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Enzymatic Activity and Nutrient Profile Assessment of Three Pleurotus Species Under Pasteurized Cenchrus fungigraminus Cultivation

Summary

This study tested growing oyster mushrooms on a special grass called Cenchrus fungigraminus that was heat-treated to remove harmful organisms. Three types of oyster mushrooms were grown, and researchers measured the enzymes they produced and the nutrition in the harvested mushrooms. The oyster mushroom species Pleurotus ostreatus grew fastest and produced the best yields, and the grass substrate proved to be an effective and affordable choice for small-scale mushroom farming.

Background

Oyster mushrooms (Pleurotus species) are commercially significant edible mushrooms with rich nutritional profiles and bioactive properties. Cenchrus fungigraminus is a perennial grass with high cellulose and crude protein content that can yield up to 200 tons per hectare as biomass, making it a suitable substrate for mushroom cultivation.

Objective

This study aimed to evaluate enzymatic activity, growth rates, nutritional composition, and yields of three Pleurotus species (P. ostreatus, P. pulmonarius, and P. florida) cultivated on pasteurized Cenchrus fungigraminus substrate.

Results

P. ostreatus demonstrated the fastest mycelial growth (25.33 days) and highest biological efficiency (78.23%), followed by P. pulmonarius (59.88%) and P. florida (39.66%). P. ostreatus showed the highest laccase activity (13.8 U/g on day 20) and manganese peroxidase activity (3.6 U/g on day 10), while P. pulmonarius had the highest carboxymethylcellulase activity.

Conclusion

Pasteurized C. fungigraminus is an effective and cost-efficient substrate for cultivating Pleurotus species with high yields and nutritional quality. Different Pleurotus species exhibit varying enzyme activity profiles during developmental stages, with P. ostreatus showing superior performance in biological efficiency and enzyme expression.
  • Published in:Current Issues in Molecular Biology,
  • Study Type:Experimental Study,
  • Source: PMID: 40136397, DOI: 10.3390/cimb47030143
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