydroxy stilbenes and an additional carrier material; to fragrance compositions and/or an odorant materials that contain the aforementioned compound; and to a method for providing or changing the aroma of compositions by adding the aforementioned compound. Applications include detergents, fabric care products, detergents, fragrance-containing hygiene products, air fresheners and perfumes.

Finally, a method for obtaining 3,3'-dimethoxy-4,4'-dihydroxy stilbenes from lignin-containing compositions is also disclosed.

Patent application accessed May 12, 2016.

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