H
Helena Redigolo Pezza
Researcher at Sao Paulo State University
Publications - 111
Citations - 1980
Helena Redigolo Pezza is an academic researcher from Sao Paulo State University. The author has contributed to research in topics: Detection limit & Diffuse reflectance infrared fourier transform. The author has an hindex of 21, co-authored 109 publications receiving 1549 citations. Previous affiliations of Helena Redigolo Pezza include University of São Paulo.
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Relationship Between the Different Aspects Related to Coffee Quality and Their Volatile Compounds
TL;DR: This paper provides, for the first time, an overview of different aspects related to the quality of coffee beans and their volatile fractions: species/cultivars, geographic origins, bean defects, and types of beverages, processing, roasting, and storage.
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An overview of the main foodstuff sample preparation technologies for tetracycline residue determination.
Michael Pérez-Rodríguez,Michael Pérez-Rodríguez,Roberto Gerardo Pellerano,Leonardo Pezza,Helena Redigolo Pezza +4 more
TL;DR: This review seeks to provide an updated overview of the main trends in sample preparation for the determination of tetracycline residues in foodstuffs, which involve the use of less hazardous solvents and smaller sample sizes compared to traditional methods.
Journal ArticleDOI
Coffee Adulteration: More than Two Decades of Research.
TL;DR: There still remains a lack of a suitably sensitive and widely applicable methodology able to take into account the various different aspects of adulteration, considering coffee varieties, defective beans, and external agents.
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Simultaneous determination of renal function biomarkers in urine using a validated paper-based microfluidic analytical device.
Eduardo Luiz Rossini,Maria Izabel Milani,Emanuel Carrilho,Leonardo Pezza,Helena Redigolo Pezza +4 more
TL;DR: Under optimum conditions, obtained through chemometrics, the concentrations of the analytes showed good linear correlations with the effective intensities, and the method presented satisfactory repeatability.
Journal ArticleDOI
Authenticity of roasted coffee using1H NMR spectroscopy
Marcos Vinícius de Moura Ribeiro,Nivaldo Boralle,Helena Redigolo Pezza,Leonardo Pezza,Aline Theodoro Toci +4 more
TL;DR: In this article, a fast and effective technique using 1H NMR to check for adulteration in roasted coffee was described, for the first time, using a set of commercial Brazilian arabica blends produced from good cup quality beans and four adulterants (corn, coffee husks, barley, and soybean).