| 論文名 |
Acid-catalyzed conversion of mono- and poly-sugars into platform chemicals: effects of molecular structure of sugar substrate. |
| 著者 |
Xun Hu
Liping Wu
Yi Wang
Yao Song
Daniel Mourant
Richard Gunawan
Mortaza Gholizadeh
Chun-Zhu Li
|
| キーワード |
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| 出版年月 |
1970年1月 |
| 発表先 |
Bioresour Technol. 2013 Apr;133:469-74. |
| WEBサイト |
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| 論文概要（和文） |
モノ糖およびポリ糖のプラットフォーム化学物質への酸触媒変換：糖基質の分子構造の影響。 |
| 論文概要（英文） |
Hydrolysis/pyrolysis of lignocellulosic biomass always produces a mixture of sugars with distinct structures as intermediates or products. This study tried to elucidate the effects of molecular structure of sugars on their acid-catalyzed conversions in ethanol/water. Location of carbonyl group in sugars (fructose versus glucose) and steric configuration of hydroxyl groups (glucose versus galactose) significantly affected yields of levulinic acid/ester (fructose>glucose>galactose). The dehydration of fructose to 5-(hydroxymethyl)furfural produces much less soluble polymer than that from glucose and galactose, which results in high yields of levulinic acid/ester from fructose. Anhydrate sugar such as levoglucosan tends to undergo the undesirable decomposition to form less levulinic acid/ester. Catalytic behaviors of the poly-sugars (sucrose, maltose, raffinose, β-cyclodextrins) were determined much by their basic units. However, their big molecular sizes create the steric hindrance that significantly affects their followed conversion over solid acid catalyst. |
