Modeling Grifola frondosa fungal growth during solid-state fermentation

Autor: Sandra Montoya Barreto, Carlos Eduardo Orrego Alzate, Laura Noemí Levin
Jazyk: angličtina
Rok vydání: 2011
Předmět:
Zdroj: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
DOI: 10.1002/elsc.201000087/abstract
Popis: Grifola frondosa (maitake) is an edible and medicinal mushroom. Considering its increasing popularity, there are limited references for its cultivation. Previous studies demonstrated that carpophore formation is correlated directly with mycelial biomass. The development of a mathematical model for its growth under solid-state fermentation (SSF) may help to predict the potential of different substrates for maitake production. G. frondosa growth and basidiome development was studied, using oak sawdust and corn bran as substrates. The fungal biomass content was determined by measuring N-acetyl-D-glucosamine (NAGA). It increased steadily for the first 80 days, to a maximum in coincidence with the first fruiting (60.5 mg NAGA/mg dry sample). Two mathematical models were selected to evaluate G. frondosa development, measuring reducing sugars consumption and NAGA synthesis, as an indirect assessment of fungal growth. Both models showed a good fit between predicted and experimental data: logistic model (R2 5 0.8896), two-stage model (R2 5 0.8878), but the logistic model required a minor number of adjustment parameters. Fil: Montoya Barreto, Sandra. Universidad de Caldas; Colombia Fil: Orrego Alzate, Carlos E.. Universidad Nacional de Colombia; Colombia Fil: Levin, Laura Noemí. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Micología y Botánica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Micología y Botánica; Argentina
Databáze: OpenAIRE