Fronteras in biotecnologia y bioingenieria

Abstract

Solid state fermentation (SSF) deals with the cultivation of aerobic and anaerobic microorganisms on the surface or inside porous solid matrices. These solid matrices can act as substrates or as inert supports and absorb the components of the culture medium without liquid draining. Filamentous fungi (#Aspergillus, #Claviceps, #Penicillium, #Rhisopus, #Trichoderma) are the most adapted microorganisms for SSF. Ectomycorrhizal fungi (#Lactarious, #Pisolitus, #Suillus) as well as saprophytic fungi (#Lentinus, #Pleurotus) grow well on solid media containing different biodegradable and non biodegradable materials. For instance, manioc starch and sugar cane cellulose are biodegrable supports, while amberlite and vermiculite are non biodegradable supports. The growth of these microorganisms is evaluated by respirometry (continuous measurement of CO2 and O2) and the biochemistry of the produced biomass is accomplished by analyzing different cellular constituents. Some studies on physiology and biochemistry of microorganisms such as #Aspergillus niger, #Penicillium verrucosum, #Rhizopus oligosporus, #Schwanniomyces castellii, #Trichoderma harzianum, #Pisolitus tintorius and #Suillus colinitus$ growing in SSF are presented. (Résumé d'auteur