| Budget Amount *help |
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2014: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2013: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2012: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
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| Outline of Final Research Achievements |
Cryptomeria japonica is a major species for afforestation. On the other hand, effective use of unused resources such as branches and leaves, and scrap wood associated with manufacturing, which occur in the production process of C. japonica lumber, becomes an important issue. The aim of this study was to find out new functionality of essential oils from branches and leaves and wood of C. japonica. We prepared the essential oils from branches and leaves and wood. The main components were monoterpenes and sesquiterpenes, respectively. In addition, we investigated the effects of the essential oils on physiological and psychological responses in humans. We demonstrated that each essential oil has different effects on the physiological and psychological responses. This study suggested that qualitative and quantitative differences in volatiles in presented air contribute to differences in the physiological and psychological responses.
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