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Chocolate is a food that is craved by many in the world and healthy chocolates have become a current topic in the healthy eating trend. The healthiness of a chocolate depends mainly on the polyphenol, fat and sugar contents. Although the literature serves several interventions to reduce the fat content and total calorie content of chocolates, it does not provide many interventions that consider both improving the polyphenol and reducing the fat content simultaneously. Considering this gap in the literature, this research project sought to develop a chocolate that is both low in fat and high in polyphenol content, without sacrificing the taste that consumers would expect in a good dark chocolate. The research resulted in three chocolate formulas that consists of 60% cocoa and 30% fat (formula A, formula B and formula C). They differed from each other in the polyphenol content due to the changes in the cocoa powder type and the presence or absence of freeze-dried blueberry powder. Formula A and formula B mainly differed in the percentage of each type of cocoa powder, both alkalized and non- alkalized. Formula C differed from the other two formulas because there was no freeze-dried blueberry powder. The resulted chocolates were evaluated for the sensory characteristics using paired preference tests and consumer-oriented attribute diagnostic tests (color, flavor, melting properties, overall preference, likelihood to buy). They were analyzed for polyphenol content using Folin-Ciocalteu assay. The chocolates were compared with a well-established commercial chocolate (formula D) of a 60% cocoa. Sensory evaluation tests revealed that formula C was superior and comparable to the commercial chocolate D in all the tested attributes except for color. Polyphenol analysis confirmed that all three developed formulas had a higher polyphenol estimate than formula D. Consumers preferred to buy each chocolate type regardless of the differences in their preference for the other attributes, if the chocolates were known to be healthier. Formula C was found to be the best prototype formula among the developed formulas and it can further be developed to enhance the color and other attributes in future work.

Bombom é o produto constituído por massa de chocolate ou por um núcleo formado de recheios diversos, recobertos por uma camada de chocolate. Alimentos para fins especiais (diet) são aqueles nos quais ocorrem modificações no conteúdo de nutrientes, e são adequados à utilização em dietas diferenciadas, atendendo às necessidades de pessoas em condições metabólicas e fisiológicas específicas. O termo light pode ser utilizado quando for cumprido o atributo de redução mínima de 25% no valor energético total ou no conteúdo de nutrientes de alimentos comparados. Propriedade funcional é aquela relativa ao papel metabólico ou fisiológico que o nutriente ou não nutriente tem nas funções do organismo humano. O presente trabalho visou o desenvolvimento de recheios diet e light para bombons com adição de ingrediente com propriedade funcional (inulina). Foram desenvolvidos um bombom controle e dez formulações de bombom diet e light, sendo apenas uma (F9) selecionada. Um bombom comercial foi utilizado como referência. Foram feitas as análises de atividade de água, pH, umidade, lipídios totais, proteína, fibra alimentar, carboidrato por diferença, perfil de textura (dupla compressão, em analisador de textura TA-XT2) em diferentes temperaturas e tempos de armazenamento. Os bombons (controle e F9) foram comparados através de análise sensorial, sendo apresentados como amostras independentes em um teste de aceitação com escala hedônica híbrida. A substituição dos açúcares por edulcorantes e agentes de corpo foi satisfatória, assim como o uso do substituto de gordura Benefat®. A inulina Raftiline® ST apresentou textura melhor que a inulina Raftiline® HP-Gel, não sendo percebida na boca. A análise do perfil de textura mostrou que o bombom comercial e o de controle apresentaram maior durabilidade que o bombom F9, que apresentou perda de dureza e aumento da mastigabilidade. Na análise sensorial, o bombom F9 obteve altos níveis de intenção de compra, podendo nesta análise ser considerado como um produto de grande potencial de mercado. / Chocolate confectionery is a product consisting of either chocolate mass or a nucleus containing several fillings covered with a chocolate layer. Food for special purposes are those in which modifications are made in what is related to the nutrients content, adapted to the utilization in differentiated diets, in order to fulfill the needs of people showing specific metabolic and physiological disorders. The term light is applied to a product providing it accomplishes the attribute of a 25% minimum reduction in the total energetic value or nutrients content if compared to a similar, standard product. The functional property is relative to the metabolic or physiological role (function) the nutrient or the non-nutrient plays in the human organism o The present work aimed at the development of diet and light fillings for chocolate confectionery using an ingredient (inulin) with a functional property. Two series of chocolate confectionery samples were prepared: a control sample and ten diet and light formulations. One of these formulations, F9, was selected. A commercial chocolate confectionery was used as reference. Analyses were performed to evaluate the water activity, pH, humidity, total lipids, protein, carbohydrate per difference (including fibers), texture profile (double compression, using a texturometer HAS-XT2) in several controlled environments at different temperatures and stored during different periods of time. The chocolate confectionery samples (Control and F9) were compared using sensorial analysis. Independent samples were offered in an acceptance test with hedonic hybrid scale. The substitution of sugars by sweeteners and body agents was satisfactory, as well as the use of a fat substitute, Benefat®. The Inulin Raftiline® ST presented better texture than the Inulin Raftiline® HP-Gel, but no difference was noticed on the mouth feel test. The texture profile showed that both the commercial and the control chocolate confectionery samples presented longer durability than the F9 sample, which presented increased hardness and loss of chewiness. In the sensorial analysis, the chocolate confectionery F9 obtained high levels of purchase intention and thus can be considered as a great product from a market potential point of view.

Bombom é o produto constituído por massa de chocolate ou por um núcleo formado de recheios diversos, recobertos por uma camada de chocolate. Alimentos para fins especiais (diet) são aqueles nos quais ocorrem modificações no conteúdo de nutrientes, e são adequados à utilização em dietas diferenciadas, atendendo às necessidades de pessoas em condições metabólicas e fisiológicas específicas. O termo light pode ser utilizado quando for cumprido o atributo de redução mínima de 25% no valor energético total ou no conteúdo de nutrientes de alimentos comparados. Propriedade funcional é aquela relativa ao papel metabólico ou fisiológico que o nutriente ou não nutriente tem nas funções do organismo humano. O presente trabalho visou o desenvolvimento de recheios diet e light para bombons com adição de ingrediente com propriedade funcional (inulina). Foram desenvolvidos um bombom controle e dez formulações de bombom diet e light, sendo apenas uma (F9) selecionada. Um bombom comercial foi utilizado como referência. Foram feitas as análises de atividade de água, pH, umidade, lipídios totais, proteína, fibra alimentar, carboidrato por diferença, perfil de textura (dupla compressão, em analisador de textura TA-XT2) em diferentes temperaturas e tempos de armazenamento. Os bombons (controle e F9) foram comparados através de análise sensorial, sendo apresentados como amostras independentes em um teste de aceitação com escala hedônica híbrida. A substituição dos açúcares por edulcorantes e agentes de corpo foi satisfatória, assim como o uso do substituto de gordura Benefat®. A inulina Raftiline® ST apresentou textura melhor que a inulina Raftiline® HP-Gel, não sendo percebida na boca. A análise do perfil de textura mostrou que o bombom comercial e o de controle apresentaram maior durabilidade que o bombom F9, que apresentou perda de dureza e aumento da mastigabilidade. Na análise sensorial, o bombom F9 obteve altos níveis de intenção de compra, podendo nesta análise ser considerado como um produto de grande potencial de mercado. / Chocolate confectionery is a product consisting of either chocolate mass or a nucleus containing several fillings covered with a chocolate layer. Food for special purposes are those in which modifications are made in what is related to the nutrients content, adapted to the utilization in differentiated diets, in order to fulfill the needs of people showing specific metabolic and physiological disorders. The term light is applied to a product providing it accomplishes the attribute of a 25% minimum reduction in the total energetic value or nutrients content if compared to a similar, standard product. The functional property is relative to the metabolic or physiological role (function) the nutrient or the non-nutrient plays in the human organism o The present work aimed at the development of diet and light fillings for chocolate confectionery using an ingredient (inulin) with a functional property. Two series of chocolate confectionery samples were prepared: a control sample and ten diet and light formulations. One of these formulations, F9, was selected. A commercial chocolate confectionery was used as reference. Analyses were performed to evaluate the water activity, pH, humidity, total lipids, protein, carbohydrate per difference (including fibers), texture profile (double compression, using a texturometer HAS-XT2) in several controlled environments at different temperatures and stored during different periods of time. The chocolate confectionery samples (Control and F9) were compared using sensorial analysis. Independent samples were offered in an acceptance test with hedonic hybrid scale. The substitution of sugars by sweeteners and body agents was satisfactory, as well as the use of a fat substitute, Benefat®. The Inulin Raftiline® ST presented better texture than the Inulin Raftiline® HP-Gel, but no difference was noticed on the mouth feel test. The texture profile showed that both the commercial and the control chocolate confectionery samples presented longer durability than the F9 sample, which presented increased hardness and loss of chewiness. In the sensorial analysis, the chocolate confectionery F9 obtained high levels of purchase intention and thus can be considered as a great product from a market potential point of view.