Faculty of Engineering and Architecture, Postgraduate Program in Civil and Environmental Engineering, University of Passo Fundo, Campus I, L1 Building, BR 285, km 171, Zip Code 611, Bairro São José, Passo Fundo, RS, CEP: 99052-900, Brazil.
Environ Sci Pollut Res Int. 2017 Sep;24(26):20831-20843. doi: 10.1007/s11356-017-9778-7. Epub 2017 Aug 16.
Research on the influence of biosurfactants on the efficiency of in situ bioremediation of contaminated soil is continuously growing. Despite the constant progress in understanding the mechanisms involved in the effects of biosurfactants, there are still many factors that are not sufficiently elucidated. There is a lack of research on autochthonous or exogenous microbial metabolism when biostimulation or bioaugmentation is carried out to produce biosurfactants at contaminated sites. In addition, studies on the application of techniques that measure the biosurfactants produced in situ are needed. This is important because, although the positive influence of biosurfactants is often reported, there are also studies where no effect or negative effects have been observed. This review aimed to examine some studies on factors that can improve the production of biosurfactants in soils during in situ bioremediation. Moreover, this work reviews the methodologies that can be used for measuring the production of these biocomposts. We reviewed studies on the potential of biosurfactants to improve the bioremediation of hydrocarbons, as well as the limitations of methods for the production of these biomolecules by microorganisms in soil.
关于生物表面活性剂对污染土壤原位生物修复效率影响的研究不断发展。尽管人们对生物表面活性剂作用机制的理解不断取得进展，但仍有许多因素尚未得到充分阐明。在进行生物刺激或生物强化以在污染场地产生生物表面活性剂时，对于土著或外源微生物代谢的研究还不够充分。此外，还需要研究原位测量生物表面活性剂的应用技术。这很重要，因为尽管经常报道生物表面活性剂的积极影响，但也有研究观察到没有效果或产生负面影响的情况。本综述旨在检验一些关于可在原位生物修复过程中提高土壤中生物表面活性剂产量的因素的研究。此外，本工作还回顾了可用于测量这些生物复合材料生产的方法。我们综述了生物表面活性剂在改善烃类生物修复方面的潜力，以及微生物在土壤中产生这些生物分子的方法的局限性。
