Imitation vanilla extract is usually made by soaking alcohol into wood, which contains vanillin. Vanillin is chemically treated to mimic the taste of vanilla. Most imitation vanillas contain vanillin, only one of 171 identified aromatic components of the real vanilla beans. Vanillin can be produced synthetically from lignin. Most synthetic vanillin is a byproduct of the pulp and paper industry, and is made from waste sulfate, which contains lignin-sulfonic acid.
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