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Determination of sugar in bagasse and straw of cane sugar by high performance liquid chromatography with electrochemical detection using electrode modified carbon nanotubes with metal oxides

Grant number: 11/19289-5
Support Opportunities:Scholarships in Brazil - Doctorate
Start date: June 01, 2012
End date: November 29, 2015
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
Principal Investigator:Nelson Ramos Stradiotto
Grantee:Acelino Cardoso de Sá
Host Institution: Instituto de Química (IQ). Universidade Estadual Paulista (UNESP). Campus de Araraquara. Araraquara , SP, Brazil
Associated scholarship(s):14/15557-3 - Determination of carbohydrates in sugarcane bagasse employing a voltammetric electronic tongue formed by nickel oxy-hydroxide/MWCNT modified electrodes, BE.EP.DR

Abstract

The biomass formed by the cane-sugar, is a byproduct of the process of producing sugar and ethanol. In Brazil new applications for the bagasse have been developed, among them we can highlight the production of biofuels (ethanol) second generation. The second-generation ethanol from biomass, bagasse and cane straw, is a way to significantly increase fuel production, The development of processes for the production of second generation ethanol from biomass of cane sugar involves the optimization of an integrated, multi-step: pretreatment, hydrolysis and fermentation of hydrolysates. To evaluate the effectiveness of several alternative processes, is an accurate characterization of key sugars of biomass for conversion to second-generation ethanol. Their work on sugar analysis by HPLC using electrochemical detectors stand out by offering better conditions such as sensitivity, selectivity, detectability and wide applicability. Considering the great importance of the determination of sugars in biomass together with the need to develop new methods for determining rapid, sensitive and selective, this project aims to develop new methodologies for characterizing the composition of sugars for conversion of biomass sugar cane ethanol in the second generation using the technique of high performance liquid chromatography coupled with an electrochemical detector. To achieve the proposed objective, electrochemical detectors should be developed chemically modified electrodes based on carbon nanotubes containing metal oxides as nickel oxide, copper oxide and cobalt oxide for the determination of sugars as arabinose, galactose, glucose, mannose and xylose from biomass of cane (bagasse + straw) for the generation of second-generation ethanol. (AU)

News published in Agência FAPESP Newsletter about the scholarship:
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Scientific publications (5)
(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 SA, ACELINO CARDOSO; CIPRI, ANDREA; GONZALEZ-CALABUIG, ANDREU; STRADIOTTO, NELSON RAMOS; DEL VALLE, MANEL. Resolution of galactose, glucose, xylose and mannose in sugarcane bagasse employing a voltammetric electronic tongue formed by metals oxy-hydroxide/MWCNT modified electrodes. SENSORS AND ACTUATORS B-CHEMICAL, v. 222, p. 645-653, . (12/00258-5, 11/19289-5, 14/15557-3)
DE SA, ACELINO CARDOSO; CIPRI, ANDREA; GONZALEZ-CALABUIG, ANDREU; STRADIOTTO, NELSON RAMOS; DEL VALLE, MANEL. Multivariate Determination of Total Sugar Content and Ethanol in Bioethanol Production Using Carbon Electrodes Modified with MWCNT/MeOOH and Chemometric Data Treatment. Electroanalysis, v. 30, n. 8, p. 1688-1697, . (12/00258-5, 11/19289-5, 14/15557-3)
DE SA, ACELINO C.; PAIM, LEONARDO L.; STRADIOTTO, NELSON R.. New Detector Based on Composite of Carbon Nanotubes with Nanoparticles of Cobalt Oxide for Carbohydrates Analysis by HPLC with Reverse Pulsed Amperometric Detection. Journal of the Brazilian Chemical Society, v. 31, n. 3, p. 456-466, . (11/19289-5, 14/15557-3, 12/00258-5)
DE SA, ACELINO CARDOSO; PAIM, LEONARDO LATARO; STRADIOTTO, NELSON RAMOS. Sugars Electrooxidation at Glassy Carbon Electrode Decorate with Multi-Walled Carbon Nanotubes with Nickel Oxy-Hydroxide. International Journal of Electrochemical Science, v. 9, n. 12, p. 7746-7762, . (12/00258-5, 11/19289-5, 11/20416-1)
DE SA, ACELINO CARDOSO; SEDENHO, GRAZIELA CRISTINA; PAIM, LEONARDO LATARO; STRADIOTTO, NELSON RAMOS. New Method for Carbohydrates Determination in Sugarcane Bagasse by HPAEC-RPAD Using Glassy Carbon Electrode Modified with Carbon Nanotubes and Nickel Nanoparticles. Electroanalysis, v. 30, n. 1, p. 128-136, . (12/00258-5, 11/19289-5, 14/15557-3)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)