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首页> 外文期刊>International Journal of Environmental Research and Public Health >Biosurfactant Production by Bacillus salmalaya for Lubricating Oil Solubilization and Biodegradation
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Biosurfactant Production by Bacillus salmalaya for Lubricating Oil Solubilization and Biodegradation

机译：萨尔玛芽孢杆菌生产的生物表面活性剂用于润滑油增溶和生物降解

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This study investigated the capability of a biosurfactant produced by a novel strain of Bacillus salmalaya to enhance the biodegradation rates and bioavailability of organic contaminants. The biosurfactant produced by cultured strain 139SI showed high physicochemical properties and surface activity in the selected medium. The biosurfactant exhibited a high emulsification index and a positive result in the drop collapse test, with the results demonstrating the wetting activity of the biosurfactant and its potential to produce surface-active molecules. Strain 139SI can significantly reduce the surface tension (ST) from 70.5 to 27 mN/m, with a critical micelle concentration of 0.4%. Moreover, lubricating oil at 2% (v/v) was degraded on Day 20 (71.5). Furthermore, the biosurfactant demonstrated high stability at different ranges of salinity, pH, and temperature. Overall, the results indicated the potential use of B. salmalaya 139SI in environmental remediation processes.
机译：这项研究调查了一种新型盐藻芽孢杆菌菌株产生的生物表面活性剂增强有机污染物的生物降解率和生物利用度的能力。由培养的139SI菌株产生的生物表面活性剂在所选培养基中显示出高的理化性质和表面活性。该生物表面活性剂显示出高乳化指数，并且在液滴崩塌试验中显示出积极的结果，该结果证明了该生物表面活性剂的润湿活性及其产生表面活性分子的潜力。 139SI菌株可将表面张力（ST）从70.5降至27 mN / m，临界胶束浓度为0.4％。另外，在第20天（71.5），以2％（v / v）的润滑油被降解。此外，该生物表面活性剂在盐度，pH和温度的不同范围内显示出高稳定性。总体而言，结果表明盐沼芽孢杆菌139SI在环境修复过程中的潜在用途。

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