The purpose of the present study was to compare the productivity of a fungal enzyme, invertase (sucrase o 13 fructo-furanosidase EC3.2.1.26) of Aspergillus niger grown in solid state fermentation (SSF) and submerged fermentation (SmF). Poliurethane foam was used as inert support in SSF experiments. One of the objectives was to...
Citric acid is industrially produced by liquid-state fermentation using fungi of the genus Aspergillus; however, this process heavily relies on the composition of the culture medium. On the other hand, citric acid production by solid-state fermentation is more robust in physiological and nutritional terms, favoring the growth and enabling the...
En el presente estudio se analizó el efecto de diferentes factores ambientales y nutricionales en la producción de pigmentos carotenoides, particularmente astaxantina, a partir de la la microalga verde unicelular Haematococcus pluvialis y la levadura basidomiceta Phaffia rhodozyma NRLL-10921 (BMH-103) Para la producción de carotenoides con H. pluvialis se empleó...
The environmental conditions and the pretreatment of coffee pulp for solid-state Penicillium commune fermentation at semi-pilot scale were studied. The semi-pilot reactor used had a capacity of nearly 26 Kg of wet pulp, and an internal mixing system consisted of two helicoidal ribbons. The environmental conditions studied were: initial moisture,...
En este trabajo se compararon los secretomas producidos en fermentación sólida por Aspergillus brasiliensis ATCC9642, utilizando un medio de glucosa a tres concentraciones (30, 100 y 180 g/L) y agrolita, como soporte inerte. Para la obtención del secretoma, se definió un estado fisiológico, donde el hongo presentaba la tasa de...
La Fermentación en Medio Sólido (FMS) es un proceso de cultivo de hongos y/o levaduras que permite la producción de metabolitos secundarios como las proteasas, las cuales tienen una demanda creciente en la industria. Este tipo de fermentación brinda mayor rendimiento que la fermentación sumergida y, bajo la concepción de...
The present work was focused on the characterization of Aspergillus brasiliensis proteome, assessing the culture system and sucrose concentration present in the culture medium. The work was parted into two stages. In the first stage, the effect of sucrose concentration under SSF (20 to 210 g/L, using perlite as support)...
Entomopathogenic fungi of the genus Metarhizium are important biological control agents. Regularly, the conidia of these fungi are produced in bag bioreactors that have limited capacity (1 kg of the substrate) and difficulties in monitoring and controlling culture conditions. Therefore, this type of process presents important variations in production, productivity,...
