Pretreatment of sugarcane bagasse in the presence of Mn(II) and Cu(II) to produce cellulosic ethanol by enzymatic hydrolysis

• Grant number: 12/21491-0
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: December 01, 2012
• End date: November 30, 2013
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
• Principal Investigator: Roberto da Silva
• Grantee: Jessika de Souza Rossi
• Host Institution: Instituto de Biociências, Letras e Ciências Exatas (IBILCE). Universidade Estadual Paulista (UNESP). Campus de São José do Rio Preto. São José do Rio Preto , SP, Brazil

Abstract

Bagasse from sugar cane is a fibrous material that contains 32-50% cellulose and 19-25% hemicellulose, embedded in a matrix of lignin corresponding to 23-32% of the fiber, which can be hydrolyzed by chemical or enzymatic pathways. Thus, the goal of this project is to study the conditions promising for the disruption of the lignocellulosic material by enzymatic pathway searching known and minimizing the formation of fermentation inhibitors. Therefore, the oxidative action of ozone in the presence of metal ions in solution will be tested, linking it to the release of sugars and phenolic compounds from the action of a complex lignocelulolítico. In this context, is intended to refine a process technically and economically satisfactory, with good yield and significant reduction of time and energy.(AU)