Study of lead sorption by Saccharomyces cerevisiae and yeasts biomass residues of sucro alcohol industry production

• Grant number: 09/15149-4
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: April 01, 2010
• End date: November 30, 2010
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
• Principal Investigator: Geórgia Christina Labuto Araújo
• Grantee: Bianca Trama Freitas
• Host Institution: Escola de Artes, Ciências e Humanidades (EACH). Universidade de São Paulo (USP). São Paulo , SP, Brazil

Abstract

This project goals to carry forward the studies of scientific initiation performed by the student Bianca Trama in the last year. The preliminary results indicate sorption of lead (Pb) by Saccharomyces cerevisae when it is biologically inactivated. Some of these results are exhibited along the text. In order to expand and enhance the study, this project purposes the use of yeast residues from the sucro-alcohol industry for sorption of Pb in solutions prepared in laboratory and, subsequently, in industrial residues that contains this analyte. Different parameters related with the sorption of metals by dead biological materials will be examined, such as temperature, pH variation, ionic strength effect, concentration of the biosorbent and analyte etc. It is important to remark that this purpose is associated with the project Jovem Pesquisador "Studies of sorption by yeasts of metal and organic compounds for bioremediation of industrial residues", coordinated by Profa. Dra. Geórgia C. L. Araújo and supported by the Fundação de Amparo à Pesquisa do Estado de São Paulo, Proc. 07/53860-6.