| 李 洲,王高升,王 霞,肖 林,夏蕊蕊.亚硫酸氢盐在SPORL法预处理稻草中的作用[J].中国造纸学报,2014,29(4):1-6 |
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| 亚硫酸氢盐在SPORL法预处理稻草中的作用 |
| Investigation on the Role of Bisulfite in Rice Straw Pretreatment with SPORL Process |
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| DOI：10.11981/j.issn.1000-6842.2014.04.1 |
| 中文关键词: 亚硫酸氢盐 SPORL法 稻草 预处理 酶水解 |
| Key Words:bisulfite SPORL rice straw pretreatment enzymatic hydrolysis |
| 基金项目:本课题得到国家高技术研究发展计划（863计划）2014AA021903及天津市高等学校科技发展基金（20080522）的资助。 |
| 作者 | 单位 | | 李 洲1 | 1.天津科技大学天津市制浆造纸重点实验室,天津,300457 | | 王高升1,* | 1.天津科技大学天津市制浆造纸重点实验室,天津,300457 | | 王 霞1 | 1.天津科技大学天津市制浆造纸重点实验室,天津,300457 | | 肖 林2 | 2. 山东龙力生物科技股份有限公司,山东省秸秆生物炼制技术重点实验室,山东德州,251200 | | 夏蕊蕊2 | 2. 山东龙力生物科技股份有限公司,山东省秸秆生物炼制技术重点实验室,山东德州,251200 |
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| 中文摘要: |
| 为了提高稻草的酶水解葡萄糖得率,研究了SPORL法预处理对稻草主要成分含量的影响及主要成分的保留与纤维素酶水解效率的关系。结果表明,在SPORL法预处理过程中,亚硫酸氢盐对稻草的木素、纤维素、半纤维素和灰分均有影响,增加亚硫酸氢盐用量能够促进木素脱除和半纤维素水解,从而破除纤维素酶与纤维素接触的空间障碍,促进预处理稻草酶水解；增加亚硫酸氢盐用量还有利于提高预处理稻草纤维素保留率。木素的溶出与预处理稻草酶水解效率呈较好的正相关关系,这是SPORL法预处理与稀酸法的不同之处。 |
| Abstract: |
| In order to improve glucose yield converted from rice straw, effect of bisulfite pretreatment on chemical components of feedstocks, and correlation between the efficient of enzymatic hydrolysis and the remained chemical components were studied in the paper. The results showed that bisulfite had effects on lignin, cellulose, hemicellulose and ash content of rice straw in SPORL (Sulfite Protreatment to Overcome Recalcitrance of Lignocellulose) process. Bisulfite could promote the removal of lignin and hemicellulose hydrolysis, kept cellulose from degradation. Enzymatic hydrolysis of substrates was enhanced with increasing the amount of bisulfite. There was positive linear correlation between the removal of lignin and enzymatic hydrolysis efficiency of substrate in SPORL pretreatment process. This was the difference between SPORL and dilute acid process． |
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