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Journal of Wood Science

Official Journal of the Japan Wood Research Society

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Manufacture of wood-cement boards VIII: cement-hardening inhibitory compounds of keyaki (Japanese zelkova, Zelkova serrata)

Journal of Wood Science volume 49, pages 281–284 (2003)Cite this article

Abstract

 To isolate and identify the cement-hardening inhibitory components of keyaki (Japanese zelkova, Zelkova serrata Makino), methanol extractives containing inhibitory components were fractionated by successive organic solvent extraction and column chromatography, and the inhibition of these fractions was determined. Spectroscopic analysis of one isolated compound identified it to be keyakinin with the C-glucoside structure of a flavonol. According to the inhibitory indices, the compound was found to be the main cement-hardening inhibitory component of keyaki. Extraction of keyaki with hot water or a blend of keyaki with up to 30% hinoki as a suitable species diminished the cement-hardening inhibition of wood-cement board to a great extent, suggesting that such treatments are economical countermeasures to this inhibition.

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Authors and Affiliations

  1. Division of Biological Materials Sciences, Department of Biosphere Resources Science, Graduate School of Bioagricultural Sciences, Nagoya University, 464-8601, Nagoya, Japan

    Yasuyuki Matsushita, Shigeru Miyawaki & Seiichi Yasuda

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  1. Yasuyuki Matsushita
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  2. Shigeru Miyawaki
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  3. Seiichi Yasuda
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Received: April 17, 2002 / Accepted: June 24, 2002

Acknowledgments The authors thank Dr. W. Nagadomi, Nichiha Co., for providing Japanese zelkova wood. This research was conducted with the support of the TOSTEM Foundation for Construction Materials Industry Promotion.

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Matsushita, Y., Miyawaki, S. & Yasuda, S. Manufacture of wood-cement boards VIII: cement-hardening inhibitory compounds of keyaki (Japanese zelkova, Zelkova serrata). J Wood Sci 49, 281–284 (2003). https://doi.org/10.1007/s10086-002-0460-3

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  • DOI: https://doi.org/10.1007/s10086-002-0460-3