Effects of natural oils and surfactants on cellulase production and activity

Abstract

A B S T R A C TEmulsification of natural oils by a surfactant increases their eficiency as chemical antifoams. The presence of low concentrations of fatty acids or other surfactants have been reported to inhibit or stimulate microbial growth andlor product formation.The effects of different natural oils, Tween 80 and saponin on growth and cellulase production by T. reesei and S. pulverulentum have been investigated. It was ,found that in general, emulsification leads to higher cellulase activities in both cultures, though there are variations in enzyme levels depending on the presence or absence of Tween 80 and of different oils in growth media as well as the substrates used for cellulase assay.

Uso de surfactantes como estratégia para melhorar o processamento do bagaço de cana-de-açúcar visando a produção de biopigmentos por >i<Monascus ruber>/i<

“…Trichoderma reesei and Sporotrichum pulverulentum, showing that emulsification by surfactant led to increased cellulase activity in the culture medium (Suha Sukan et al, 1989).…”

“…Reese and Maguire (1969) showed an introduction of Triton-X increased extracellular cellulase activity. After, Suha Sukan et al (1989) performed an evaluation of the effects of oils and surfactants (Tween 80) on cellulase production by…”