Tonka bean oil Tonka bean oil Tonka bean oil is extracted from the seed of "Dipteryx odorata". The oil is composed primarily of coumarin, which is used to flavor tobacco. It is neither a pressed oil, nor an essential oil, but was traditionally obtained by soaking the large, single tonka bean seed in rum or other alcohol for 24 hours, after which crystals of coumarin appear on the outside of the seed, and are then collected. The seeds contain up to 46% oil by dry weight. In recent years, most commercially produced coumarin are synthetic, which has reduced the demand for tonka beans
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