Food Science and Technology
URI permanente para esta coleçãohttps://thoth.dti.ufv.br/handle/123456789/12092
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Item Effects of coffee and cocoa as fermentation additives on sensory quality and chemical compositions of cigar tobacco leaves(Sociedade Brasileira de Ciência e Tecnologia de Alimentos, 2022-10-13) Hu, Wanrong; Zhou, Quanwei; Cai, Wen; Liu, Jie; Li, Pinhe; Hu, Dejun; Luo, Cheng; Li, DongliangExogenous additives applied for cigar tobacco leaves fermentation played an important role in sensory quality of cigar. In this study, effects of additives including coffee and cocoa on the quality of cigar tobacco leaves were explored. The changes of sensory quality, conventional chemical components, nonvolatile organic acids, and aroma compositions in tobacco leaves were studied. Results showed that the richness, mellowness and matureness of aroma, as well as the fluentness and sweetness of smoke in cigar were improved with the introduction of coffee or cocoa. According to chemical composition analysis, fermentation with coffee or cocoa increased the contents of alkaloids and sugar in tobacco leaves, which endowed the tobacco a relatively good performance on the sweetness and aroma richness. Besides, the decrease of citric acid, as well as the increase of saturated fatty acid and aroma components were found with additives, which was beneficial to improve the mellowness and aroma richness of cigar. It was suggested that coffee and cocoa exhibited positive effects on the chemical composition, especially increased the contents of sugar, saturated fatty acids and aromatic components, thus improving the sensory quality of tobacco leaves.Item Developed validation for simultaneous determination of three Di-caffeoylquinic acid derivatives from the Leaf of Eribotrya japonica Lindl. by HPLC-DAD(Sociedade Brasileira de Ciência e Tecnologia de Alimentos, 2021-08-13) Seon, Ho-Young; Kim, Hyun-Hee; Yim, Soon-HoThe aim of this study was to developed HPLC simultaneous analysis method for the determination of Caffeoylquinic acid isolated from the leaf of Eribotrya japonica Lindl. extract. The phenolic compounds in E. japonica leaves were isolated and identified by HPLC, NMR, Mass etc. The quantitative analysis was carried out HPLC-DAD using C18 column with gradient elution of water and acetonitrile at 280 nM for 60 min. The method was successfully validated by specificity, LOD (linearity, limit of detection), LOQ (limit of quantification), precision and recovery. The three phenolic compounds were isolated from E. japonica leaves including 5-Caffeoylquinic acid (5-CQA), 4-Caffeoylquinic acid (4-CQA) and 3-Caffeoylquinic acid (3-CQA). In a quantitative analysis of three phenolic compounds were 3-CQA 7.82-14.48 µg/mL, 4-CQA 3.75-12.58 µg/mL and 5-CQA 3.60-7.82 µg/mL using the standard chemicals, respectively. The developed HPLC validation method would be applicable for simultaneous quantitative analysis of phenolic compounds in E. japonica leaves extracts.Item Assessment of the caffeine-containing beverages available in the local markets, and development of a real energy drink based on the date fruit(Sociedade Brasileira de Ciência e Tecnologia de Alimentos, 2021) Mostafa, Heba SayedGlobally, tea, coffee, soft and energy drinks are daily consumed as a source of caffeine. Energy drinks gained a great public and scientific issues, thus this study assessed the caffeine content in some caffeine-containing beverages. Given the increasing demand for newly formulated healthy drinks, the date fruit (Phoenix dactylifera L. cv. Siwi) was used to develop a fruit-energy drink as an alternative for the energy drinks. Results displayed that the coffee addition even to 80 mg/250 mL, did not significantly altered the acidity of the final developed drink. It contained rapidly metabolized sugars of 27.86 g/250 mL without added sugar and was slightly neutral (pH = 6.04). The sensory assessment revealed that the added coffee (up to 320 mg/L) enhanced its aroma and taste but negatively affected the color. The high naturally occurring vitamins and minerals content and the gross energy; made this drink a super energy drink to fulfill the needs of athletes. Some of the tested local caffeine-containing beverages contained caffeine higher than those mentioned on the product label. On the other side, Turkish coffee brews contained 1.99-9.46 mg/g and the instant coffees had provided the highest ever caffeine (24.71 mg/g), such that their daily consumption should be alarmed.Item Sensory evaluation of “dulce de leche” with coffee and whey using different affective data analysis methods(Sociedade Brasileira de Ciência e Tecnologia de Alimentos, 2011-10) Ferreira, Larissa Oliveira; Pimenta, Carlos José; Pinheiro, Ana Carla Marques; Pereira, Patrícia Aparecida Pimenta; Santos, GabriellaThis study sought to evaluate the acceptance of “dulce de leche” with coffee and whey. The results were analyzed through response surface, ANOVA, test of averages, histograms, and preference map correlating the global impression data with results of physical, physiochemical and sensory analysis. The response surface methodology, by itself, was not enough to find the best formulation. For ANOVA, test of averages, and preference map it was observed that the consumers’ favorite “dulce de leche” were those of formulation 1 (10% whey and 1% coffee) and 2 (30% whey and 1% coffee), followed by formulation 9 (20% whey and 1.25% coffee). The acceptance of samples 1 and 2 was influenced by the higher acceptability in relation to the flavor and for presenting higher pH, L*, and b* values. It was observed that samples 1 and 2 presented higher purchase approval score and higher percentages of responses for the ‘ideal’ category in terms of sweetness and coffee flavor. It was found that consumers preferred the samples with low concentrations of coffee independent of the concentration of whey thus enabling the use of whey and coffee in the manufacture of dulce de leche, obtaining a new product.Item Desenvolvimento de formulações de biscoitos tipo cookie contendo café(Sociedade Brasileira de Ciência e Tecnologia de Alimentos, 2007-01) Rodrigues, Melissa de Abreu Andrade; Lopes, Geovana Silva; França, Adriana Silva; Motta, Silvana daEste trabalho teve como objetivo desenvolver formulações de biscoitos tipo cookie contendo café. Desenvolveram-se três formulações com inserção de café como: bebida tipo expresso, café solúvel e café torrado e moído, utilizando como base uma formulação americana adaptada aos ingredientes brasileiros e à inserção de café. A composição centésimal média (base seca) foi: 7% umidade, 70% carboidratos, 8% proteínas, 21% gorduras e 1% minerais, com valor calórico médio de 499 kcal.100 g -1 . A composição centesimal e o valor calórico observados foram similares a valores reportados para biscoitos cookie comercialmente disponíveis. A forma de inserção de café afetou as características sensoriais dos produtos, avaliados por metodologia descritiva de perfil de sabor e de textura. A Formulação 1 (bebida tipo expresso) apresentou valores inferiores para a intensidade dos atributos referentes à presença de rachaduras, fragmentação, presença de pontos escuros, aroma de café e queimado. A Formulação 2 (café solúvel) apresentou notas superiores de intensidade dos atributos de cor marrom, brilho, sabor amargo e de queimado, sabor residual de açúcar mascavo e crocância da borda e inferiores para concavidade. A Formulação 3 (café torrado e moído) apresentou valores superiores para a presença de pontos escuros. As três formulações apresentaram notas satisfatórias e equivalentes de aceitação por crianças.Item Café torrado e moído em embalagens inertizadas(Sociedade Brasileira de Ciência e Tecnologia de Alimentos, 2003-12) Alves, Rosa M. Vercelino; Mori, Emília E.; Milanez, Cibele R.; Milanez, Cibele R.; Padula, MarisaAvaliou-se o efeito das propriedades de barreira de materiais de embalagem e das condições do enchimento em equipamento flow pack vertical (com e sem injeção de nitrogênio), sobre a vida útil de café torrado e moído. Avaliou-se três tipos de materiais de embalagem de estrutura composta de um laminado de poliéster metalizado (PETmet) e polietileno de baixa densidade linear (PEBDL) que diferiam na camada de metalização (TPO 2 de 0,5; 2,9 e 5,5cm 3 (CNTP)/m 2 /dia a 25oC, a seco e 1atm). Após formação, enchimento e termossoldagem das embalagens, as amostras foram estocadas a 25±2oC /65±3%UR. Durante a estocagem observou-se redução na concentração de oxigênio residual do espaço livre das embalagens devido ao consumo em reações de oxidação, o que causou alterações sensoriais no produto e limitou sua vida útil. Os resultados obtidos sugerem vida útil para o café de, no mínimo, 6 meses a 25°C/65%UR em embalagens inertizadas (2 a 3% de O 2 residual em um espaço livre de, em média, 680mL a 25°C e 0,92atm), enquanto no sistema sem injeção de nitrogênio a vida útil foi de 3 meses. Também verificou-se que materiais de embalagem com taxas de permeabilidade ao oxigênio próximas aos dos materiais avaliados não diferem no nível de proteção oferecida a café torrado e moído até 6 meses de estocagem em embalagem inertizada.Item Technological properties of precooked flour containing coffee powder and rice by thermoplastic extrusion(Sociedade Brasileira de Ciência e Tecnologia de Alimentos, 2013-01) Silva, Reginaldo Ferreira da; Pereira, Rosemary Gualberto Fonseca Alvarenga; Ascheri, José Luis Ramirez; Ascheri, Diego Palmiro RamirezAlthough Brazil is a country of tradition in both the production and consumption of coffee, the most of the coffee is consumed as a beverage, which reduces greatly the competitiveness on international market, for reducing the chances of supplying the product under other forms of consumption. Owing to that, the aim of this study was developing a precooked mixed flour containing coffee powder and rice for use in coffee flavored products. Mixtures of rice and coffee in the proportions of 900:100, 850:150 and 800:200 g, respectively, were processed in a single screw extruder (Brabender DS-20, Duisburg, German) and the effect of the extrusion process on the variables moisture content (16%, 18% and 20%) and temperature in the third extruding zone (140 °C, 160 °C and 180 °C) was studied. The results for expansion index ranged from 2.91 to 11.11 mm in diameter; the water absorption index from 4.59 to 6.33 g gel/g sample and the water solubility index varied from 4.05% to 8.57%. These results showed that, despite coffee powder influenced the variables studied, the expanded product after milling resulted in a extruded mixture with good absorption and water solubility indices, which favors the use of the precooked mixed flour for human consumption.Item Aceitabilidade de biscoitos e bolos à base de arroz com café extrusados(Sociedade Brasileira de Ciência e Tecnologia de Alimentos, 2009-12) Silva, Reginaldo Ferreira da; Ascheri, José Luis Ramirez; Pereira, Rosemary Gualberto Fonseca Alvarenga; Modesta, Regina Célia DellaO objetivo deste trabalho foi avaliar a granulometria de farinha do trigo e de farinhas pré-cozidas por extrusão obtidas da mistura de arroz com pó de café (15 e 20%), bem como a aceitabilidade de biscoitos e bolos elaborados a partir da adição de 20 e 30% da farinha pré-cozida na mistura da massa (trigo). Os resultados obtidos mostraram que as farinhas extrusadas apresentaram maior granulometria que a farinha de trigo; à medida que se aumentou o percentual de farinha pré-cozida na mistura com o trigo, também aumentou a granulometria. Não houve diferença significativa entre as amostras tratadas com 15 e 20% de farinha pré-cozida quanto à preferência sensorial de aroma, textura, sabor e impressão global avaliados em bolos. Entretanto, os biscoitos elaborados com a farinha pré-cozida com 15% de pó de café na mistura com arroz apresentaram maior preferência para aroma e textura ao serem comparados com aqueles com 20%; a farinha pré-cozida de pó de café com arroz pode ser utilizada como ingrediente na mistura de bolos, biscoitos e outros produtos alimentícios em até 30%.