1 ソノリシスによるセルロース溶液からのオリゴ糖生成
書誌事項
- タイトル別名
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- 1 Ultrasonic degradation of cellulose solutions and production of oligo-cellulose
抄録
Ultrasonic degradation of cellulose is expected to give oligomers, which are valuable reagents in the biological field. In this work, we examine the ultrasonic degradation of cellulose in solutions and discuss the production of the oligo-cellulose. Cellulose (Avicel-PH101) was dissolved in lithium chloride (LiCl)/dimethylacetamide (DMAc) solvent. The concentration of LiCl was 8wt%. The ultrasonic homogenizer (BRANSON SONIFIER 450D) was used and its working frequency was 20kHz. Sonication was carried out at 25℃. The viscosity-averaged molecular (M_v) weight was estimated for the cellulose after the sonication. The M_v value of the sonicated sample deceased from 2×10^5 with increasing the ultrasonic intensity to around 1×10^5. The ethanol was added to the sonicated solutions as the precipitating agent and the precipitation was filtered and dried. After that it was dissolved in water and was fractionated into the water-insoluble component and soluble one. The water-soluble component was characterized by the GPC measurements and ^1H NMR spectroscopy. From the GPC and ^1H NMR analysis, the production of the oligo-cellulose was suggested.
収録刊行物
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- ソノケミストリー討論会講演論文集
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ソノケミストリー討論会講演論文集 11 (0), 5-7, 2002
日本ソノケミストリー学会
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詳細情報 詳細情報について
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- CRID
- 1390001206051138944
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- NII論文ID
- 110009710174
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- ISSN
- 24241512
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可