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<p>This study explores the potential of black soy sauce residue (SSR), an agro-industrial by-product, as a carbon source for bacterial cellulose (BC) production by <i>Komagataeibacter xylinus</i>. The research systematically evaluated the efficacy of SSR-water mixtures at various ratios for BC cultivation, fermented under static conditions at room temperature over 7&#xa0;days. The BC produced was thoroughly analyzed for its structural and physical properties using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and differential scanning calorimetry (DSC). The findings revealed that an SSR-water ratio of 1:50 yielded the highest BC production at 1.56&#xa0;g/L, exceeding the synthetic Hestrin-Schramm (HS) medium yield. Moreover, the BC fibers derived from SSR exhibited a reduced diameter (34–39&#xa0;nm) and enhanced crystallinity (89.3–93.7%) compared to those produced in HS medium. These results show the viability of SSR as a cost-effective and sustainable alternative to conventional BC production media.</p>

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Enhanced bacterial cellulose production from black soy sauce residue by Komagataeibacter xylinus: a sustainable bioconversion approach

  • 期刊论文

  • 发表日期：

    2025年4月5日

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  • Putri Amanda,
  • Efri Mardawati,
  • Hilmi Lisan Shidqi,
  • Yoice Srikandace,
  • Siti Aisyah Zahrad,
  • Een Sri Endah,
  • Dian Andriani,
  • Melbi Mahardika,
  • Myrtha Karina

摘要

This study explores the potential of black soy sauce residue (SSR), an agro-industrial by-product, as a carbon source for bacterial cellulose (BC) production by Komagataeibacter xylinus. The research systematically evaluated the efficacy of SSR-water mixtures at various ratios for BC cultivation, fermented under static conditions at room temperature over 7 days. The BC produced was thoroughly analyzed for its structural and physical properties using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and differential scanning calorimetry (DSC). The findings revealed that an SSR-water ratio of 1:50 yielded the highest BC production at 1.56 g/L, exceeding the synthetic Hestrin-Schramm (HS) medium yield. Moreover, the BC fibers derived from SSR exhibited a reduced diameter (34–39 nm) and enhanced crystallinity (89.3–93.7%) compared to those produced in HS medium. These results show the viability of SSR as a cost-effective and sustainable alternative to conventional BC production media.