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<p>This study aims to optimize biosurfactant production by <i>Streptomyces gobitricini</i> strain BS-2. After the initial screening, the effective factors on the production of biosurfactant were investigated with the two-level factorial statistical. The physical and chemical features and structure of the biosurfactant crafted were analyzed using FTIR, CHNS, EDX, and SEM. The extracted biosurfactant resulted in a decrease in interfacial tension from 72 mN/m to 29 mN/m, with a critical micelle concentration (CMC) of 300 mg/mL. The optimum medium for biosurfactant production that led to utmost diminution in culture broth surface tension (29 mN/m) was: crude oil (1.5%, v/v), hydrolyzed protein (1 g/L), yeast extract (0.5 g/L), molasses (1.5 g/L) and olive oil (1% v/v). The glycolipid organization of the microbial surfactant was confirmed <i>via</i> FTIR, CHNS, EDX, and SEM analysis. Analysis using GC indicated that the presence of biosurfactant increased crude oil degradation by <i>S. gobitricini</i> strain BS-2 dramatically (87%) and this bacterium effectively degraded most of its alkane components. Furthermore, the glycolipid biosurfactant displayed significant development repression against therapeutic bacterial microbes. In summary, the glycolipid biosurfactant produced by <i>S. gobitricini</i> strain BS-2 exhibited diverse functional properties and showed promise for potential biomedical and biotechnological applications.</p>

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Statistical Optimization, Structural Characterization, and Application of Biosurfactant Produced by Streptomyces gobitricini Strain

  • 期刊论文

  • 发表日期：

    2025年5月8日

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  • Al-Enazi Nouf

摘要

This study aims to optimize biosurfactant production by Streptomyces gobitricini strain BS-2. After the initial screening, the effective factors on the production of biosurfactant were investigated with the two-level factorial statistical. The physical and chemical features and structure of the biosurfactant crafted were analyzed using FTIR, CHNS, EDX, and SEM. The extracted biosurfactant resulted in a decrease in interfacial tension from 72 mN/m to 29 mN/m, with a critical micelle concentration (CMC) of 300 mg/mL. The optimum medium for biosurfactant production that led to utmost diminution in culture broth surface tension (29 mN/m) was: crude oil (1.5%, v/v), hydrolyzed protein (1 g/L), yeast extract (0.5 g/L), molasses (1.5 g/L) and olive oil (1% v/v). The glycolipid organization of the microbial surfactant was confirmed via FTIR, CHNS, EDX, and SEM analysis. Analysis using GC indicated that the presence of biosurfactant increased crude oil degradation by S. gobitricini strain BS-2 dramatically (87%) and this bacterium effectively degraded most of its alkane components. Furthermore, the glycolipid biosurfactant displayed significant development repression against therapeutic bacterial microbes. In summary, the glycolipid biosurfactant produced by S. gobitricini strain BS-2 exhibited diverse functional properties and showed promise for potential biomedical and biotechnological applications.