Winston Pinheiro Claro GomesUniversity of São Paulo | USP · Center of Nuclear Energy in Agriculture (CENA)
Winston Pinheiro Claro Gomes
Master of Science
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15
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Publications (15)
Green coffee is the hulled coffee bean, rich in chemical compounds indicative of quality before roasting, making the classification special or traditional. This work aimed to determine compounds in green coffee beans and find the differentiation of green coffee beans into special or traditional ones through chemometrics. For that, the levels of phe...
The objective of this work was to determine the influence of some analytical parameters in craft and industrial beers characterization and to search for possible correlations between these parameters by use of chemometrics. For this purpose, the levels of color and bitterness were quantified by spectrophotometry and the concentrations of acetaldehy...
The objective of this study was the application of green coffee bean flour in gluten-free cakes with different percentages (4, 8 and 15% (w/w)), to evaluate the optimal value for fortification, and the products were characterized based on their centesimal composition and bioactive compounds (caffeine and total phenolic compounds). Significant diffe...
Non-destructive techniques aided by machine learning models are widely implemented in food analysis. To discriminate between 'special' and 'traditional' classes of green coffee beans, an advanced multispectral imaging technique based on reflectance and autofluorescence data was employed in combination with four machine learning algorithms (SVM, RF,...
Sulphonamides are a group of synthetic antibiotics used specially in veterinary medicine. Among the procedures employed in the sample preparation for sulphonamide determination are liquid-liquid extraction (LLE) and solid-phase extraction (SPE) that use large volumes of organic solvents. Hence, a clean procedure was developed based on preconcentrat...
The present study aimed to evaluate the formation of volatile organic compounds (VOCs) during the fermentation process of three different craft beers, using gas chromatography with headspace sampling. The production of VOCs, which are largely responsible for the flavors of the drink, makes up unique organoleptic characteristics for each beer. In th...
Due to the exaggerated worldwide consumption of alcoholic beverages the development of special fermented beverages with low alcohol content or without alcohol is an interesting market niche. Thus, this study aims to quantify the ethanol content of commercial fermented beverages labelled “low alcohol content” or “without alcohol” and evaluate it in...
One of the biggest hurdles faced by the wine industry is the disposal of residual biomass generated after vinification. Although this residue is biodegradable, it constitutes a potential source of environmental pollutants. To alleviate this issue, this biomass may be used in alternative applications; for example, it may be transformed into an enric...
Resumo O hidromel é uma bebida alcoólica obtida a partir da diluição de mel e água em diferentes proporções e que através da levedura se dá o processo fermentativo alcoólico de um corpo orgânico convertendo para álcool etílico, dióxido de carbono e liberação de calor. Assim, o objetivo principal foi realizar a análise genética de leveduras oriundas...
A preocupação das nações em reduzir a dependência de combustíveis fósseis incentiva a busca por fontes renováveis, como o etanol de segunda geração (2G). Esta pesquisa objetivou avaliar a fermentação de leveduras na presença de xilose, pentose presente no mosto de etanol 2G. Cepas de leveduras conservadas a-80ºC foram reativadas e multiplicadas em...
A cerveja é uma bebida oriunda da fermentação alcoólica e, devido ao metabolismo da levedura e os componentes presentes no mosto, além da produção do etanol, ocorre também a produção de compostos orgânicos voláteis (VOC) que compõem características organolépticas únicas para cada tipo de cerveja produzida. Assim, o presente trabalho teve como objet...
A ora-pro-nóbis é uma Planta Alimentícia Não Convencional (PANC), que possui alto teor de cálcio e fibras, atividades associadas ao sistema imune, propriedades de absorção de água e capacidade funcional de redução de colesterol ruim (LDL). Assim, o objetivo principal foi criar um produto de panificação isento de glúten, utilizando-se da farinha de...
O mercado das cervejas artesanais encontra-se em plena expansão e, nesse cenário, o Brasil se apresenta como um dos países mais inovadores do segmento. Os compostos orgânicos voláteis estão presentes nas cervejas artesanais como os grandes responsáveis pelo aroma e sabor do produto e, portanto, a determinação destes é imprescindível tanto para anál...