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Purpose <p>The primary objective of the study was to investigate the potential of <i>Pleurotus sajor caju</i> for laccase production using sawdust supplemented with wheat bran. Further, the research aimed to assess the environmental impact of the process and examined the application offermented waste for decolorization of textile effluent as a zero-waste discharge strategy.</p> Methods <p>Laccase production was conducted using sawdust supplemented with wheat bran. A life cycle assessment (LCA) was performed to evaluate the environmental impact of both the production and downstream processes using SIMA Pro software. Additionally, the decolorization potential of the fermented waste was tested on textile dyes and effluents.</p> Results <p>The partially purified laccase showed highest activity of 43.66 U mL<sup>-1</sup> at pH 3.0 and temperature of 30&#xa0;°C. It increases 1.20 fold under optimized conditions. The LCA revealed critical points for environmental improvement, specifically emphasizing the need for replacing conventional electricity with renewable sources and recycling salt used during the process. The fermented waste achieved &gt; 63% decolorization of textile dyes within 60&#xa0;min and 45% decolorization of textile effluents within 24&#xa0;h.</p> Conclusions <p>This study presents a sustainable approach to valorizing agricultural waste via laccase production. It highlights its potential for textile wastewater treatment while identifying opportunities for enhanced sustainability.</p>

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Augmentation of Laccase Production using Agro-Wastes Through Solid-State Fermentation and Elucidating Its Impact using Life Cycle Assessment

  • 期刊论文

  • 发表日期：

    2025年9月15日

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  • Shweta Kalia,
  • Farah Naaz,
  • Saurabh Samuchiwal,
  • Anushree Malik

摘要

Purpose

The primary objective of the study was to investigate the potential of Pleurotus sajor caju for laccase production using sawdust supplemented with wheat bran. Further, the research aimed to assess the environmental impact of the process and examined the application offermented waste for decolorization of textile effluent as a zero-waste discharge strategy.

Methods

Laccase production was conducted using sawdust supplemented with wheat bran. A life cycle assessment (LCA) was performed to evaluate the environmental impact of both the production and downstream processes using SIMA Pro software. Additionally, the decolorization potential of the fermented waste was tested on textile dyes and effluents.

Results

The partially purified laccase showed highest activity of 43.66 U mL-1 at pH 3.0 and temperature of 30 °C. It increases 1.20 fold under optimized conditions. The LCA revealed critical points for environmental improvement, specifically emphasizing the need for replacing conventional electricity with renewable sources and recycling salt used during the process. The fermented waste achieved > 63% decolorization of textile dyes within 60 min and 45% decolorization of textile effluents within 24 h.

Conclusions

This study presents a sustainable approach to valorizing agricultural waste via laccase production. It highlights its potential for textile wastewater treatment while identifying opportunities for enhanced sustainability.