| 微晶纤维素超临界水解糖化的研究 |
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| 引用本文： | 巩桂芬,张明玉,邢立新,刘丹钰,黄玉东. 微晶纤维素超临界水解糖化的研究[J]. 现代化工, 2010, 30(2) |
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| 作者姓名： | 巩桂芬 张明玉 邢立新 刘丹钰 黄玉东 |
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| 作者单位： | 1. 哈尔滨工业大学,化工学院,黑龙江,哈尔滨150001
2. 哈尔滨理工大学,材料科学与工程学院,黑龙江,哈尔滨150004 |
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| 基金项目： | 黑龙江省自然科学基金，哈尔滨理工大学创新性实验计划项目 |
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| 摘 要： | 于420℃的盐浴温度下,在80 g水中分别加入1～5 g的微晶纤维素,进行了纤维素超临界水解产糖的研究.结果表明随着固液比的增大,还原糖和己糖含量均升高,但液化率下降,最大还原糖质量浓度为13.05 g/L,对应的己糖质量浓度为7.12 g/L,液化率50.6%,己糖产率为11.4%,电镜图片显示水解残渣的表面有大量的孔洞,同时形成了大量的球状颗粒.
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| 关 键 词： | 超临界水解 糖化 微晶纤维素 还原糖 己糖 |
Study on saccharification of microcrystalline cellulose hydrolysis in supercritical water |
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| GONG Gui-fen,ZHANG Ming-yu,XING Li-xin,LIU Dan-yu,HUANG Yu-dong. Study on saccharification of microcrystalline cellulose hydrolysis in supercritical water[J]. Modern Chemical Industry, 2010, 30(2) |
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| Authors: | GONG Gui-fen ZHANG Ming-yu XING Li-xin LIU Dan-yu HUANG Yu-dong |
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| Affiliation: | GONG Gui-fen1,ZHANG Ming-yu2,XING Li-xin2,LIU Dan-yu2,HUANG Yu-dong1(1.School of Chemical Engineering , Technology,Harbin Institute of Technology,Harbin 150001,China,2.College of Materials Science , Engineering,Harbin University of Science , Technology,Harbin 150004,China) |
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| Abstract: | By adding 1,2,3,4,5 g,respectively,of microcrystalline cellulose into 80 g of water in a 420℃ of salt bath,the supercritical hydrolysis of cellulose is studied.The results show that with the increase of solid-liquid ratio the reductive sugar and hexose contents are increased,but the liquefaction rate declined.The maximal concentration of reductive sugar is 13.05 g/L,corresponding to a hexose sugar concentration of 7.12 g/L,liquefaction rate of 50.6%,hexose yield of 11.4%.The electron microscopy images show that on the surface of the hydrolytic residue there are a large number of holes with the formation of many spherical particles. |
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| Keywords: | supercritical hydrolysis saccharification microcrystalline cellulose reductive sugars hexose |
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