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<p>This study investigated the potential utilization of municipal cellulosic waste (MCW) materials as a substrate for Pleurotus ostreatus (oyster mushroom) cultivation, addressing urban waste management challenges. Three sterilization methods—organic treatment (OTM), thermal treatment (TTM), and chemical treatment (CTM)—were evaluated for substrate preparation. Comprehensive characterization using FTIR spectroscopy, Raman spectroscopy, and X-ray diffraction was conducted to analyze the functional groups, structures, and chemical compounds of substrates and cultivated mushrooms. The OTM-based substrate achieved maximum waste reduction (33%) compared to other treatment methods, demonstrating effective resource recovery and waste minimization. FTIR analysis revealed characteristic absorption peaks at 1510 and 1584&#xa0;cm<sup>−1</sup>, confirming the presence of lignocellulose and protein in the OTM-based substrate. XRD patterns showed cellulose planes at 2θ = 12.8 and 21.9, corresponding to reflections from (110) to (200). The OTM-based substrate produced superior mushroom yields (502&#xa0;g) compared to TTM and CTM substrates. Biological efficiency values for OTM, TTM, and CTM substrates were 29.89, 24.97, and 12.8%, respectively. Economic analysis revealed production costs of ₹25, ₹10, and ₹35 per kg for OTM, CTM, and TTM methods respectively, comparing favorably with commercial production costs of ₹45 per kg. This research demonstrates a cost-effective approach to municipal waste valorization through the production of high-value agricultural products, contributing to sustainable urban waste management and circular economy principles.</p> Graphical Abstract <p></p>

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Circular Economy Approach to Municipal Cellulosic Waste Valorization: Novel Substrate Development for Commercial Pleurotus Ostreatus Production

  • 期刊论文

  • 发表日期：

    2025年6月3日

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  • Mohini,
  • Satyam Mishra,
  • Suresh Sundaramurthy,
  • Harsangeet Kaur,
  • Arisutha Suresh

摘要

This study investigated the potential utilization of municipal cellulosic waste (MCW) materials as a substrate for Pleurotus ostreatus (oyster mushroom) cultivation, addressing urban waste management challenges. Three sterilization methods—organic treatment (OTM), thermal treatment (TTM), and chemical treatment (CTM)—were evaluated for substrate preparation. Comprehensive characterization using FTIR spectroscopy, Raman spectroscopy, and X-ray diffraction was conducted to analyze the functional groups, structures, and chemical compounds of substrates and cultivated mushrooms. The OTM-based substrate achieved maximum waste reduction (33%) compared to other treatment methods, demonstrating effective resource recovery and waste minimization. FTIR analysis revealed characteristic absorption peaks at 1510 and 1584 cm−1, confirming the presence of lignocellulose and protein in the OTM-based substrate. XRD patterns showed cellulose planes at 2θ = 12.8 and 21.9, corresponding to reflections from (110) to (200). The OTM-based substrate produced superior mushroom yields (502 g) compared to TTM and CTM substrates. Biological efficiency values for OTM, TTM, and CTM substrates were 29.89, 24.97, and 12.8%, respectively. Economic analysis revealed production costs of ₹25, ₹10, and ₹35 per kg for OTM, CTM, and TTM methods respectively, comparing favorably with commercial production costs of ₹45 per kg. This research demonstrates a cost-effective approach to municipal waste valorization through the production of high-value agricultural products, contributing to sustainable urban waste management and circular economy principles.

Graphical Abstract