📜Alkaline Earth Salt Of/the/ Methylsulfuric Acid置于甲醇,Sodium Methylate体系中,化学反应生成纤维六糖 参考文献:The Polymer-Homologous Series Of Oligosaccharides From Cellulose1 标题:The Polymer-Homologous Series Of Oligosaccharides From Cellulose1 摘要: Doi:10.1021/ja01141A032
参考标题:Enzymatic Synthesis Of Cellulose Ii-Like Substance Via Cellulolytic Enzyme-Mediated Transglycosylation In An Aqueous Medium 作者:Takeshi Hattori,Makoto Ogata,Yumiko Kameshima,Kazuhide Totani,Mitsuru Nikaido,Takashi Nakamura,Hiroyuki Koshino,Taichi Usui |发布日期:2012.5 摘要:The Enzymatic Synthesis Of Cellulose-Like Substance Via A Non-Biosynthetic Pathway Has Been Achieved By Transglycosylation In An Aqueous System Of The Corresponding Substrate, Cellotriose For Cellulolytic Enzyme Endo-Acting Endoglucanase I (Eg I) From Hypocrea Jecorina. A Significant Amount Of Water-Insoluble Product Precipitated Out From The Reaction System. Maldi-Tof Mass Analysis Showed That The Resulting Precipitate Had A Degree Of Polymerization (Dp) Of Up To 16 From Cellotriose. Solid-State C-13 Nmr Spectrum Of The Resulting Water-Insoluble Product Revealed That All Carbon Resonance Lines Were Assigned To Two Kinds Of Anhydroglucose Residues In The Corresponding Structure Of Cellulose Ii. X-Ray Diffraction (Xrd) Measurement As Well As C-13 Nmr Analysis Showed That The Crystal Structure Corresponds To Cellulose Ii With A High Degree Of Crystallinity. We Propose The Multiple Oligomers Form Highly Crystalline Cellulose Ii As A Result Of Self-Assembly Via Oligomer-Oligomer Interaction When They Precipitate. Crown Copyright (C) 2012 Published By Elsevier Ltd. All Rights Reserved.
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参考文献:10.1016/j.bmc.2011.04.048 摘要:Noguchi S, Takemoto S, Kidokoro S, Yamamoto K, Hashimoto M. Syntheses of cellotriose and cellotetraose analogues as transition state mimics for mechanistic studies of cellulases. Bioorg Med Chem. 2011 Jun 15;19(12):3812–30. doi: 10.1016/j.bmc.2011.04.048.