BIOTECHNOLOGICAL USE OF PLEUROTUS OSTREATUS FOR THE MANAGMENT OF AGROINDUSTRIAL WASTE

摘要

The breakdown of plant biomass having a high lignin content using the Pleurotus ostreatus fungus allows the conversion of 36-42% of said biomass into edible mushrooms of high nutritional value, the remaining 58-64% being a plant biomass massively invaded by the structures of the fungus and in which the lignin has broken down by 90-99%. This natural process has been optimised by means of potentiation of the inoculum, stimulation of the degradative enzymes and control of factors such as oxygenation, moisture and light, thereby facilitating the colonisation by the fungus and limiting the conditions necessary for contamination. This optimisation dispenses with the use of growth promoters, antibiotics or complex methods, allowing the production of mushrooms suitable for human consumption that include a high protein index (25-34% of the dry weight, 18-23% animal protein and 7-11% vegetable) and an enriched compost suitable for use in farming. This process, which is 100% organic, provides an environmentally friendly and effective solution to the problem of hard-to-break-down agroindustrial waste, such as, for example, waste from the African oil palm (Elaeis guineensis) sector.