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首页> 外文期刊>International Journal of Environment and Bioenergy >Feasibility of Bioethanol Production Potential and Optimizationfrom Selected Lignocellulosic Waste Biomass
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Feasibility of Bioethanol Production Potential and Optimizationfrom Selected Lignocellulosic Waste Biomass

机译：从选定的木质纤维素废料生物质中生产生物乙醇的潜力和优化的可行性

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Bioenergy future depends on an increased share of renewable energy,especially in developing countries. Bioethanol is one of the most important alternativerenewable energy sources that substitute the fossil fuels. Bioconversion of lignocellulosicbased biomass to ethanol is significantly hindered by the structural and chemical complexityof biomass, which makes these materials a challenge to be used as feed stocks for cellulosicethanol production. Lignocellulosic waste has a content of cellulose and hemicelluloses,which make it suitable as fermentation substrate when hydrolyzed. The objective of this workwas to evaluate the feasibility of ethanol production and optimization from Lignocellulosicwaste by using commercial bakery yeast, i.e., S.cereviciae. To conduct this study, Hydrolysisof lignocellulosic waste was carried out with dilute acid and the optimum condition wasexamined. Fermentation was held at temperature 30 °C and pH 5, and treated usingdifferent acid concentrations and residence times and temperature. Those all three factorswere significant variables for the yield of ethanol. The optimization study showed that thehighest bioethanol concentration of 4.4, 5.5 and 5.1 g/ml was observed under theoptimum conditions of with distilled water hydrolysis for 12 h by keeping boilingtemperature with reflux, and hydrolysis temperature of 120 0C held at 30 °C with backeryeasts, which is appreciable.
机译：生物能源的未来取决于可再生能源份额的增加，尤其是在发展中国家。生物乙醇是替代化石燃料的最重要的可替代可再生能源之一。木质纤维素基生物质向乙醇的生物转化受到生物质的结构和化学复杂性的显着阻碍，这使这些材料成为用作纤维素乙醇生产原料的挑战。木质纤维素废料中含有一定数量的纤维素和半纤维素，使其在水解时适合作为发酵底物。这项工作的目的是评估通过使用商业烘焙酵母，即酿酒酵母，从木质纤维素废料生产乙醇和优化乙醇的可行性。为了进行这项研究，用稀酸水解木质纤维素废料，并研究了最佳条件。发酵保持在温度30°C和pH 5，并使用不同的酸浓度，停留时间和温度进行处理。这三个因素都是乙醇收率的重要变量。优化研究表明，在最佳温度下，蒸馏水水解保持沸腾回流温度为12 h，在120°C的水解温度保持在30°C的条件下，偏乙醇酸的最高生物乙醇浓度为4.4、5.5和5.1 g / ml，这是可观的。

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