Advanced search
Start date
Betweenand

Utilization of chemometric methods in comprehensive two-dimensional gas chromatography for evaluate cocoa, its derivatives and carob

Grant number: 12/14695-8
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): October 01, 2012
Effective date (End): November 30, 2016
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
Principal Investigator:Ronei Jesus Poppi
Grantee:Luciana Fontes de Oliveira
Home Institution: Instituto de Química (IQ). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
Associated scholarship(s):14/24724-0 - Chemometric methods applied in comprehensive two-dimensional gas chromatography of chocolates, BE.EP.DR

Abstract

This project aims to explore and expand the possibilities of chemometrics applied to the comprehensive two-dimensional gas chromatography with solid phase microextraction and detection by mass spectrometry for studies related to quality of cocoa, cupuaçu and derivatives. Exploratory studies will be conducted using chemometric tools for multidimensional pattern recognition for evaluation of the types of cocoa and recognition of potential markers of quality. Also, it is intended to use multidimensional multivariate calibration methods for studies of correlations between results obtained by Quantitative Descriptive Analysis and GCxGC-qMS. Finally, exploratory studies will be conducted using chemometric tools for multidimensional pattern recognition for the quality assessment of cupuaçu. It is hoped that the results of this thesis provide support to increase the knowledge about the volatiles in cocoa, cupuaçu and derivatives and their relationship to type and quality of the sample.

Scientific publications
(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, LUCIANA F.; BRAGA, SORAIA C. G. N.; AUGUSTO, FABIO; HASHIMOTO, JULIANA C.; EFRAIM, PRISCILLA; POPPI, RONEI J. Differentiation of cocoa nibs from distinct origins using comprehensive two-dimensional gas chromatography and multivariate analysis. Food Research International, v. 90, p. 133-138, DEC 2016. Web of Science Citations: 13.
OLIVEIRA, LUCIANA F.; BRAGA, SORAIA C. G. N.; FILGUEIRAS, PAULO R.; AUGUSTO, FABIO; POPPI, RONEI J. Assessment of robustness on analysis using headspace solid-phase microextraction and comprehensive two-dimensional gas chromatography through experimental designs. Talanta, v. 129, p. 303-308, NOV 1 2014. Web of Science Citations: 6.
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
OLIVEIRA, Luciana Fontes de. Utilization of chemometrics methods in comprehensive two dimensional gas chromatography for evaluate cocoa, its derivatives and carob. 2016. Doctoral Thesis - Universidade Estadual de Campinas, Instituto de Química.

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