Assessment of a biochemical platform based on two streams model (C6 and C5) for conversion of rice straw into ethanol

• Grant number: 15/24813-6
• Support Opportunities: Regular Research Grants
• Start date: August 01, 2016
• End date: September 30, 2018
• Field of knowledge: Biological Sciences - Microbiology - Applied Microbiology
• Principal Investigator: Ines Conceicao Roberto
• Grantee: Ines Conceicao Roberto
• Host Institution: Escola de Engenharia de Lorena (EEL). Universidade de São Paulo (USP). Lorena , SP, Brazil
• City of the host institution: Lorena
• Associated researchers: Solange Inês Mussatto Dragone

Abstract

A competitive 2G ethanol production is still a scientific and technological challenge, both in terms of biomass processing as well as in the biochemical conversion of the carbohydrate fractions. One of the major barriers of this process is the development a technological route able to efficiently recover the carbohydrate fractions taking into account the characteristics of the biomass used. Furthermore, the impact of the selected route on the subsequent steps of the process (enzymatic hydrolysis and fermentation) should also be considered. Usually, one or more steps of pre-treatment are required to promote structural changes in biomass in order to obtain a pentose liquor (C5) with low toxicity for fermentation, and a residual solid material more susceptible to enzymatic hydrolysis of cellulose to obtain glucose (C6). Within this context, this project aims to study the 2G ethanol production from rice straw using a process configuration designed for separated fermentation of the two sugars streams (C6 and C5). In addition, the lignin fractions generated during the process will be characterized, and the optimal conditions for simultaneous saccharification and fermentation (SSF) employing an unconventional reactor design will be established. In this way, it is expected to contribute to progress in this important area of knowledge with possibilities for techno-economic analysis from the generated data (AU)

Scientific publications

(8)

(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)

DE ASSIS CASTRO, RAFAEL CUNHA; MUSSATTO, SOLANGE I.; ROBERTO, INES CONCEICAO. A vertical ball mill as a new reactor design for biomass hydrolysis and fermentation process. RENEWABLE ENERGY, v. 114, n. B, p. 775-780, DEC 2017. (13/13953-6, 15/24813-6)

CASTRO, RAFAEL C. A.; FERREIRA, ISABELA S.; ROBERTO, INES C.; MUSSATTO, SOLANGE I.. Isolation and physicochemical characterization of different lignin streams generated during the second-generation ethanol production process. International Journal of Biological Macromolecules, v. 129, p. 497-510, MAY 15 2019. (13/13953-6, 15/20510-9, 15/24813-6)

CASTRO, RAFAEL C. DE ASSIS; CAMACHO, CAMILO E. CABRERA; ROBERTO, INES C.; MUSSATTO, SOLANGE I.. Techno-economic assessment of rice straw biorefineries to produce ethanol with co-production of xylitol and phenolic acids. BIOMASS & BIOENERGY, v. 197, p. 10-pg., 2025-03-15. (13/13953-6, 15/24813-6, 15/20510-9)

ROBERTO, INES C.; CASTRO, RAFAEL C. A.; SILVA, JOAO PAULO A.; MUSSATTO, SOLANGE I.. Ethanol Production from High Solid Loading of Rice Straw by Simultaneous Saccharification and Fermentation in a Non-Conventional Reactor. ENERGIES, v. 13, n. 8, APR 2020. (15/24813-6, 13/13953-6)

DE ASSIS CASTRO, RAFAEL CUNHA; MUSSATTO, SOLANGE I.; ROBERTO, INES CONCEICAO. A vertical ball mill as a new reactor design for biomass hydrolysis and fermentation process. RENEWABLE ENERGY, v. 114, p. 6-pg., 2017-12-01. (15/24813-6, 13/13953-6)

DE ASSIS CASTRO, RAFAEL CUNHA; FONSECA, BRUNO GUEDES; LIMA DOS SANTOS, HILTON TULIO; FERREIRA, ISABELA SILVEIRA; MUSSATTO, SOLANGE INES; ROBERTO, INES CONCEICAO. Alkaline deacetylation as a strategy to improve sugars recovery and ethanol production from rice straw hemicellulose and cellulose. INDUSTRIAL CROPS AND PRODUCTS, v. 106, p. 9-pg., 2017-11-01. (15/24813-6, 13/13953-6)

DE ASSIS CASTRO, RAFAEL CUNHA; FONSECA, BRUNO GUEDES; LIMA DOS SANTOS, HILTON TULIO; FERREIRA, ISABELA SILVEIRA; MUSSATTO, SOLANGE INES; ROBERTO, INES CONCEICAO. Alkaline deacetylation as a strategy to improve sugars recovery and ethanol production from rice straw hemicellulose and cellulose. INDUSTRIAL CROPS AND PRODUCTS, v. 106, n. SI, p. 65-73, NOV 1 2017. (13/13953-6, 15/24813-6)

HALLERAKER, HILDE VIK; KALOGIANNIS, KONSTANTINOS; LAPPAS, ANGELOS; CASTRO, RAFAEL C. A.; ROBERTO, INES C.; MUSSATTO, SOLANGE I.; BARTH, TANJA. The Consistency of Yields and Chemical Composition of HTL Bio-Oils from Lignins Produced by Different Preprocessing Technologies. ENERGIES, v. 15, n. 13, p. 21-pg., 2022-07-01. (15/20510-9, 15/24813-6, 13/13953-6)