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Development of a low severity pretreatment process for the production of sugarcane straw oligosaccharides

Grant number: 17/15477-8
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): September 01, 2017
Status:Discontinued
Field of knowledge:Engineering - Chemical Engineering
Cooperation agreement: BBSRC, UKRI
Principal Investigator:Telma Teixeira Franco
Grantee:Lívia Beatriz Brenelli de Paiva
Home Institution: Núcleo Interdisciplinar de Planejamento Energético (NIPE). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
Associated research grant:15/50612-8 - An integrated approach to explore a novel paradigm for biofuel production from lignocellulosic feedstocks, AP.TEM
Associated scholarship(s):20/01007-2 - Developing tailored lignin-based nanomaterials for environmental friendly applications within integrated biorefinery concept, BE.EP.PD

Abstract

Sugarcane straw, consisting of green tops and dry leaves, can be maintained on fields to improve soil quality or harvested for different purpose such as bioelectricity and second-generation ethanol production (E2G). The optimum option between these two uses is still uncertain and requires further study. Considering sugarcane straw application in fractionation processes for sugars production, it is important to investigate the physicochemical properties and composition of green tops and dry leaves in order to develop models to use in rational pretreatment projects. In addition, operational conditions can be tailor-made in order to obtain products with specific chemical and structural properties, such as the production of oligosaccharides. It is known that the pre-treatment stage represents approximately 40% from the total cost of investing in an E2G plant; therefore, modifications in process conditions and characteristics of the desired products can bring technological advantages and economic benefits to the technology. In this sense, the aim of this project is to study and develop a low severity pretreatment route for sugarcane straw. In addition, operational conditions will be optimized in order to maximize the xylooligosaccharides production and recovery, and at the same time, generating a pretreated material suitable to obtain celluloligosaccharides by enzymatic routes. The postdoc proposal is part of a FAPESP project, RCUK partnership "An integrated approach to explore a novel paradigm for biofuel production from lignocellulosic feedstocks (FAPESP 15/50612-8)". The oligosaccharides produced during the project, either xylo and celluloligosaccharides, with specific degrees of polymerization, will be used in fermentation processes. Genetically modified microorganisms for this stage will also be developed during the main project, providing competitive advantages in bioprocess applications due to its specificity of substrate consumption (AU)

Scientific publications (4)
(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)
BRENELLI, LIVIA B.; FIGUEIREDO, FERNANDA L.; DAMASIO, ANDRE; FRANCO, TELMA T.; RABELO, SARITA C. An integrated approach to obtain xylo-oligosaccharides from sugarcane straw: From lab to pilot scale. Bioresource Technology, v. 313, OCT 2020. Web of Science Citations: 0.
TRAMONTINA, ROBSON; BRENELLI, LIVIA BEATRIZ; SOUSA, AMANDA; ALVES, RAFAEL; ZETTY ARENAS, ANA MARIA; NASCIMENTO, VIVIANE MARCOS; RABELO, SARITA CANDIDA; FREITAS, SINDELIA; RULLER, ROBERTO; SQUINA, FABIO MARCIO. Designing a cocktail containing redox enzymes to improve hemicellulosic hydrolysate fermentability by microorganisms. Enzyme and Microbial Technology, v. 135, APR 2020. Web of Science Citations: 0.
BERTOLO, V, MIRELLA R.; MARTINS, VIRGINIA C. A.; HORN, MARILIA M.; BRENELLI, LIVIA B.; PLEPIS, ANA M. G. Rheological and antioxidant properties of chitosan/gelatin-based materials functionalized by pomegranate peel extract. Carbohydrate Polymers, v. 228, JAN 15 2020. Web of Science Citations: 0.
BERTOLO, V, MIRELLA R.; BRENELLI DE PAIVA, LIVIA B.; NASCIMENTO, VIVIANE M.; GANDIN, CESAR A.; NETO, MARIO O.; DRIEMEIER, CARLOS E.; RABELO, SARITA C. Lignins from sugarcane bagasse: Renewable source of nanoparticles as Pickering emulsions stabilizers for bioactive compounds encapsulation. INDUSTRIAL CROPS AND PRODUCTS, v. 140, NOV 15 2019. Web of Science Citations: 1.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.