da Silva Gervásio Paulo, Mack Matthias, Contiero Jonas
Department of Education, Bahia State University-Uneb, BR 407, Km 127, Senhor do Bonfim, BA, 48970-000, Brazil.
Biotechnol Adv. 2009 Jan-Feb;27(1):30-9. doi: 10.1016/j.biotechadv.2008.07.006. Epub 2008 Aug 16.
Petroleum is the main energy source utilized in the world, but its availability is limited and the search for new renewable energy sources is of major interest. Biofuels, such as ethanol and biodiesel, are among the most promising sources for the substitution of fossil fuels. Biodiesel can replace petroleum diesel, as it is produced from animal fats and vegetable oils, which generate about 10% (w/w) glycerol as the main by-product. The excess glycerol generated may become an environmental problem, since it cannot be disposed of in the environment. One of the possible applications is its use as carbon and energy source for microbial growth in industrial microbiology. Glycerol bioconversion in valuable chemicals, such as 1,3-propanediol, dihydroxyacetone, ethanol, succinate etc. is discussed in this review article.
石油是世界上主要使用的能源，但它的可获取性有限，因此寻找新的可再生能源备受关注。生物燃料，如乙醇和生物柴油，是替代化石燃料最有前景的来源之一。生物柴油可以替代石油柴油，因为它由动物脂肪和植物油生产，产生约10%（w/w）的甘油作为主要副产物。产生的过量甘油可能会成为一个环境问题，因为它不能在环境中处置。一种可能的应用是将其用作工业微生物学中微生物生长的碳源和能源。本文综述了甘油生物转化为有价值化学品，如1,3 - 丙二醇、二羟基丙酮、乙醇、琥珀酸等的相关内容。
