Thujone Content of Four Plant Species ('03)

Kathy VanWormer

Thujone was extracted and analyzed from four plant species using soxhlet extraction and GCMS.  It was found that out of the four plants, dried western cedar tips had the most thujone than the others by more than a a factor of 20.  Cedar had 5320 mg thujone/kg dried weight , wormwood had 239 mg/kg and thyme had 71 mg/kg.