November 2015

Microalgae cultivation for biosurfactant production

Microalgae can be used as both food and a source of bioactive compounds, such as oils, vitamins and biosurfactants. An important factor contributing to the production costs of bioactive compounds, such as biosurfactants, is the carbon source. One way to decrease production costs is by reducing carbon without a concomitant reduction in productivity. Biosurfactants have a wide range of industrial applications,...

Author(s): Elisângela Martha Radmann, Etiele Greque de Morais, Cibele Freitas de Oliveira, Kellen Zanfonato and Jorge Alberto Vieira Costa

November 2015

Carbon and nitrogen sources differently influence Penicillium sp. HC1 conidiation in solid and liquid culture

This work evaluates the effect of different carbon and nitrogen sources on conidiophore and conidia formation in Penicillium sp. HC1, a cellulolytic and xylanolytic fungi arousing industrial interest. A factorial design was used having two variables: A carbon source (glucose, sucrose, cassava starch, wheat bran, and rice flour) and a nitrogen source (tryptose, yeast extract, (NH4)2HPO4, and KNO3). The resulting 20...

Author(s): Ivonne Gutierréz-Rojas, Geraldine Tibasosa-Rodríguez, Nubia Moreno-Sarmiento, María Ximena Rodríguez-Bocanegra and Dolly Montoya