Deconstruction of plant tissues: possibilities for obtaining higher added-value materials

• Grant number: 19/19401-1
• Support Opportunities: Regular Research Grants
• Start date: May 01, 2020
• End date: April 30, 2022
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
• Principal Investigator: Vagner Roberto Botaro
• Grantee: Vagner Roberto Botaro
• Host Institution: Centro de Ciências e Tecnologias para a Sustentabilidade (CCTS). Universidade Federal de São Carlos (UFSCAR). Sorocaba , SP, Brazil
• Associated researchers: Antonio Riul Júnior ; Francisco Trivinho Strixino

Abstract

Biorefineries are becoming increasingly important and current. The "old concept" of using pulp for commercial purposes only as the most important component in plant tissue has been increasingly discontinued in the old pulp and paper industries. Thus, the search for materials derived from the main lignocellulosic components has been increasingly current and important. The deconstruction of plant tissues associated with the utilization and obtaining of new potentially tradable materials constitutes the central objective of the project. In this context, obtaining new products with higher added value derived from cellulose and lignin are fundamental. It is intended to expand the application studies of cellulose-derived hydrogels previously developed by GPML/UFSCar group. A major perspective in relation to this particular application is the preparation of micronutrient-loaded microspheres that can be used in poorly fertile soils and to increase vegetable productivity. Regarding lignin, the main focus will be on the preparation of C foams, possibly reinforced and additive with current applications focused on studies involving thermal and conductive properties of these foams. The literature has described the preparation of C foams from lignin, but the main differential of the work proposed here is to control the molar mass of lignin and to understand the relationship between molar mass/percentage of phenolic units and properties in general. A second application described in the literature has been the use of C foams in oil/water separation in simulations involving possible environmental accidents such as oil spills in the environment. (AU)

Scientific publications

(9)

(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)

OLIVEIRA, ANDRE L.; DE FREITAS, AMANDA DE S. M.; RODRIGUES, JESSICA S.; DO CARMO, KARINA P. P.; FERREIRA, MARYSTELA; BOTARO, VAGNER R. R.. Enhancement of UV-C irradiation protection of polystyrene matrix by tannin (Acacia mearnsii De Wild) additivation: Accelerated aging test. Journal of Materials Research, v. N/A, p. 16-pg., 2023-02-03. (19/19401-1)

RODRIGUES, JESSICA S.; LIMA, VITOR; ARAUJO, LUISA C. P.; BOTARO, VAGNER R.. Lignin Fractionation Methods: Can Lignin Fractions Be Separated in a True Industrial Process?. Industrial & Engineering Chemistry Research, v. 60, n. 30, p. 10863-10881, AUG 4 2021. (19/19401-1)

RODRIGUES, JESSICA S.; FREITAS, AMANDA DE S. M.; LOPES, HENRIQUE S. M.; PIRES, ARIANE A. F.; LEMES, ANA PAULA; FERREIRA, MARYSTELA; BOTARO, VAGNER R.. Improvement of UV stability of thermoplastic starch matrix by addition of selected lignin fraction- Photooxidative degradation. International Journal of Biological Macromolecules, v. 230, p. 12-pg., 2023-01-07. (19/19401-1)

ALBUQUERQUE, AMANDA C.; RODRIGUES, JESSICA S.; DE FREITAS, AMANDA S. M.; MACHADO, GABRIEL T.; BOTARO, VAGNER R.. Renewable Source Hydrogel as a Substrate of Controlled Release of NPK Fertilizers for Sustainable Management of Eucalyptus urograndis: Field Study. ACS AGRICULTURAL SCIENCE & TECHNOLOGY, v. 2, n. 6, p. 10-pg., 2022-10-16. (19/19401-1)

RODRIGUES, JESSICA DE SOUZA; SENNA, ANDRE MARTINS; DE OLIVEIRA, CAROLINE TIROLLA; BOTARO, VAGNER ROBERTO. New methodology for separating lignin fractions: GPC on a preparative scale with stationary phase of hydrogel derived from cellulose acetate. INDUSTRIAL CROPS AND PRODUCTS, v. 166, AUG 2021. (19/19401-1)

DE FREITAS, AMANDA DE S. M.; RODRIGUES, JESSICA S.; MACIEL, CRISTIANE C.; PIRES, ARIANE A. F.; LEMES, ANA PAULA; FERREIRA, MARYSTELA; BOTARO, VAGNER R.. mprovements in thermal and mechanical properties of composites based on thermoplastic starch and Kraft Ligni. International Journal of Biological Macromolecules, v. 184, p. 863-873, AUG 1 2021. (19/19401-1, 19/15976-0)

DE FREITAS, AMANDA DE S. M.; RODRIGUES, JESSICA S.; BOTARO, VAGNER R.; LEMES, ANA PAULA; CRUZ, SANDRA ANDREA; WALDMAN, WALTER R.. Formation of craze-like pattern in polypropylene UV-induced surface cracking. JOURNAL OF POLYMER RESEARCH, v. 29, n. 12, p. 8-pg., 2022-12-01. (16/24936-3, 19/15976-0, 19/19401-1)

RODRIGUES, JESSICA S.; DE FREITAS, AMANDA DE S. M.; MACIEL, CRISTIANE C.; MENDES, SOPHIA F.; DIMENT, DARYNA; BALAKSHIN, MIKHAIL; BOTARO, VAGNER R.. Selection of kraft lignin fractions as a partial substitute for phenol in synthesis of phenolic resins: Structure-property correlation. INDUSTRIAL CROPS AND PRODUCTS, v. 191, p. 13-pg., 2023-01-01. (19/19401-1)

RODRIGUES, JESSICA S.; DE FREITAS, AMANDA DE S. M.; MACIEL, CRISTIANE C.; GUIZANI, CHAMSEDDINE; RIGO, DAVIDE; FERREIRA, MARYSTELA; HUMMEL, MICHAEL; BALAKSHIN, MIKHAIL; BOTARO, VAGNER R.. Selected Kraft lignin fractions as precursor for carbon foam: Structure-performance correlation and electrochemical applications. International Journal of Biological Macromolecules, v. 240, p. 13-pg., 2023-04-20. (19/19401-1)