QUALITATIVE ANALYSIS OF THE COMPOSITION NON-VOLATILE BRAZILIAN WHOLE GRAPE JUICES USING QEXACTIVE™ (HYBRID QUADRUPOLE-ORBITRAP MASS SPECTROMETER) AND PRINCIPAL COMPONENT ANALYSIS (PCA)
Journal Title: Periódico Tchê Química - Year 2017, Vol 14, Issue 27
Abstract
The main constituents of grape juice are non-volatile compounds and are responsible, in most cases, the organoleptic characteristics of the product, particularly flavor and color, attributes related to quality and acceptance product by consumers. The aim of this paper was to study, in a qualitative way, the non-volatile compounds of Brazilian whole grape juices using QExactive ™ (Hybrid Quadrupole-Orbitrap Mass Spectrometer) and principal component analysis (PCA). With QExactive™, high resolution and precision equipment, it was possible to identify organic acids, phenolic acids and certain amino acids in the samples. The PCA proved to be an important tool, because through it, it was possible to obtain information about the group juices studied correlating them with the compounds identified in QExactive™.
Authors and Affiliations
Andréa Aparecida Ribeiro ALVES
Keywords
Related Articles
- EP ID EP252178
- DOI -
- Views 262
- Downloads 0
CHIA SEEDS (Salvia hispanica L.) AS AN AGENT IN THE PREVENTION, TREATMENT AND CONTROL OF SOME CHRONIC DISEASES: A REVIEW
The seed of Chia (Salvia hispanica L.), originating in Mexico, is included in the cereals group, is considered a functional food. Its physicochemical composition and nutritional properties make it a significant source of...
LOST WATER VOLUME IN WATER SUPPLY SYSTEM, IN NORTH AND CENTRAL WEST REGION
Due to the events of the last years, when, mainly the Southeast region of Brazil has experienced one of the worst periods of water shortage, there has been a process of national awareness for the need of care with the qu...
REVIEW OF CONTAMINATION IN CEMETERY SOIL BY CEMETERY SLURRY
The cemeteries have been present in the culture for many centuries. However, knowledge of the potential that is reported to contaminate the environment is more recent. Substances generated in the decomposition of human b...
USE OF MONTE CARLO SIMULATIONS FOR THE CALCULATION OF THE UNCERTAINTY ESTIMATE IN THE ELECTROCHEMICAL DETECTION OF URIC ACID IN PLASMA SAMPLES
This work presents a low cost, simple and adequately reliable electrochemical alternative for the determination of uric acid in human serum in comparison to the enzymatic colorimetric reference method. The quality of the...
IDEAS OF STUDENTS ON THE ATOMISTIC NATURE OF MATTER
The alternative concepts movement that emerged in the 1970s continues to be highly relevant in the teaching of sciences, particularly chemistry, given that it can be the starting point for teachers to revisit their pedag...