Produção de biossurfactante utilizando melancia como meio de cultivo: síntese em cepas do microrganismo bacillus pumillus

Abstract

Biosurfactants área molecules from microbial origin similar to those of non renewable resources. It’s molecules are amphiphilic because they have a lipophilic (apolar) region and another hydrophilic (polar) region, forming globular aggregates known as micelles in the presence of non-miscibleliquids. They presente emulsification functions and are applied in several industrial áreas, such as pharmaceutical, food, sanitizing industries as well as bioremediators in disasters associated with oil spills. Their advatages in relationto synthetic surfactants are that they provide ecological alternatives, thus avoiding the intoxication of the applied médium and they presente better performances in enormous variation of temperature, pH and salinity of the médium. Yours synthesis and commercialization on a larg escale is hampered by the cost of production, since expensive substratum are used as sources of nutrients. Regarding this, the present research aim in gatthean alysis of na inducer substrat um conteining water melon juice, a regionally accessible and low-cost fruit, for thegrouth of Bacillus pumilus, a merine bacterium of Bacilluss trains that demonstrate prominence in the production of bioemulsifiers. The development of B. pumilus in the present study showed favorable results in the first 48h for the production of bioemulsifiersandespeciallyat 24h of cultivation ocurred a expressive decrease in substrate that was approximately 80%