Applied Microbiology

The aim of this work was the development by biotechnological means a sub olive products: The olive pomace for the wilaya of Bejaia, Algeria in order to cultivate a local fungal strain Beauveria bassiana to produce biomass by fermentation of the residue and to determine their physicochemical and microbiological composition. The results show that the physicochemical composition of olive pomace is interesting 91%, 5.4% and 1.54% respectively for dry matter, ash and soluble sugars is low in crude cellulose which is 18% with an acid pH 6.02. Microbiological analysis shows significant burden microorganisms. The growth of these germs on various carbon sources shows that the pomace can be converted by fermentation on solid medium to produce a biomass Beauveria bassiana that gave encouraging results: Biomass production of 1.2×108 spores/ml that is accompanied by changes in pH and rate of degradation of cellulosic compounds and soluble sugars.