MYCOLab Ai Logo - gold and army green

Production of oyster mushroom (Pleurotus ostreatus) from some waste lignocellulosic materials and FTIR characterization of structural changes

Summary

Researchers successfully grew oyster mushrooms on hazelnut branch waste, a byproduct previously burned or discarded in Turkey. The mushrooms grown on hazelnut branches produced higher yields than traditional wheat straw substrates. Scientists used specialized analysis to show how the fungus breaks down the plant material’s structure. This finding suggests a practical way to recycle agricultural waste while producing nutritious food.

Background

Oyster mushrooms are commonly cultivated edible fungi with high nutritional value. Turkey and Italy produce 80% of world hazelnut supply, generating substantial hazelnut husk and branch pruning wastes. These lignocellulosic materials have potential for mushroom cultivation as alternative substrates.

Objective

To cultivate oyster mushroom (Pleurotus ostreatus) from hazelnut branch pruning waste for the first time, and to evaluate other lignocellulosic wastes including hazelnut husk, wheat straw, rice husk, and spent coffee grounds. Chemical composition changes and structural modifications were characterized using FTIR analysis.

Results

Hazelnut branch waste yielded 255.7 g/kg (63.9% biological efficiency), higher than wheat straw control at 172.5 g/kg. Longest spawn run time occurred in hazelnut husk and coffee ground mixture (45 days). After mushroom cultivation, holocellulose and α-cellulose decreased while ash increased. FTIR showed significant structural changes at wavelengths 1735, 1625, 1510, 1322, and 1230 cm⁻¹.

Conclusion

Hazelnut branch pruning waste proves viable for P. ostreatus cultivation with superior yield compared to wheat straw. Lower lignin and higher cellulose content in hazelnut branches facilitated fungal degradation and mushroom production. FTIR analysis confirmed P. ostreatus enzymatically degrades cellulose, hemicellulose, and lignin components.
  • Published in:Scientific Reports,
  • Study Type:Experimental Study,
  • Source: 10.1038/s41598-023-40200-x; PMID: 37558821
Scroll to Top