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Official Journal of the Japan Wood Research Society

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Characteristic Raman bands for Artocarpus heterophyllus heartwood

Abstract

The Raman spectrum of Artocarpus heterophyllus heartwood, which proved to be a rich source of flavonoids, exhibited two characteristic bands, at 1247 cm−1 and 745 cm−1. The bands also appeared in the Raman spectrum of the yellow-brown needles extracted from the heartwood with methanol. Based on the Raman measurements of flavones and related compounds, it was predicted that the Raman band at 1247 cm−1 may be attributed to flavonoid-type compounds. No vibrational band corresponding to the characteristic Raman bands was observed by diffuse reflectance infrared spectroscopy. Thus, it was suggested that observation of the characteristic bands is an advantage of Fourier transform-Raman spectroscopy for nondestructive analysis of wood.

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Correspondence to Shigeru Yamauchi.

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Yamauchi, S., Shibutani, S. & Doi, S. Characteristic Raman bands for Artocarpus heterophyllus heartwood. J Wood Sci 49, 466–468 (2003). https://doi.org/10.1007/s10086-002-0498-2

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Key words

  • Raman spectroscopy
  • Artocarpus heterophyllus
  • Flavonoid
  • Infrared spectroscopy
  • Nangka