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 280
- Downloads 0
CHEMICAL AND PHYSICOCHEMICAL CHANGES WITH SUCCESSIVE APPLICATIONS OF RAW DOMESTIC SEWAGE AS A FINAL DISPOSAL ALTERNATIVE OF FORAGE CULTIVATION
Considering the significant expenses with fertilizer and irrigation, the use of wastewater in fertirrigation has been studied as an alternative, since it can supply part of the water demand and provide nutrients to the p...
PHYSICAL AND CHEMICAL CHARACTERIZATION OF INDUSTRIAL EFFLUENTS OF SORVETES AFTER APPLICATION OF FLOCULANTES
The dairy industry plays a major role both economically and socially in Brazil. However, it generates a significant volume of effluent that presents high organic load. Because of this, a proper treatment is required for...
albumin nanoparticles: an interesting alternative for the controlled release of drugs
Nanotechnology presents a tool, which controls the nanoscale matter to change its physico chemical properties. The Nanotechnology application is varied, observing an increase in the pharmaceutical area. There are several...
MODIFICATION OF EXPANDED PERLITE WITH ORTHOPHENANTHROLINE FOR FORMATION OF ACTIVE SITES FOR ACID DYES: PREPARATION AND CHARACTERIZATION
The expanded perlite (aluminosilicate naturally acid) has been modified with orthophenanthroline (Lewis base). The material was characterized by TG/DTA, XRD and IR. The thermogravimetric curve of the modified expanded pe...
THE EFFECTS OF ILLUMINATION ON THE EARLY DEVELOPMENT OF AMPHIBIANS (AMPHIBIA: ANURA AND CAUDATA)
The effects of illumination on the early development of four amphibian species — Lissotriton vulgaris (Linnaeus, 1758), Triturus cristatus (Laurenti, 1768), Rana arvalis (Nilsson, 1842), and R. temporaria (Linnaeus, 1758...