ESSENTIAL OIL OF JAPANESE CEDAR AND JAPANESE CYPRESS AND PRODUCTION THEREOF

摘要

PURPOSE:To carry out detoxifying treatment and simultaneously obtain an antimicrobial essential oil by subjecting chopped substances of Japanese cedar and Japanese cypress to blasting treatment under specific conditions and separating the essential oil from the generated gases and produced oils. CONSTITUTION:Tree bark, woody parts, leaf parts, etc., of Japanese cedar and Japanese cypress alone or mixtures thereof are chopped to a prescribed size, placed in a hermetically sealed container and subjected to blasting treatment at a high temperature under a high pressure of saturated steam. Generated gases in the blasting are cooled with a condenser to recover a liquid, which is then subjected to steam distillation to separate an essential oil component. Liquids produced in the blasting are subjected to the steam distillation to separate the objective essential oil ingredient.