Advanced search
Start date
Betweenand

Optimization of sugarcane biomass pretreatment to obtain a xylose-rich hemicellulosic hydrolysate

Grant number: 17/19145-0
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): January 01, 2018
Effective date (End): December 31, 2018
Field of knowledge:Biological Sciences - Biochemistry - Chemistry of Macromolecules
Principal Investigator:Kelly Johana Dussán Medina
Grantee:Bruna Gava Floriam
Home Institution: Instituto de Química (IQ). Universidade Estadual Paulista (UNESP). Campus de Araraquara. Araraquara , SP, Brazil

Abstract

In spite of the investments already made in Brazil to implement the first plant for the production of 2G-ethanol using straw and sugarcane bagasse, this technology still presents a great potential for growth. 2G-ethanol production from sugarcane co-products (biomass resulting from 1G-ethanol and sugar production) does not depend on the production of food for its industrialization neither the expansion of sugarcane area planted. However, there are still obstacles to be overcome such as lignocellulosic matrix deconstruction to make monomeric sugars available to obtain different bioproducts using chemical or biochemical pathways. The pre-treatment stage is one of the fundamental unit operations for the conversion of lignocellulosic materials to different bioproducts, due to the close association between the three main components of the cell wall (cellulose, hemicellulose and lignin). Therefore, the main role of the pre-treatment is to decrease this interaction. Thus, the present project aims to evaluate operational variables that influence pre-treatment of sugarcane biomass (straw/bagasse mixture) using dilute sulfuric acid to obtain the maximum extraction of xylose from hemicellulosic fraction. (AU)