【摘 要】
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From a greenhouse standpoint,the production of bioethanol from feedstock other than agriculture materials has been promoted in recent years.Some microalgae can accumulate a high content of starch (abo
【机 构】
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School of Chem.Eng.,Sungkyunkwan Univ.,Suwon 440-746,Korea
【出 处】
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The 6th International Conference on Separation and Technolog
论文部分内容阅读
From a greenhouse standpoint,the production of bioethanol from feedstock other than agriculture materials has been promoted in recent years.Some microalgae can accumulate a high content of starch (about 44% of dry base) from CO2 via photosynthesis.Algal biomass,Chlamydomonas reinhardtii UTEX 90,was converted into a suitable fermentable feedstock by two commercial hydrolytic enzymes.Without steps for the cell wall disruption,almost all starches were released by the enzymes and converted into glucose.Various conditions in the liquefaction and saccharification processes,such as enzyme concentration,pH,temperature,and residence time,have been investigated to obtain an optimum combination using the orthogonal analysis.As a result,approximately 235 mg of ethanol was produced from 1.0 g of algal biomass by a separate hydrolysis and fermentation (SHF) method.The main advantages of this process include the ease of isolating biomass,the low cost of chemicals,short residence time,and simple equipment system,all of which promote its large-scale application.
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