Individual variations in monoterpenes released from Cryptomeria japonica and Pinus thunbergii needles |
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Authors: | Sadanobu Katoh Tohru Furukawa Akinori Mizuguchi Takeshi Furuno |
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Institution: | (1) Faculty of Science and Engineering, Shimane University, Matsue 690-8504, Japan |
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Abstract: | Variations in the compositions of low boiling point (LBP) monoterpenes in needle samples from 99 sugi (Cryptomeria japonica) and 100 kuromatsu (Pinus thunbergii) trees were investigated using a headspace technique. Considerable variations in the proportions of monoterpenes were revealed
in both species. In sugi, the proportions of sabinene and α-pinene in the total LBP monoterpenes, ranging from 8.8% to 73.3% and from 14.5% to 73.3%, respectively, showed enormous variations
among nine monoterpenes. The proportions of 3-carene and limonene, ranging from 0.1% to 29.5% and from 0.2% to 20.4%, respectively,
also showed very specific variations. In kuromatsu, the proportions of β-pinene and α-pinene in the total LBP monoterpenes, ranging from 26.5% to 66.3% and from 18.7% to 46.9%, respectively, showed considerable
variations among ten monoterpenes. The proportions of myrcene and 1,8-cineole, ranging from 0.9% to 18.5% and from 0.8% to
12.3%, respectively, also showed specific variations.
Part of this article was presented at the 50th Annual Meeting of the Japan Wood Research Society, Kyoto, April, 2000, and
the 13th Annual Meeting of the Chugoku Shikoku Branch of the Japan Wood Research Society, Okayama, September 2001 |
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Keywords: | Cryptomeria japonica Pinus thunbergii Monoterpenes Sabinene β -Pinene |
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