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| Study on Xylose Dissolution from Wheat Straw in Sulfuric Acid Hydrolysis |
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| DOI：10.11980/j.issn.0254-508X.2017.04.007 |
| Key Words:wheat straw acid hydrolysis xylose |
| Fund Project:国家自然科学基金（31400511、31670590和31670595）；山东省科技发展计划（2014GNC113002）。 |
| Author Name | Affiliation | | 马 浩1 | 1.齐鲁工业大学制浆造纸科学与技术教育部重点实验室,山东济南,250353 | | 吉兴香1,2,3,* | 1.齐鲁工业大学制浆造纸科学与技术教育部重点实验室,山东济南,250353；2.中国林业科学研究院林产化学工业研究所,江苏南京,210042；3.华南理工大学制浆造纸工程国家重点实验室,广东广州,510640 | | 田中建1,4 | 1.齐鲁工业大学制浆造纸科学与技术教育部重点实验室,山东济南,250353；4.广西大学,广西南宁,530004 | | 房桂干2 | 2.中国林业科学研究院林产化学工业研究所,江苏南京,210042 | | 陈嘉川1 | 1.齐鲁工业大学制浆造纸科学与技术教育部重点实验室,山东济南,250353 | | 杨桂花1 | 1.齐鲁工业大学制浆造纸科学与技术教育部重点实验室,山东济南,250353 |
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| Abstract:The xylose dissolution of wheat straw in sulfuric acid hydrolysis were explored under different conditions, which demonstrated that when hydrolysis was carried out at 120℃ for 60 min, with sulfuric acid concentration of 4%, the xylose extraction efficiency of wheat straw reached the maximum amount of 0.20 g/g. Moreover, xylose dissolution process could be divided into three stages along with the increase of hydrolysis reaction strength. X-Ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FT-IR) and Environmental Scanning Electron Microscopy (ESEM) analyses confirmed that sulfuric acid concentration and temperature were the main factors to damage wheat straw fiber crystallization area. When the xylose extraction efficiency was maximized, hemicellulose was almost completely degraded and dissolved. |
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