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Biotecnología Aplicada

On-line version ISSN 1027-2852


PINEDA-INSUASTI, Julio A; SOTO-ARROYAVE, Claudia P  and  BELTRAN, Luis. Stoichiometry equation to describe the growth of the Pleurotus ostreatus ceba-gliie-po-010606 strainEcuación estequiométrica para describir el crecimiento de Pleurotus ostreatus cepa ceba-gliie-po-010606. Biotecnol Apl [online]. 2014, vol.31, n.1, pp.48-52. ISSN 1027-2852.

This work was aimed at developing a proximate stoichiometric equation to describe the growth of Pleurotus ostreatus mushroom strain ceba-gliie-po-010106 on picking beans (Phaseolus vulgaris) waste. Empirical formulas were established for the residue of fresh dried picking beans (CH1.81O0.81N0.15) and the biomass of the fungal strain (CH1.83O0.84N0.26). The elemental composition of these materials and the ashes was determined. The stoichiometric coefficients obtained further supported the estimation of parameters relevant for fungal growth characterization: theoretical biological efficiency (867.49 g of fungal dry matter (FDM)/kg of substrate dry matter), mean coefficient of breath (0.77 CO2/mol O2 consumption), specific air consumption (1.36 m3/kg FDM) and metabolic heat (16 576.47 kJ/kg FDM).

Keywords : Pleurotus ostreatus; solid fermentation; edible fungus; stoichiometry.

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