Topochemistry analysis of sugar cane pretreated with alkaline sulfite

• Grant number: 12/06749-0
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: June 01, 2012
• End date: July 31, 2013
• Field of knowledge: Biological Sciences - Biochemistry - Enzymology
• Principal Investigator: Adriane Maria Ferreira Milagres
• Grantee: Mariana Bazzeggio da Fonseca
• Host Institution: Escola de Engenharia de Lorena (EEL). Universidade de São Paulo (USP). Lorena , SP, Brazil
• Associated research grant: 08/56256-5 - Topochemistry, porosity and chemical composition determining successful enzymatic sacarification of sugarcane bagasse, AP.BIOEN.TEM
• Associated scholarship(s): 12/22011-1 - Topochemistry analysis of sugar cane pretreated with alkaline sulfite, BE.EP.IC

Abstract

This project aims to evaluate the distribution of lignin in stem cells from sugar cane, submitted to treatment with a solution of sodium sulfite-alkaline. For this, the cane is cut into size fractions determined to be impregnated with a solution of sodium hydroxide (5%) and sodium sulfite (10%). Next, the bagasse will be autoclaved at 121 ° C at different times. Will use three canes taken from a breeding program with different chemical compositions. The distribution of lignin before and after treatment will be determined by UV microspectrophotometry. In addition, will be determined changes in the absorption of water and of sulfonic acid groups on the fiber.(AU)