Bioconversión de residuos agroindustriales a través del cultivo de Pleurotus ostreatus

Bioconversion of rice straw (Oriza sativa), coffee pulp (Coffea arabica) and banana leaves (Musa sapiensis) after Pleurotus ostreatus cultivation was evaluated. Nutrient availability and digestibility assays were performed both in fresh substrates and residues. Changes within substrates were analyzed through t (student) paired tests. Coffee pulp showed a decrease in lignin, cellulose, organic cell wall and low digestibility fractions (P<0.05); an increase in the C/L ratio, organic cell content and IVDMD but no change on the available protein, hemicellulose and high digestibility fraction. For banana leaves, available protein, lignin, cellulose hemicellulose, organic cell wall contents and the low digestibility fraction decreased (P<0.05); organic cell content and the high digestibility fraction showed a significant increase; C/L ratio and IVDMD showed no change. A decrease in the available protein, organic cell wall and low digestibility fraction was observed for rice straw (P<0.05). Organic cell content and the high digestibility fraction exhibited a significant increase.The rest of the response variables had no change on this substrate. Lignin reduction indicated a positive bioconversion effect over coffee pulp and banana leaves. Changes in organic cell contents, organic cell wall and low digestibility fraction indicated a positive bioconversion effect for all substrates.