Evaluación del crecimiento de la seta Pleurotus ostreatus sobre residuos de totora (Schoenoplectus californicus)

Abstract

The aim of this study was to evaluate the growth of the Pleurotus ostreatus mushroom on Cattail (Schoenoplectus californicus) residues. For this, cattail, barley and wheat residues were collected in San Antonio Lagoon and in an area belonging to Chambo county. The physicochemical composition analysis of the residues used was carried out in the Biotechnology Laboratory, Faculty of Science, as well as the bromatological study of the fungal biomass, whose parameters were moisture, ash, fiber and fat percentage, organic carbon, nitrogen and protein content of the biomass production. Three residues were mixed to obtain a total of three treatments with four replicates each. The statistical analysis was determined by simple Anova and Tukey's comparison test. Treatment three, consisting of cattail, barley and wheat residues, reflected the best precocity time, yield, biological efficiency and biomass production in comparison with treatments one and two, which only contained cattail residues, while the other treatment, contained cattail and barley residues. It was determined that the substrate formed by cattail, barley and wheat for the cultivation of Pleutorus ostreatus presented the best yield with a value of 24.80%, a biological efficiency of 71.93%, a biomass production of 218.73 grams and a precocity time of 26 days; in addition, the fruiting bodies registered high values of protein content with 24.84%. Therefore, these mushrooms are considered as food due to their nutritional value. It was concluded that the mixture of the three residues contributes in the production of the mushroom. Thus, it is recommended to use these residues in future research.