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| 红麻秸秆发酵转化燃料乙醇 | |
| 引用本文： | 阮奇城,祁建民,胡开辉,曹秀华,林国荣,王典. 红麻秸秆发酵转化燃料乙醇[J]. 福建农林大学学报(自然科学版), 2012, 41(1): 78-82 |
| 作者姓名： | 阮奇城 祁建民 胡开辉 曹秀华 林国荣 王典 |
| 作者单位： | 1. 福建农林大学教育部作物遗传育种与综合利用重点实验室,福建福州350002;福建农林大学能源植物研究中心,福建福州350002 2. 福建农林大学能源植物研究中心,福建福州,350002 3. 福建农林大学教育部作物遗传育种与综合利用重点实验室,福建福州,350002 4. 福建省曲斗香酒业有限公司,福建泉州,362400 |
| 基金项目： | 现代农业产业技术体系建设专项资金项目(nycytx-19-E05);泉州市科技重大项目(2008ZD12-6) |
| 摘 要： | 红麻秸秆含纤维素42.31%、半纤维素22.58%、木质素23.79%.分别采用热水和3%硫酸、1.5%烧碱溶液对红麻秸秆进行预处理(121℃,60 min),通过纤维素酶催化水解,红麻秸秆平均纤维素转化率分别达到12.23%、25.62%和85.34%,说明碱性预处理比较适合.以10 g碱处理红麻秸秆样品为底物的同步糖化发酵试验表明,当发酵168 h后,乙醇浓度达到26.06 mg.mL-1,乙醇产率达到理论产率的76.71%. |
| 关 键 词： | 红麻秸秆 预处理 纤维素酶 燃料乙醇 同步糖化发酵 |
Bioconversion of fuel ethanol from kenaf stalk |
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| RUAN Qi-cheng , QI Jian-min , HU Kai-hui , CAO Xiu-hua , LIN Guo-rong , WANG Dian. Bioconversion of fuel ethanol from kenaf stalk[J]. Journal of Fujian Agricultural and Forestry University, 2012, 41(1): 78-82 | |
| Authors: | RUAN Qi-cheng QI Jian-min HU Kai-hui CAO Xiu-hua LIN Guo-rong WANG Dian |
| Affiliation: | 1(1.Key Laboratory of Ministry of Education for Genetics,Breeding and Multiple Utilization of Crops,Fujian Agriculture and Forestry University,Fuzhou,Fujian 350002,China;2.Research Center of Energy Plant, Fujian Agriculture and Forestry University,Fuzhou,Fujian 350002,China;3.Qudouxiang Wine Co.,Ltd.of Fujian Province,Quanzhou,Fujian 362400,China) |
| Abstract: | Kenaf is a traditional quick-growing fiber crop with high yields,containing 42.31% of cellulose,22.58% of hemicellulose and 23.79% of lignin in the stalk.Hot water,dilute H2SO4 and aqueous sodium hydroxide(121 ℃,60 min) were employed in this study to pretreat kenaf stalk.Delignification and subsequent enzymatic saccharification and fermentation of kenaf stalk were investigated in order to evaluate effects of the pretreatment on bioconversion of kenaf lignocellulose for fuel ethanol production.The average conversion rate of kenaf cellulose to fermentable reducing sugar was 12.23%,25.62% and 85.34%,respectively.The result showed that alkaline pretreatment of kenaf stalk was more suitable compared to the other two.The application of simultaneous saccharification and fermentation(SSF) with ten grams of alkali-pretreated kenaf stalk as substrate was performed and theoretical ethanol yields of 76.71% were achieved after 168 h,giving ethanol concentration of 26.06 mg·mL-1. |
| Keywords: | kenaf stalk pretreatment cellulase fuel ethanol simultaneous saccharification and fermentation |
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