Application of Nuclear Magnetic Resonance in lignocellulosic sugarcane bagasse materials, in pre-treatments and hydrolysis for 2nd generation ethanol production

• Grant number: 15/14306-0
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: October 01, 2015
• End date: September 30, 2017
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Organic Chemistry
• Principal Investigator: Tatiana Santana Ribeiro
• Grantee: Tatiane Bianquini de Godoy
• Host Institution: Centro de Ciências Agrárias (CCA). Universidade Federal de São Carlos (UFSCAR). Araras , SP, Brazil

Abstract

Global energy is strongly dependent on fossil fuels, therefore, about 80% of world consumption comes from these sources. This situation requires changes not only due the exhaustion of these reserves, but also due the negative effects to the environment. This problem is followed by the increase in world population and per capita energy consumption. The scientific development points to the use of new technology based on sustainable processes with renewable materials, as to improve second-generation biofuels also known as cellulosic ethanol (or G2) through the use of sugarcane bagasse, a renewable raw material and abundant. Nuclear Magnetic Resonance time domain (TD-NMR) is a non-invasive and low cost technique capable to measure the longitudinal (T1) and transverse (T2) relaxation time of hydrogen nuclei, the latter using the following Carr-Purcell Meiboom-Gill pulse (CPMG). In analyzes of this biomass the relaxation times will be observed to infer the mobility of water located inside these structures for further evaluation porosity compared to various types of pre-treatment (steam explosion, hydrothermal process and acid). In addition to the low-field NMR techniques, solid state NMR will be used to analyze the structural changes in different types of pre-treatments applied in order to propose new training process optimization mechanisms of soluble sugars to formation of ethanol G2.

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

BIANQUINI, TATIANE S.; FLORENCIO, CAMILA; DOS SANTOS GARCIA, RODRIGO HENRIQUE; COLNAGO, LUIZ ALBERTO; CECCATO-ANTONINI, SANDRA R.; CARMO, MARCELO; TELES, JOAO; FARINAS, CRISTIANE S.; RIBEIRO, TATIANA S.. Time domain NMR spectroscopy as a fast method for probing the efficiency of biomass pretreatments for second generation ethanol production. BIOMASS & BIOENERGY, v. 142, NOV 2020. (15/14306-0, 16/10636-8)