Chemical structures and thermochemical properties of bagasse lignin

Chemical structures and thermochemical properties of bagasse lignin
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甘蔗渣木质素的化学结构和热化学性质

DOI:
10.1007/s11632-006-0021-8
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发表时间:
2006-09
期刊:
Forestry Studies in China
影响因子:
--
通讯作者:
--
中科院分区:
其他
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利用31p - nmr和DFRC定量分析了甘蔗渣EMAL(酶解/轻度酸解木质素)的化学结构。用热重法评价了甘蔗渣及其EMAL的热化学特性。结果表明,甘蔗渣EMAL主要由愈创木酚基和丁香基的酚羟基形成。甘蔗渣EMAL中DBDO含量为0.180 mmol·g−1。甘蔗渣EMAL在高温下的分解特性与甘蔗渣有很大不同。
The ehemical structures of bagasse EMAL (enzymatie hydrolysis/mild acidolysis lignin) were revealed quantitatively with31P-NMR, DFRC (derivatization followed by reductive cleavage). The thermochemical characteristics of bagasse and bagasse EMAL were evaluated with thermogravimetry. The results show that bagasse EMAL is mainly formed by the phenolic hydroxyl group of guaiacyl and syringyl units. The DBDO content in bagasse EMAL was found to be 0.180 mmol·g−1. The decomposition characteristies of bagasse EMAL under elevated temperature were much different from that of bagasse.
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发表时间: 1997-07-01
影响因子: 6.1
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发表时间: 1995-06-01
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DOI: --
发表时间: 2003
影响因子: --
作者:
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影响因子: 2
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