Vanilla pulp used in papermaking, in which the lignin is broken down using sulfites or sulfates. However, vanillin is only one of 171 identified aromatic components of real vanilla fruits. The orchid species "Leptotes bicolor" is used as a natural vanilla replacement in Paraguay and southern Brazil. In 1996 the US Food and Drug Administration cautioned that some vanilla products sold in Mexico were made from the cheaper tonka bean which as well as vanillin also contains the toxin coumarin. They advised consumers to always check the ingredients label and avoid suspicously cheap products. In the United States, castoreum, the exudate
Hubert Tonka Hubert Tonka Hubert Tonka (born 1943) is a French sociologist and urban planner who edited the "Utopie" magazine, and was one of the leaders of the "Utopie" movement in the late 1960s and early 1970s. For family reasons, Tonka had to start work at a very young age. In Paris around 1960 he was taking night classes for a diploma in urban planning while working in the day, where he met other members of what would become the "Utopie" group. He worked as a plasterer in the day. He became the assistant of Henri Lefebvre, who was a professor at