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Cultivation of Different Oyster Mushroom (Pleurotus species) on Coffee Waste and Determination of Their Relative Biological Efficiency and Pectinase Enzyme Production, Ethiopia

Summary

This research shows that oyster mushrooms can be successfully grown on leftover coffee waste (husks and parchment), turning an environmental problem into a nutritious food source. Different oyster mushroom species performed differently, with P. ostreatus being the most efficient. Pre-composting the coffee waste improved mushroom yields significantly. The study demonstrates that using coffee waste for mushroom cultivation is both economically viable and environmentally beneficial.

Background

Oyster mushrooms are the third most cultivated mushroom species globally and can be grown on lignocellulosic wastes including coffee byproducts. Coffee waste, abundant in tropical regions, contains anti-nutritional factors and causes environmental pollution when left unutilized. Mushroom cultivation on these wastes represents an economical organic recycling process.

Objective

This study evaluated the feasibility of using coffee waste (husk and parchment) as substrate for cultivation of four Pleurotus species (P. citrinopileatus, P. eryngii, P. ostreatus, and P. sapidus). The research determined their relative biological efficiency, spawn running periods, pinhead formation times, number of flushes, and pectinase enzyme production.

Results

P. ostreatus showed the shortest pinhead formation (20-21 days) and highest biological efficiency (60.33-61.92% on coffee husk). All four species produced at least three flushes with highest yields in flush 1. Composted substrates were significantly more efficient than noncomposted ones (P < 0.05). P. sapidus showed the highest pectolytic activity, followed by P. ostreatus.

Conclusion

Composted coffee waste proved to be a suitable and efficient substrate for cultivating protein-rich oyster mushrooms while promoting environmental sustainability. P. ostreatus demonstrated superior performance in both yield and biological efficiency. The study demonstrates the feasibility of using coffee waste as substrate for commercial mushroom cultivation.
  • Published in:International Journal of Microbiology,
  • Study Type:Experimental Study,
  • Source: PMID: 35571352, DOI: 10.1155/2022/5219939
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