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| 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 |
| Key Words:bisulfite；SPORL；rice straw；pretreatment；enzymatic hydrolysis |
| Fund Project: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。 |
| Author Name | Affiliation | | 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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| 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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