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Sweet-taste chemoreception of D- and L-arabinose and other chiral moleculesSiertsema, Rachel W. January 1998 (has links)
No description available.
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Intensity-time relationships in sweetnessLatymer, Z. January 1982 (has links)
No description available.
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The effects of non-nutritive sweeteners in Florence’s Homestyle Cha-ChaBoone, Leslie January 1900 (has links)
Master of Science / Department: Food Science / J. Scott Smith / Non-nutritive sweeteners are alternative sweeteners that provide the taste of sweetness
without a caloric contribution. In this Florence’s HomeStyle Cha-Cha study, aspartame,
acesulfame K, sodium saccharin, and neotame were evaluated as a substitute for sucrose in the
formulation. These sweeteners were used at their recommended equivalency levels to match the
sweetness potency level to that of sucrose. Because they are more potent than sucrose, minimum
amounts were needed to replace sucrose, and the remaining amounts were filled with
maltodextrin. Using maltodextrin as bulk filler is common practice in the industry when
replacing sucrose with a non-nutritive sweetener. This study evaluated the quality of the finished
product in determining which non-nutritive sweetener had similar taste, aroma, and density
qualities as the control, which was Cha-Cha sweetened with sucrose. The results of the
evaluations indicated that Cha-Cha sweetened with acesulfame K was more similar to the control
than the other non-nutritive sweeteners. Of the three taste characteristics evaluated for their
degree of intensity, sweetness, saltiness, and bitterness, the acesulfame K sweetened treatment
was closer to the control. In the GC/MS analysis in characterizing the volatile aroma compounds,
acesulfame K contained all the aroma compounds with smaller differences in concentration than
the other experimental treatments. In the density evaluation, the experimental treatments were
similar to the control treatment. In conclusion, Florence’s HomeStyle Cha-Cha sweetened with
acesulfame K is similar in quality to the sucrose-sweetened control.
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Caracterização e avaliação sensorial de bebida preparada com achocolatado em pó, adoçada com diferentes edulcorantes / Characterization and sensory evaluation of chocolate milk powder, sugared with different sweetenersPaixão, Juliana Alves, 1989- 04 April 2014 (has links)
Orientador: Helena Maria André Bolini / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia de Alimentos / Made available in DSpace on 2018-08-24T20:52:35Z (GMT). No. of bitstreams: 1
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Previous issue date: 2014 / Resumo: A exigência por dietas controladas têm demonstrado um crescimento exacerbado, sendo que dentre elas destacam-se as dietas com redução calórica e restrição de açúcares, com intuito de prevenir doenças como a obesidade, além da busca pelo emagrecimento e de uma estética corporal "perfeita". Em função do aumento da procura por produtos dessa natureza, além da ampla aceitação de achocolatados em pó apresentadas pelo mercado consumidor, buscou-se o desenvolvimento de um alimento que atendesse às necessidades e preferências dos consumidores. Diante disso, o presente estudo objetivou formular diferentes amostras de bebida preparada com achocolatado em pó, contendo leite em pó integral e desnatado em duas diferentes temperaturas de consumo (6ºC e 45ºC), já apresentadas em outros estudos com bebidas solúveis, contendo cinco diferentes edulcorantes (Aspartame, Neosucralose (blend neotame, sucralose e assessulfame-K), Neotame, Stévia reb A 95% e Sucralose), os quais foram utilizados como substitutos da sacarose com o intuito de se obter um produto final com uma considerável redução calórica e semelhante sensorialmente a sacarose. As concentrações ideais de chocolate e sacarose foram determinadas através do teste de escala-do-ideal. As doçuras equivalentes foram determinadas utilizando-se estimação de magnitude e o poder edulcorante foi obtido através da Lei de Stevens. Visando a caracterização dos produtos formulados, foi realizado o teste sensorial descritivo. Conduziu-se uma Análise Descritiva Quantitativa com equipe treinada composta de 12 provadores, os quais avaliaram 17 termos descritores durante sessões individuais de análise. Para o teste tempo-intensidade foram analisados os atributos considerados mais relevantes (estímulo doce e amargo) para análise de bebida preparada com achocolatado em pó em função do tempo. Para que fosse possível analisar a opinião dos consumidores em relação às características sensoriais do produto foi realizada a avaliação afetiva através de teste de aceitação com 120 consumidores potenciais da bebida, onde os produtos foram estudados nas temperaturas de 6ºC e 45ºC, os quais foram avaliados quanto à aparência, aroma, sabor, amargor, textura, impressão global e intenção de compra. Na realização do estudo tempo intensidade para o estímulo doce, as amostras que apresentaram maior intensidade e duração nesse estímulo foram as amostras contendo neosucralose e sucralose. Quanto ao tempo-intensidade para o estímulo amargo a amostra preparada com neosucralose destacou-se quanto a intensidade e duração desse estímulo, caracterizando, o gosto amargo e o gosto residual amargo. Segundo os resultados encontrados, de uma forma geral a substituição da sacarose por sucralose e aspartame seria bem sucedida. Torna-se importante a realização de estudos sensoriais, já que produtos de diferentes matrizes podem manifestar-se de formas diferentes / Abstract: The requirement for controlled diets have demonstrated an overgrowth, and among them there stand out the calorie reduction and restriction of sugars, in order to prevent diseases such as obesity and pursuit of thinness and an aesthetic body "perfect". Due to the increased demand for such products and therefore this increased market demand, we sought to develop a food that meets the needs and preferences of consumers. Therefore, this study aimed to formulate different samples of chocolate milk beverage containing whole and skimmed milk powder at two different temperatures of consumption (6 º C and 45 º C ), already presented in other studies with soluble beverages, containing five different sweeteners ( Aspartame, Neosucralose ( blend neotame , sucralose and assessulfame -K ) , neotame , Stevia reb A 95% sucralose ) , which were used as substitutes for sucrose in order to obtain a final product with a considerable calorie reduction and the like sensory sucrose. The optimal concentrations of chocolate and sucrose were determined with the Just- About- Right scale. Equivalent sweetness was determined using magnitude estimation and sweetening power was obtained by Stevens Law. Aiming the characterization of formulated products, the descriptive sensory test was performed. The Quantitative Descriptive Analysis was conducted with trained team of 12 tasters who defined 17 terms descriptors during individual sessions of analysis. To the time - intensity test were deemed most relevant attributes (sweet and bitter stimulus) for chocolate milk beverage for analysis with chocolate beverage powder as a function of time were analyzed. To make possible to analyze consumer opinion regarding sensory characteristics was performed acceptance with 120 potential consumers of the drink , the products were studied at temperatures of 6 ° C and 45 ° C test, which were evaluated appearance, odor , flavor, bitterness , texture, overall impression and purchase intent . In relation the time intensity study for sweet stimulus, samples with greater intensity and duration in this stimulus were samples containing neosucralose and sucralose. In relation the time intensity study for sweet stimulus, samples with greater intensity and duration in this stimulus were samples containing neosucralose and sucralose. Regarding the time - intensity to the bitter stimulus, samples prepared with neosucralose stood out in relation intensity and duration for this stimulus, featuring the bitter taste and residual bitter taste. According to the results, in general the substitution of sucrose by sucralose and aspartame would be successful. It is important to undertake sensory studies, since products of different matrices can manifest itself in different ways / Mestrado / Consumo e Qualidade de Alimentos / Mestra em Alimentos e Nutrição
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Relationship between artificially sweetened and sugar-sweetened cola beverage consumption during pregnancy and preterm delivery in a multi-ethnic cohort: analysis of the Born in Bradford cohort studyPetherick, E.S., Goran, M.I., Wright, J. 14 November 2013 (has links)
No / The aim of this study was to investigate the relationship between the intake of sugar-sweetened (SS) and artificially sweetened (AS) cola beverages during pregnancy and the risk of preterm delivery (PTD). At baseline (2007–2010), 8914 pregnant women were recruited to the Born in Bradford birth cohort study at 24–28 weeks of pregnancy. Women completed a questionnaire describing their health and lifestyle behaviours, including their consumption of AS and SS cola beverages reported as cups per day, which were then linked to maternity records. The relationship between SS and AS cola beverage consumption was examined using logistic regression analyses. No relationship was observed between daily AS cola beverage consumption and PTD. Women who drank four cups per day of SS cola beverages had higher odds of a PTD when compared with women who did not consume these beverages daily. We conclude that high daily consumption of SS cola beverages during pregnancy is associated with increases in the rate of PTD.
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