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Sugarcane as a Bioenergy Source: History, Performance, and Perspectives for Second-Generation Bioethanol

机译：甘蔗作为生物能源的来源：第二代生物乙醇的历史，性能和前景

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摘要

For hundreds of years, sugarcane has been a main source of sugar, used as a sweetener, and alcohol, fermented from the plant juice. The high cost of petroleum towards the end of the twentieth century stimulated the development of new fermentation technologies for producing economically viable bioethanol from sugarcane as an alternative to importing petroleum. More recently, awareness of the effects of greenhouse gas emissions due to the global climate changes propelled bioethanol as a viable renewable fuel. Consequently, sugarcane gained importance as a bioenergy feedstock. However, the lack of knowledge about sugarcane physiology, notably on aspects of photosynthesis and source–sink relationship, has slowed the advance of this expanding bioenergy-producing system. Besides the changes in source–sink relationship, another option to increase bioethanol production even more would be to use a greater fraction of the total biomass of plants, i.e., not only the soluble sugars but also the sugars present in the cell wall fractions. Here, we review the history of sugarcane as a bioenergy crop and discuss some of the relevant routes that could be adopted in the near future to make sugarcane an even better feedstock for producing biofuels.
机译：数百年来，甘蔗一直是从植物汁中发酵的糖的主要来源，用作甜味剂和酒精。到20世纪末，石油的高昂价格刺激了新的发酵技术的发展，该技术可以用甘蔗生产经济上可行的生物乙醇来替代进口石油。最近，人们意识到由于全球气候变化而导致的温室气体排放的影响，促使生物乙醇成为一种可行的可再生燃料。因此，甘蔗作为一种生物能源原料变得越来越重要。但是，由于缺乏关于甘蔗生理的知识，特别是在光合作用和源库关系方面的知识，减缓了这种不断扩大的生物能源生产系统的发展。除了改变源库关系外，提高生物乙醇产量的另一种选择是使用植物总生物量的更大一部分，即不仅使用可溶性糖，而且还要使用存在于细胞壁部分的糖。在这里，我们回顾了甘蔗作为生物能源作物的历史，并讨论了在不久的将来可以采用的一些相关途径，以使甘蔗成为生产生物燃料的更好原料。

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  • 来源
    《Bioenergy research》 |2014年第1期|24-35|共12页
  • 作者

    Amanda P. de Souza; Adriana Grandis; Débora C. C. Leite; Marcos S. Buckeridge;

  • 作者单位

    1.Laboratório de Fisiologia Ecológica de Plantas (LAFIECO) Department of Botany Institute of Bioscience University of São Paulo São Paulo Brazil;

    1.Laboratório de Fisiologia Ecológica de Plantas (LAFIECO) Department of Botany Institute of Bioscience University of São Paulo São Paulo Brazil;

    1.Laboratório de Fisiologia Ecológica de Plantas (LAFIECO) Department of Botany Institute of Bioscience University of São Paulo São Paulo Brazil;

    1.Laboratório de Fisiologia Ecológica de Plantas (LAFIECO) Department of Botany Institute of Bioscience University of São Paulo São Paulo Brazil;

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  • 正文语种 eng
  • 中图分类
  • 关键词

    Bioenergy feedstocks Biofuels Sugarcane bioethanol Cell wall Source–sink relationship Sustainability;

    机译：生物能源原料生物燃料甘蔗生物乙醇细胞壁源汇关系可持续性;

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