2002 Fiscal Year Final Research Report Summary
Development of New Pulping Process for Agricultural Wastes and Annual Plants to Use Waste Liquor as Fertilizer
| Project/Area Number |
13556023
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 展開研究 |
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| Research Field |
林産学
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| Research Institution | THE UNIVERSITY OF TOKYO |
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Principal Investigator |
IIYAMA Kenji THE UNIVERSITY OF TOKYO, The University of Tokyo Asian Natural Environmental Science Center, Professor (60012077)
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| Co-Investigator(Kenkyū-buntansha) |
MATSUMOTO Yuji 東京大学, Graduate School of Agricultural and Life Sciences, Associate Professor (30183619)
OHOI Hiroshi University of Tsukuba, Graduate School of Life and Environmental Sciences, Lecturer (20201965)
ENOMAE Toshiharu 東京大学, Graduate School of Agricultural and Life Sciences, Assistant (40203640)
SHINNTANI Hiroyuki 東京大学, Graduate School of Agricultural and Life Sciences, Assistant (30282693)
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| Project Period (FY) |
2001 – 2002
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| Keywords | Rice straw / Kenaf / Ammonia-KOH pulping / Degree of polymerization of cellulose / Delignification rate / Steam explosion / Fertilizer from waste liquor / Growth of plant |
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| Research Abstract |
Rice straw would be easily modified by ammonia because wall polymers are associated by hydroxycinnamic acids through ether and ester bridges. Then aqueous NH_3 solution was selected as pulping liquor to develop new pulping system of rice straw. Waste liquor from conventional pulping of grasses using NaOH contains significant amount of NaSiO_2 originated from silica in grasses together with lignin, carbohydrates and NaOH. It is really difficult to treat waste liquor. New pulping process uses NH_3, waste liquor contains NH_3 together with lignin and carbohydrates. When small amount of KOH were used together with NH_3 as pulping liquor to promote pulping, the waste liquor should contain potassium, and enough properties of pulp for paper making. The waste liquor was applied as a fertilizer for maize and rice cultivations. Growth of plants was considerably promoted by the application of the waste liquor.
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Research Products
(18 results)
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[Journal Article] Biological resources in village life.2003
Author(s)
liyama, K.
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Journal Title
Satoyama. The Traditional Rural Landscape of Japan. (Takeuchi,K., Brown,R.D., Washitani,I., Tsunekawa, A. and Yokohari, M. eds. Springer, Tokyo.)
Pages: 149-172
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Changes in lignin content of leaf litters during mulching2003
Author(s)
Jin,Z., Akiyama,T., Chung,B.Y., Matsumoto,Y., liyama,K., Watanabe,S.
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Journal Title
Phytochemistry 49(In press)
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Biological resources in village life.2003
Author(s)
Iiyama, K.
-
Journal Title
Satoyama. The Traditional Rural Landscape of Japan. (Takeuchi, K., Brown, R.D., Washitani, I., Tsunekawa, A. and Yokohari, M. eds.).(Springer, Tokyo.)
Pages: 149-172
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Decomposition of (1-3,1-4)-β-glucan and expression of the (1-3,1-4)-β-glucanasegene in rice stems during ripening.2001
Author(s)
Baba,Y, Ishida,Y., Oda,M., Iiyama,K., Akita,S.
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Journal Title
Plant Prod. Sci. 4
Pages: 230-234
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Decomposition of (1-3,1-4)-β-glucan and expression of the (1-3,1-4)-β-glucanase gene in rice stems during ripening.2001
Author(s)
Baba, Y., Ishida, Y., Oda, M., Iiyama, K., Akita, S.
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Journal Title
Plant Prod.Sci. 4
Pages: 230-234
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Changes in lignin content of leaf litters during mulching
Author(s)
Jin, Z., Akiyama, T., Chung, B.Y., Matsumoto, Y., Iiyama, K., Watanabe, S.
-
Journal Title
Phytochemistry 49(in press)
Description
「研究成果報告書概要(欧文)」より
