Raman spectroscopic characterization of Japanese cedar wood heat-treated at low temperatures
スポンサーリンク
概要
- 論文の詳細を見る
Raman spectra of Japanese cedar (Cryptomeria japonica) sapwood and heartwood heated at low temperatures (50-160℃) were recorded, and spectral changes of Raman bands due to heat treatment were analyzed through a difference spectrum method. Although the heat treatment intensified fluorescence emitted from heartwood much more strongly than that from sapwood, there was no significant difference in vibrational Raman band contours between sapwood and heartwood. The Raman spectral changes associated with heat treatment of Japanese cedar were quite similar to those of Japanese larch (Larix leptolepis). The most characteristic and important spectral change was a decrease in intensity of the Raman band at 1655 cm^[-1], which can be attributed mainly to stretching vibrations of C=C and C=O groups in lignin molecules. The intensity at 1655 cm^[-1] decreased with increasing heat-treatment temperature and time, and the decrease rate had a strong dependence on water content.
- Hokkaido University Forests, EFRCの論文
Hokkaido University Forests, EFRC | 論文
- Growth and Photosynthetic Performance of Seedlings of Two Larch Species Grown in Shaded Conditions
- Micro-Environmental Analysis of the Natural Regeneration of Larch Forests in Northern Japan
- Problems in the Maintenance and Sustainable Use of Forest Resources in Priamurye in the Russian Far East
- Dynamics and Management of Forests with Multiple Constraints in Spain
- Records of Sorex species (Soricidae, Mammalia) from Mt. Paektu, North Korea, with the First Record of S. daphaenodon