Isolation and characterization of wood components with aqueous acetic acid
A study was conducted on the isolation of poplar （Populusxeurarnaricana （Dode） Guineir cv. I -72/58） wood components with aqueous acetic acid （AcOH） containing small amounts of sulfuric acid. The reaction time, concentration of acetic acid, ratio of liquor to wood, and concentration of acid catalyst...
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| Veröffentlicht in: | Journal of forestry research 2006-03, Vol.17 (1), p.62-64 |
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| creator | Li, Gai-yun Qin, Te-fu |
| description | A study was conducted on the isolation of poplar （Populusxeurarnaricana （Dode） Guineir cv. I -72/58） wood components with aqueous acetic acid （AcOH） containing small amounts of sulfuric acid. The reaction time, concentration of acetic acid, ratio of liquor to wood, and concentration of acid catalyst were investigated to examine their effects on the fractionation of wood components. The three main separated components were characterized. The results showed that the optimum conditions for fractionation of poplar wood components were： 0.3% H2SO4 in reaction solution, ratio of liquor to wood 6, reflux time 3 h, and 90% AcOH. The residues were mainly composed of a-Cellulose and hemicellulose, The water insoluble precipitate （acetic acid lignin, AcL） had a low weight-average molecular weight range from 341 to 253 （Mw） and a narrow molecular weight distribution from 1.1 to 1.2. The sugar analysis revealed the solubilized products resulted mainly from hemicellulose and exited as monosaccharides. |
| doi_str_mv | 10.1007/s11676-006-0015-3 |
| format | Article |
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I -72/58） wood components with aqueous acetic acid （AcOH） containing small amounts of sulfuric acid. The reaction time, concentration of acetic acid, ratio of liquor to wood, and concentration of acid catalyst were investigated to examine their effects on the fractionation of wood components. The three main separated components were characterized. The results showed that the optimum conditions for fractionation of poplar wood components were： 0.3% H2SO4 in reaction solution, ratio of liquor to wood 6, reflux time 3 h, and 90% AcOH. The residues were mainly composed of a-Cellulose and hemicellulose, The water insoluble precipitate （acetic acid lignin, AcL） had a low weight-average molecular weight range from 341 to 253 （Mw） and a narrow molecular weight distribution from 1.1 to 1.2. The sugar analysis revealed the solubilized products resulted mainly from hemicellulose and exited as monosaccharides.</description><identifier>ISSN: 1007-662X</identifier><identifier>EISSN: 1993-0607</identifier><identifier>DOI: 10.1007/s11676-006-0015-3</identifier><language>eng</language><publisher>Heidelberg: Springer Nature B.V</publisher><subject>Acetic acid ; Catalysts ; Cellulose ; Forestry ; Fractionation ; Hardwoods ; Hemicellulose ; Molecular weight ; Molecular weight distribution ; Monosaccharides ; Poplar ; Reaction time ; Sulfuric acid ; 水成法 ; 硫磺酸 ; 组分分离</subject><ispartof>Journal of forestry research, 2006-03, Vol.17 (1), p.62-64</ispartof><rights>Northeast Forestry University and Ecological Society 2006.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c972-4cafa9f2096d257fed2ad32b2435c36df9d61726c4828a5cc8bf6b43bc85098d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://image.cqvip.com/vip1000/qk/85224X/85224X.jpg</thumbnail><link.rule.ids>314,778,782,27911,27912</link.rule.ids></links><search><creatorcontrib>Li, Gai-yun</creatorcontrib><creatorcontrib>Qin, Te-fu</creatorcontrib><title>Isolation and characterization of wood components with aqueous acetic acid</title><title>Journal of forestry research</title><addtitle>Journal of Forestry Research</addtitle><description>A study was conducted on the isolation of poplar （Populusxeurarnaricana （Dode） Guineir cv. I -72/58） wood components with aqueous acetic acid （AcOH） containing small amounts of sulfuric acid. The reaction time, concentration of acetic acid, ratio of liquor to wood, and concentration of acid catalyst were investigated to examine their effects on the fractionation of wood components. The three main separated components were characterized. The results showed that the optimum conditions for fractionation of poplar wood components were： 0.3% H2SO4 in reaction solution, ratio of liquor to wood 6, reflux time 3 h, and 90% AcOH. The residues were mainly composed of a-Cellulose and hemicellulose, The water insoluble precipitate （acetic acid lignin, AcL） had a low weight-average molecular weight range from 341 to 253 （Mw） and a narrow molecular weight distribution from 1.1 to 1.2. The sugar analysis revealed the solubilized products resulted mainly from hemicellulose and exited as monosaccharides.</description><subject>Acetic acid</subject><subject>Catalysts</subject><subject>Cellulose</subject><subject>Forestry</subject><subject>Fractionation</subject><subject>Hardwoods</subject><subject>Hemicellulose</subject><subject>Molecular weight</subject><subject>Molecular weight distribution</subject><subject>Monosaccharides</subject><subject>Poplar</subject><subject>Reaction time</subject><subject>Sulfuric acid</subject><subject>水成法</subject><subject>硫磺酸</subject><subject>组分分离</subject><issn>1007-662X</issn><issn>1993-0607</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNotkMlOwzAQhi0EEqXwANwiOBu8Jz6iiqWoEpceuFmOl9aljVs7UQVPj6v0MPpHM_8s-gC4x-gJI1Q_Z4xFLSBCp8Ac0gswwVJSiASqL0teTFAI8n0NbnLeIMQZpWwCPuc5bnUfYlfpzlZmrZM2vUvhbyxGXx1jLI2428fOdX2ujqFfV_owuDjkShvXB1Mk2Ftw5fU2u7uzTsHy7XU5-4CLr_f57GUBjawJZEZ7LT1BUljCa-8s0ZaSljDKDRXWSytwTYRhDWk0N6ZpvWgZbU3DkWwsnYLHce0-xfJE7tUmDqkrFxURgrG64YwUFx5dJsWck_Nqn8JOp1-FkTrBUCMxVYipEzFFy8zDeWYdu9UhdCvVavPjw9YpghlmXFL6D2LtajQ</recordid><startdate>200603</startdate><enddate>200603</enddate><creator>Li, Gai-yun</creator><creator>Qin, Te-fu</creator><general>Springer Nature B.V</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>W95</scope><scope>~WA</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>200603</creationdate><title>Isolation and characterization of wood components with aqueous acetic acid</title><author>Li, Gai-yun ; Qin, Te-fu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c972-4cafa9f2096d257fed2ad32b2435c36df9d61726c4828a5cc8bf6b43bc85098d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Acetic acid</topic><topic>Catalysts</topic><topic>Cellulose</topic><topic>Forestry</topic><topic>Fractionation</topic><topic>Hardwoods</topic><topic>Hemicellulose</topic><topic>Molecular weight</topic><topic>Molecular weight distribution</topic><topic>Monosaccharides</topic><topic>Poplar</topic><topic>Reaction time</topic><topic>Sulfuric acid</topic><topic>水成法</topic><topic>硫磺酸</topic><topic>组分分离</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Li, Gai-yun</creatorcontrib><creatorcontrib>Qin, Te-fu</creatorcontrib><collection>中文科技期刊数据库</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>中文科技期刊数据库-7.0平台</collection><collection>中文科技期刊数据库-农业科学</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>CrossRef</collection><jtitle>Journal of forestry research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Li, Gai-yun</au><au>Qin, Te-fu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Isolation and characterization of wood components with aqueous acetic acid</atitle><jtitle>Journal of forestry research</jtitle><addtitle>Journal of Forestry Research</addtitle><date>2006-03</date><risdate>2006</risdate><volume>17</volume><issue>1</issue><spage>62</spage><epage>64</epage><pages>62-64</pages><issn>1007-662X</issn><eissn>1993-0607</eissn><abstract>A study was conducted on the isolation of poplar （Populusxeurarnaricana （Dode） Guineir cv. I -72/58） wood components with aqueous acetic acid （AcOH） containing small amounts of sulfuric acid. The reaction time, concentration of acetic acid, ratio of liquor to wood, and concentration of acid catalyst were investigated to examine their effects on the fractionation of wood components. The three main separated components were characterized. The results showed that the optimum conditions for fractionation of poplar wood components were： 0.3% H2SO4 in reaction solution, ratio of liquor to wood 6, reflux time 3 h, and 90% AcOH. The residues were mainly composed of a-Cellulose and hemicellulose, The water insoluble precipitate （acetic acid lignin, AcL） had a low weight-average molecular weight range from 341 to 253 （Mw） and a narrow molecular weight distribution from 1.1 to 1.2. 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| ispartof | Journal of forestry research, 2006-03, Vol.17 (1), p.62-64 |
| issn | 1007-662X 1993-0607 |
| language | eng |
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| source | Springer Nature - Complete Springer Journals; Alma/SFX Local Collection |
| subjects | Acetic acid Catalysts Cellulose Forestry Fractionation Hardwoods Hemicellulose Molecular weight Molecular weight distribution Monosaccharides Poplar Reaction time Sulfuric acid 水成法 硫磺酸 组分分离 |
| title | Isolation and characterization of wood components with aqueous acetic acid |
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