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  11. Physicochemical And Microbial Analysis Of Sugarcane Press Mud Reveals Ligninolytic And Plant Growth-promoting Bacteria With Soil Amendment Potential

Physicochemical and microbial analysis of sugarcane press mud reveals ligninolytic and plant growth-promoting bacteria with soil amendment potential

Sana Bano1, Kshitij Singh1, Anjali Chaudhary1

  • 1Department of Environmental Microbiology, School of Earth and Environmental Sciences, Babasaheb Bhimrao Ambedkar (A Central University), Lucknow, Uttar Pradesh, 226025, India.

World Journal of Microbiology & Biotechnology
|January 27, 2026

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View abstract on PubMed

Summary
This summary is machine-generated.

Sugarcane press mud, a nutrient-rich agricultural byproduct, can enhance soil and plant growth. However, its application requires careful management due to elevated metal and pollutant levels, necessitating controlled use for environmental safety.

Area of Science:

  • Agricultural Science
  • Environmental Science
  • Microbiology

Background:

  • Sugarcane press mud is an acidic waste product from sugar processing.
  • It contains valuable nutrients but also potentially harmful contaminants.
  • Its potential as a soil amendment and environmental impact are not fully understood.

Purpose of the Study:

  • To evaluate the physicochemical properties of sugarcane press mud.
  • To assess its microbiological and enzymatic profile for soil amendment potential.
  • To determine its environmental risks and benefits for agricultural application.

Main Methods:

  • Physicochemical analysis (pH, nutrient content, metal and pollutant levels).
  • Microbiological profiling under varying pH conditions.
Keywords:
BiofertilizerDistillery wasteMetal contaminantsOrganic pollutants

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  • Enzymatic activity assays (ligninolytic enzymes).
  • Plant growth trials with mustard (Brassica campestris).

    • Main Results:

    • Press mud is slightly acidic (pH 6.4) and rich in K, Mg, Ca, and P.
    • Elevated levels of Al, Fe, Mn, Zn, Cu, Pb, Cr, and 2,4-DTBP were detected.
    • Diverse bacterial communities were identified, with specific taxa thriving at different pH levels.
    • Microbes like E. coli, H. seropedicae, and M. luteus showed ligninolytic activity.
    • A 5:1 soil-to-press-mud ratio significantly improved mustard plant growth.

    Conclusions:

    • Sugarcane press mud is a valuable resource with plant growth-promoting and ligninolytic microbes.
    • Controlled application is crucial due to its contaminant load.
    • Press mud can be a sustainable soil amendment when managed properly.
    PGPB
    Press mud