da Silva Teresa Lopes, Gouveia Luísa, Reis Alberto
Laboratório Nacional de Energia e Geologia, I.P., Unidade de Bioenergia, Estrada do Paço do Lumiar, 22, 1649-038, Lisboa, Portugal,
Appl Microbiol Biotechnol. 2014 Feb;98(3):1043-53. doi: 10.1007/s00253-013-5389-5. Epub 2013 Dec 13.
The production of microbial biofuels is currently under investigation, as they are alternative sources to fossil fuels, which are diminishing and their use has a negative impact on the environment. However, so far, biofuels derived from microbes are not economically competitive. One way to overcome this bottleneck is the use of microorganisms to transform substrates into biofuels and high value-added products, and simultaneously taking advantage of the various microbial biomass components to produce other products of interest, as an integrated process. In this way, it is possible to maximize the economic value of the whole process, with the desired reduction of the waste streams produced. It is expected that this integrated system makes the biofuel production economically sustainable and competitive in the near future. This review describes the investigation on integrated microbial processes (based on bacteria, yeast, and microalgal cultivations) that have been experimentally developed, highlighting the importance of this approach as a way to optimize microbial biofuel production process.
目前正在对微生物生物燃料的生产进行研究，因为它们是化石燃料的替代来源，化石燃料正在减少，且其使用对环境有负面影响。然而，到目前为止，源自微生物的生物燃料在经济上缺乏竞争力。克服这一瓶颈的一种方法是利用微生物将底物转化为生物燃料和高附加值产品，同时利用各种微生物生物质成分生产其他感兴趣的产品，作为一个综合过程。通过这种方式，可以使整个过程的经济价值最大化，同时减少产生的废物流。预计这种综合系统将使生物燃料生产在不久的将来在经济上具有可持续性和竞争力。本综述描述了对已通过实验开发的综合微生物过程（基于细菌、酵母和微藻培养）的研究，强调了这种方法作为优化微生物生物燃料生产过程的一种方式的重要性。
