Valoración del crecimiento del hongo Ostra Rosado (Pleurotus djamor) sobre formulaciones de sustratos de residuos agroindustriales y forestales de la provincia de Cotopaxi para la producción de setas comestibles en la empresa ASOPROTEC.

Abstract

The growing of Pleurotus djamor fungus has a biological importance because they produce high quality proteins when growing on substrates formed by organic waste. The objective of this research was to evaluate the growth of the pink oyster fungus (Pleurotus djamor) on substrate formulations, in order to determine in which of these substrates the fungus generates higher productivity. The substrates were agroindustrial and forest residues (barley chaff, corn chaff, sugarcane bagasse and eucalyptus shavings). The mixtures to be evaluated were packed in 2 Kg bags of substrate. They were sterilized and inoculated with 100 g of Pleurotus djamor seed. The evaluated variables were: time of primordiums emergence, diameter of the carpophores, speed of growth, biological efficiency and yield of each substrate, in order to establish which provides the better conditions for the development of fungi. The corn chaff was the best substrate for the growth and production of the fungus studied because the primordiums took less time to appear (20 days), during the first harvest the fungus obtained in this substrate grew an average of 8.1 cm in diameter (indicator of morphological development), showed 38.86 percent of biological efficiency and a yield of 9.86 percent, with excellent organoleptic characteristics, thus considering a suitable and efficient substrate for the cultivation of this fungus. The cost-benefit ratio was also calculated, obtaining a factor of 2.12 which indicates that the project is profitable and viable.