| Preparation of Highly Crystalline Microcrystalline Cellulose by Hydrolysis of Cellulose with Phosphotungstic Acid |
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| Author Name | Affiliation | | Jing Wang1 | 1. College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi’an, Shaanxi Province, 710021, China | | JinBao Li1,* | 1. College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi’an, Shaanxi Province, 710021, China | | MeiYun Zhang1,2 | 1. College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi’an, Shaanxi Province, 710021, China
2. State Key Laboratory of Donghua University, Donghua University, Shanghai, 200051, China | | ShunXi Song1 | 1. College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi’an, Shaanxi Province, 710021, China | | DanDan Qiang1 | 1. College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi’an, Shaanxi Province, 710021, China |
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| Fund Project:This work was supported by the National Key Research and Development Program of China (2017YFB0307900), the Key Research and Development Project of Shaanxi Province (2017ZDXM-SF-090) and the State Key Laboratory of Donghua University (NO. LK1601). |
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| Abstract:Phosphotungstic acid (H3PW12O40, HPW), a kind of solid acid, is widely used for hydrolyzing cellulose to prepare microcrystalline cellulose (MCC). MCC is usually used in food, synthetic leather, chemical and pharmaceutical industries. The use of response surface methodology (RSM) can help avoid the random error caused by single factor experimental design, reduce test times and cost, and improve quality. The RSM was used in this study to determine the following optimal process conditions: H+ molar quantity, 31 mmol/L; reaction temperature, 93℃; reaction time, 2 h; and solid to liquid ratio, 1∶38. Under these conditions, the crystallinity of MCC was 77.4%. Thus, the use of RSM allows the preparation of MCC with higher performance and increased crystallinity. |
| keywords:cellulose hydrolysis phosphotungstic acid response surface microcrystalline cellulose crystallinity |
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