In the last decades, efforts to reduce the use of fossil fuels have increased the search for alternative sustainable sources of renewable energy. In this scenario, hydrocarbons derived from fatty acids are among the compounds that have been drawing attention. The intracellular production of hydrocarbons by bacteria derived from cold environments such as the Antarctic continent is currently poorly investigated, as extremophilic microorganisms provide a great range of metabolic capabilities and may represent a key tool in the production of biofuels. The aim of this study was to explore the ability of bacterial cells derived from extreme environments to produce hydrocarbons with potential for further use as biofuels. Seven bacteria isolated from Antarctic samples were evaluated for hydrocarbon production using GC–MS approaches. Two isolates, identified as Arthrobacter livingstonensis 593 and Pseudoalteromonas arctica 628, were able to produce the hydrocarbon undecane (CH3-(CH2)₉-CH3) in concentrations of 1.39 mg L⁻¹ and 1.81 mg L⁻¹, respectively. Results from the present work encourage further research focusing on the optimization of hydrocarbon production by the isolates identified as producers, which may be used in further aircraft biofuel production. This is the first report on the production of the undecane compound by bacteria isolated from waterlogged soil and sponge from Antarctica.

在过去的几十年中，减少化石燃料使用的努力增加了对替代性可持续可再生能源的搜索。在这种情况下，衍生自脂肪酸的碳氢化合物已引起人们的关注。由于极端微生物提供了广泛的代谢能力，并且可能代表了生物燃料生产中的关键工具，因此对来自寒冷环境（例如南极大陆）的细菌在细胞内生产碳氢化合物的研究很少。这项研究的目的是探索源自极端环境的细菌细胞产生可能进一步用作生物燃料的碳氢化合物的能力。使用GC-MS方法评估了从南极样品中分离出的7种细菌的碳氢化合物产量。两个隔离Livingstonensis 593和Pseudoalteromona s arctica 628能够分别以1.39 mg L ^-1和1.81 mg L ^-1的浓度生产烃十一烷（CH3-（CH2）₉ -CH3）。目前工作的结果鼓励进行进一步的研究，重点是确定被确定为生产者的分离物对烃生产的优化，这些分离物可用于进一步的飞机生物燃料生产。这是关于从南极浸水土壤和海绵中分离出的细菌生产十一烷化合物的第一份报告。