Microalgal biomass as a fermentation feedstock for bioethanol production
Microalgal biomass as a fermentation feedstock for bioethanol production
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DOI：
10.1002/jctb.2287
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发表时间：
2010-02-01
影响因子：
3.4
通讯作者：
Forde, Gareth M.
中科院分区：
文献类型：
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作者：
Harun, Razif;Danquah, Michael K.;Forde, Gareth M.
背景：化石燃料的成本不断增加，社会和工业对使用化石燃料所产生的环境影响的认识不断提高，因此需要更可持续的燃料选择。从糖和淀粉等可再生生物质中生产的生物乙醇被认为是这些选择之一，目前正在被广泛利用。然而，以糖和淀粉为原料生产生物乙醇造成了与食品市场在种植土地方面的重大竞争，这使得从这些来源提取的生物乙醇在经济上的吸引力较小。作为酵母菌在不同发酵条件下生产生物乙醇的底物。结果表明，从10g L脂肪提取液中获得的最高乙醇浓度为3.83g L-1。结论：这个产量水平(接近38%w/w)与现有生产系统的生产水平一致，表明微藻是一种很有前途的生物乙醇生产底物。(C)2009年化学工业学会
BACKGROUND: The increasing cost of fossil fuels as well as the escalating social and industrial awareness of the environmental impacts associated with the use of fossil fuels has created the need for more sustainable fuel options. Bioethanol, produced from renewable biomass such as sugar and starch materials, is believed to be one of these options, and it is currently being harnessed extensively. However, the utilization of sugar and starch materials as feedstocks for bioethanol production creates a major competition with the food market in terms of land for cultivation, and this makes bioethanol from these sources economically less attractive.RESULT: This study explores the suitability of microalgae (Chlorococurn sp.) as a substrate for bioethanol production via yeast (Saccharomyces bayanus) under different fermentation conditions. Results show a maximum ethanol concentration of 3.83 g L-1 obtained from 10 g L-1 of lipid-extracted microalgae debris.CONCLUSION: This productivity level (similar to 38% w/w), which is in keeping with that of current production systems endorses microalgae as a promising substrate for bioethanol production. (c) 2009 Society of Chemical Industry