New methods for determination of carboxylic acids, amino acids and polyols in vinasse of the manufacturing process of ethanol

• Grant number: 14/23846-5
• Support Opportunities: Program for Research on Bioenergy (BIOEN) - Regular Program Grants
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
• Principal Investigator: Nelson Ramos Stradiotto
• Grantee: Nelson Ramos Stradiotto
• Host Institution: Instituto de Química (IQ). Universidade Estadual Paulista (UNESP). Campus de Araraquara. Araraquara , SP, Brazil

Abstract

The full energy utilization of sugar cane should be linked with the current biorefinery concept, which allows the conversion of biomass, besides the production of sugar and ethanol in various chemical products with high added value. Sugar and ethanol plants have on their plants, two residues (bagasse and vinasse) that can generate products with high added value. These wastes, bagasse has been used in the production of electricity and recent research shows its viability in the production of second generation ethanol. However, vinasse until now, has been used only as fertilizers in their own plantations cane sugar. Vinasse is a product of the distillation of ethanol being produced in a proportion which may range 11 to 18 liters per liter of distilled alcohol. This residue, consisting mainly of polyols, carboxylic acids and amino acids in significant concentrations, has attracted little attention as meaning transform vinasse as a significant industrial importance. The development of new methods for the determination of compounds with high added value is essential for the sugarcane mills can reclaim what is now considered waste. Among these new methods of determination, those using electrochemical sensors and electrochemical detectors coupled with separation techniques has distinguished itself by presenting high sensitivity, great selectivity, speed of analysis, which is very attractive options for the analysis of these compounds. For this reason, the aim of this project is to develop new methods for determination of compounds of high value added originating from vinasse of cane sugar. Thus, the project has the following objectives: a) development of new electrochemical sensors based on molecularly imprinted polymers anchored on graphene for determination of polyols in vinasse and b) development of new electrochemical sensors based on metallic nanoparticles anchored on graphene, coupled the chromatographic technique for determining carboxylic acids and amino acids vinasse. (AU)

Scientific publications

(10)

(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)

SEDENHO, GRAZIELA C.; LEE, PATRICIA T.; TOH, HER SHUANG; SALTER, CHRIS; JOHNSTON, COLIN; STRADIOTTO, NELSON R.; COMPTON, RICHARD G.. The Electro-Oxidation of Lactic Acid at Platinum Microparticles and Polycrystalline Platinum Electrode. International Journal of Electrochemical Science, v. 11, n. 3, p. 2166-2176, MAR 2016. (14/10391-0, 14/23846-5)

BELUOMINI, MAISA AZEVEDO; DA SILVA, JOSE L.; SEDENHO, GRAZIELA CRISTINA; STRADIOTTO, NELSON RAMOS. D-mannitol sensor based on molecularly imprinted polymer on electrode modified with reduced graphene oxide decorated with gold nanoparticles. Talanta, v. 165, p. 231-239, APR 1 2017. (14/23846-5)

DA SILVA, JOSIEL JOSE; DA SILVA, BIANCA FERREIRA; BOLDRIN ZANONI, MARIA VALNICE; STRADIOTTO, NELSON RAMOS. ample preparation and antibiotic quantification in vinasse generated from sugarcane ethanol fuel productio. Journal of Chromatography A, v. 1666, MAR 15 2022. (16/06352-4, 14/23846-5)

ROMEIRO AZEVEDO, VICTOR HUGO; DA SILVA, JOSE LUIZ; STRADIOTTO, NELSON RAMOS. Silver oxide nanoparticles in reduced graphene oxide modified electrode for amino acids electrocatalytic oxidation. JOURNAL OF ELECTROANALYTICAL CHEMISTRY, v. 845, p. 57-65, JUL 15 2019. (14/23846-5)

DA SILVA, JOSE LUIZ; BELUOMINI, MAISA AZEVEDO; SEDENHO, GRAZIELA CRISTINA; STRADIOTTO, NELSON RAMOS. Determination of amino acids in sugarcane vinasse by ion chromatographic using nickel nanoparticles on reduced graphene oxide modified electrode. Microchemical Journal, v. 134, p. 374-382, SEP 2017. (14/23846-5)

FREITAS, P. V.; DA SILVA, D. R.; BELUOMINI, M. A.; DA SILVA, J. L.; STRADIOTTO, N. R.. Determination of Phenolic Acids in Sugarcane Vinasse by HPLC with Pulse Amperometry. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY, v. 2018, p. 10-pg., 2018-01-01. (14/23846-5)

FREITAS, P. V.; DA SILVA, D. R.; BELUOMINI, M. A.; DA SILVA, J. L.; STRADIOTTO, N. R.. Determination of Phenolic Acids in Sugarcane Vinasse by HPLC with Pulse Amperometry. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY, 2018. (14/23846-5)

BELUOMINI, MAISA AZEVEDO; DA SILVA, JOSE LUIZ; DE SA, ACELINO CARDOSO; BUFFON, EDERVALDO; PEREIRA, THULIO CESAR; STRADIOTTO, NELSON RAMOS. Electrochemical sensors based on molecularly imprinted polymer on nanostructured carbon materials: A review. JOURNAL OF ELECTROANALYTICAL CHEMISTRY, v. 840, p. 343-366, MAY 1 2019. (14/23846-5)

SEDENHO, GRAZIELA C.; DA SILVA, JOSE LUIZ; BELUOMINI, MAISA A.; DE SA, ACELINO C.; STRADIOTTO, NELSON R.. Determination of Electroactive Organic Acids in Sugarcane Vinasse by High Performance Anion-Exchange Chromatography with Pulsed Amperometric Detection Using a Nickel Nanoparticle Modified Boron-Doped Diamond. ENERGY & FUELS, v. 31, n. 3, p. 2865-2870, MAR 2017. (14/23846-5, 13/09833-5)

BELUOMINI, MAISA AZEVEDO; DA SILVA, JOSE LUIZ; STRADIOTTO, NELSON RAMOS. Amperometric determination of myo-inositol by using a glassy carbon electrode modified with molecularly imprinted polypyrrole, reduced graphene oxide and nickel nanoparticles. Microchimica Acta, v. 185, n. 3, MAR 2018. (14/23846-5)