| 烟草下脚料发酵制取乙醇 |
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| 引用本文： | 谢丽萍,赵晓祥,杨虹蛟,吴镇妤.烟草下脚料发酵制取乙醇[J].环境工程学报,2010,4(6):1417-1420. |
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| 作者姓名： | 谢丽萍 赵晓祥 杨虹蛟 吴镇妤 |
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| 作者单位： | 东华大学环境科学与工程学院,上海 201620,东华大学环境科学与工程学院,上海 201620,东华大学环境科学与工程学院,上海 201620,东华大学环境科学与工程学院,上海 201620 |
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| 基金项目： | 上海市基础研究重点项目（09JC1400600）；上海市重点学科建设项目(B604) |
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| 摘 要： | 通过单因素实验考察了硫酸浓度、固液比和水解时间对硫酸水解的影响。结果显示最优条件为:硫酸浓度为50%(w/w),固液比为10%(w/v),时间为100 min。烟草下脚料在最佳硫酸水解条件下,经5倍稀释,中和pH值至5～6。取经过滤后的水解液(FH)用酿酒酵母(Sacchharomyces cerevisiae)发酵产生乙醇,最大的乙醇浓度和乙醇产量分别为1.09g/L和54.5 g/kg。未过滤水解液(UFH,包括水解残渣)加入纤维素酶(70 U/100 mL)和酿酒酵母(Sacchharomyces cerevisiae)进行发酵,最大的乙醇浓度和乙醇产量分别为1.23 g/L和61.5 g/kg。
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| 关 键 词： | 烟草下脚料 乙醇 发酵 硫酸水解 |
Ethanol produced by fermentation of waste tobacco materials |
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| Xie Liping,Zhao Xiaoxiang,Yang Hongjiao and Wu Zhenyu.Ethanol produced by fermentation of waste tobacco materials[J].Techniques and Equipment for Environmental Pollution Control,2010,4(6):1417-1420. |
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| Authors: | Xie Liping Zhao Xiaoxiang Yang Hongjiao and Wu Zhenyu |
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| Institution: | College of Environmental Science and Engineering, Donghua University, Shanghai 201620,China,College of Environmental Science and Engineering, Donghua University, Shanghai 201620,China,College of Environmental Science and Engineering, Donghua University, Shanghai 201620,China and College of Environmental Science and Engineering, Donghua University, Shanghai 201620,China |
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| Abstract: | The potential of tobacco waste as a raw material for ethanol production was investigated. In this work, the effects of concentration of sulfuric acid, solid-liquid ratio and time on reducing sugar yield were studied using single factor tests. Best results were achieved at 50%(w/w) acid loading, 10%(w/v) solid-liquid ratio and 100 min. Under the optimal hydrolysis conditions, the maximal ethanol concentration and ethanol yield, with Sacchharomyces cerevisiae, were 1.09 g/L and 54.5 g/kg, respectively from filtered hydrolysate(diluting 5 times). However, the maximal ethanol concentration and ethanol yield, with Sacchharomyces cerevisiae, were 1.23 g/L and 61.5 g/kg, respectively from unfiltered hydrolysate (adding 70 U/100 mL cellulose and diluting 5 times). |
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| Keywords: | waste tobacco materials ethanol fermentation sulfuric acid hydrolysis |
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