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Revista mexicana de micología
Print version ISSN 0187-3180
Abstract
BARRIOS ESPINOZA, Brenda M.; MORENO RUIZ, Lilia and SANCHEZ, José Ernesto. Composting in wooden boxes as substrate pretreatment for cultivating Pleurotus ostreatus. Rev. Mex. Mic [online]. 2009, vol.29, pp.51-59. ISSN 0187-3180.
In the State of Chiapas, Mexico two methods are used for oyster mushroom substrate preparation: alkaline immersion and steam pasteurization. The present work had the objective of comparing the alkaline immersion and the steam pasteurization methods to an alternative method of composting the substrate and to evaluate the yield capacity of three strains of P. ostreatus cultivated on a substrate pasteurized by composting. The statistical analysis separated two groups with significant differences among them (p=0.0007): Group A formed by the composting method (Biological efficiency BE=112%, Production rate PR=1.87% and yield Y=0.16) and the steam pasteurization method (BE=102%, PR=1.85% and Y= 0.15), and group B formed by the alkaline immersion method (BE, PR and Y of 62%, 1.07% and 0.10, respectively). Crop evaluation of the three strains under study showed no difference among strains (p= 0.93).
Keywords : Alkaline immersion; steam pasteurization; substrate selectivity; oyster mushroom; evaluation of strains.