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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Classification of beer by thermogravimetric and chemometric techniques

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Author(s):
Fernandes, Richard Perosa [1] ; Ekawa, Bruno [1] ; Ferreira, Laura Teofilo [1] ; Carvalho, Ana Carina Sobral [1] ; Teixeira Freire, Rafael [2] ; Caires, Flavio Junior [3]
Total Authors: 6
Affiliation:
[1] Sao Paulo State Univ UNESP, Inst Chem, Araraquara, SP - Brazil
[2] Inst Bioengn Catalonia, Signal & Informat Proc Sensing Syst, Barcelona - Spain
[3] Sao Paulo State Univ UNESP, Sch Sci, Bauru, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY; v. 147, n. 4, p. 3063-3069, FEB 2022.
Web of Science Citations: 0
Abstract

Thermogravimetric (TG) technique combined with partial least squares discriminant analysis (PLS-DA) was applied to distinguish five pilsner beers from different brands (Antarctica, Bohemia, Brahma, Budweiser and Imperio). Herein, we develop a TG methodology that use a small volume (40 mu L), and an analysis time of 25 min. The major gases evolved during the thermal decomposition were water, ethanol and carbon dioxide. Energy-dispersive X-ray spectrometer of the ashes detected the major constituents: oxygen, sodium, magnesium, silicon, phosphorus, sulfur, chlorine, potassium and calcium. TG and PLS-DA technique together were able to classify the five brands with a classification rate for the model of 97% with a confidence interval of 92-99%, achieving high sensitivity and specificity between the calibration, cross-validation and predicted results. (AU)

FAPESP's process: 17/14936-9 - Preparation, characterization and thermoanalytical studies of heterogeneous catalysts of double selenates of Mg/Co and Mg/Cu in biodiesel production using different oils
Grantee:Massao Ionashiro
Support Opportunities: Regular Research Grants
FAPESP's process: 13/09022-7 - Thermoanalytical studies, synthesis and characterization of the solid co-crystals of antibiotics (fluoroquinolones) with some co-formers
Grantee:Massao Ionashiro
Support Opportunities: Regular Research Grants
FAPESP's process: 18/24378-6 - Synthesis, characterization and thermoanalytical study of Valsartan, Candesartan Cilexetil and Olmesartan medoxomil co-crystals
Grantee:Flávio Junior Caires
Support Opportunities: Regular Research Grants