Two-step hydrolysis of Japanese cedar as treated by semi-flow hot-compressed water
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Two-step hydrolysis of Japanese cedar (Cryptomeria japonica) was studied as treated by semi-flow hot-compressed water at 230°C/10 MPa for 15 min and 280°C/10 MPa for 30 min as the first and second stages, respectively. At the first stage, hemicelluloses and para-crystalline cellulose, whose crystalline structure is somewhat disordered, were found to be selectively hydrolyzed, as well as lignin decomposition, whereas crystalline cellulose occurred at the second stage. In all, 87.76% of Japanese cedar could be liquefied by hot-compressed water and was primarily recovered as various hydrolyzed products, dehydrated, fragmented, and isomerized compounds as well as organic acids in the water-soluble portion. The remainder, 12.24%, could not be hydrolyzed and remained as the water-insoluble residue composed entirely of lignin. Based on the distribution of various products from hemicelluloses in Japanese cedar, their decomposition pathways were proposed as independent.
収録刊行物
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- Journal of Wood Science
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Journal of Wood Science 56 (4), 331-338, 2010-08
Springer Verlag
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詳細情報 詳細情報について
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- CRID
- 1050564285647097472
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- NII論文ID
- 10026632181
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- NII書誌ID
- AA11200007
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- ISSN
- 14350211
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- HANDLE
- 2433/128911
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- NDL書誌ID
- 10785959
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- 本文言語コード
- en
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- 資料種別
- journal article
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- データソース種別
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- IRDB
- NDL
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