ABSTRACT
The aim of the present work was to characterize cereal bars with high levels of fiber and w-3 using functional ingredients. Formulations were developed containing 0%, 5%, 10% and20% of linseed. Proximate chemical, w-linolenic and linoleic acids and acceptability analyses were carried out. The carbohydrate concentrations of the cereal bars with linseed were lower than those of the control (p<0.004); while the protein content did not differ among the formulations (p>0.05). The bar containing 20% of linseed presented higher lipid content (p<0.001). The formulations with 5% and 10% of linseed were considered sources of dietary fiber, while the formulation with 20% was considered a good source. Regarding -3, the formulations containing linseed were classified as excellent sources. The calorie value of the cereal bars was around 100 kcal/portion. The formulations containing linseed presented higher acceptability, and that with 20% of linseed was found to be the formulation with the best chemical and sensory characteristics. Therefore, the addition of linseed in cereal bars is a good option to develop a functional product, which may contribute to a healthy diet and to the reduction of several non-communicable diseases.
Objetivou-se caracterizar barras de cereais enriquecidas com fibra alimentar e ômega-3, utilizando ingredientes funcionais. Foram desenvolvidas formulações, contendo 0%, 5%, 10% e 20% de linhaça, realizadas análises químicas centesimal, de ácidos α-linolênico e linoléico e aceitabilidade. As concentrações de carboidratos das barras de cereais com linhaça foram menores que o controle (p<0,004) e o teor de proteína não diferiu entre as formulações (p>0,05). A barra de cereais contendo 20% de linhaça apresentou maior teor de lipídio (p<0,001). As formulações com 5% e 10% de linhaça são consideradas fontes de fibra alimentar e a formulação com 20%, boa fonte. Com relação ao ω-3, as formulações contendo linhaça foram classificadas como excelentes fontes. O valor calórico das barras de cereais foi em torno de 100 kcal/ porção. As formulações adicionadas de linhaça apresentaram maior aceitabilidade, e a de 20% de linhaça apresentou melhor formulação em relação às características químicas e sensoriais. Portanto, a adição de linhaça às barras de cereais é uma boa opção para desenvolver um produto funcional, que pode contribuir para uma dieta saudável e reduzir várias doenças crônicas não-transmissíveis.
Subject(s)
Humans , Dietary Fiber , Food, Fortified , Fatty Acids, Omega-3 , Edible Grain , Flax , Snacks , Chemical Phenomena , Nutritive ValueABSTRACT
This study aimed to evaluate the physical-chemical, microbiological and sensory characteristics of four formulations of yacon jams. The following characteristics were analyzed: chemical composition, soluble solids, pH, microbiological presence of total coliforms and salmonella at 45 °C, and presence of fungi and yeasts. The yacon jams exhibited high moisture content (> 62%) as well as high concentrations of carbohydrates (> 28%) and total dietary fiber (2.5%), mainly fructooligosaccharides (> 0.9%). The average energy value was 124.6 kcal/100 g. The average pH was 3.8 and the soluble solids measured 27.6 °Brix. All yacon jams complied with standard microbiological requirements and received high acceptance scores, especially the yacon jam and yacon jam with cinnamon. Yacon jam products may offer an excellent alternative to more common jams due to their lower concentrations of simple sugar, lower calorie value, increased presence of dietary fibers, and desirable sensory characteristics.
Este estudio tuvo como objetivo evaluar las características físico-químicas, microbiológicas y sensoriales de cuatro formulaciones de mermeladas de yacón. Las características analizadas fueron: composición química, contenido de sólidos solubles, pH, presencia microbiológica de coliformes totales, coliformes y salmonella a 45 °C, y la presencia de hongos y levaduras. Los atascos de yacón mostraron alto contenido de humedad (> 62%), así como altas concentraciones de hidratos de carbono (> 28%) y fibra dietética total (2, 5%), principalmente fructooligosacáridos (> 0, 9%). El valor energético promedio fue de 124, 6 kcal/100g. El pH promedio fue de 3, 8 y los sólidos solubles mide 27, 6 ° Brix. Todas las mermeladas de yacón cumplido con los requisitos microbiológicos estándar y recibió altos puntajes de aceptación, en especial la mermelada de yacón y mermelada de yacón con canela. Productos de mermelada de yacón pueden ofrecer una excelente alternativa a los atascos más comunes debido a sus concentraciones más bajas de azúcar simple, un valor más bajo de calorías, el aumento de la presencia de fibras dietéticas y las características sensoriales deseadas.
Subject(s)
Humans , Dietary Fiber , Chemical Phenomena , Plant Tubers , Food , Nutritive ValueABSTRACT
In this study the chemical composition and iron bioavailability of hull and hull-less soybean flour from the new cultivar UFVTN 105AP was evaluated. The hemoglobin depletion-repletion method was used in Wistar rats. Soybean hull flour presented 37% more total dietary fiber and higher content of iron than hull-less soybean flour. The phytate:iron molar ratio, however, was 2-fold lower in the soybean hull flour in compared to the hull-less soybean flour. Animals fed soybean hull flour presented hemoglobin gains similar to those of the control diet group (p>0.05). The Relative Biological Values of hull and hull-less soybean flour were 68.5% and 67.1%, respectively, compared to the control group. Heat-treated soybean hull flour (150ºC/30 minutes) showed high content of iron and low phytate, which favors the iron bioavailability. Thus, the soybean hull flour is a better source of dietary fiber and iron than hull-less soybean flour at comparable bioavailabilities.
Neste estudo foram avaliadas a composição química e a biodisponibilidade de ferro das farinhas de soja com e sem casca do novo cultivar UFVTN 105AP. O método usado foi de depleção-repleção de hemoglobina em ratos Wistar. A farinha de soja com casca apresentou 37% a mais de fibra alimentar e maior teor de ferro (p 0,05). O Valor Relativo de Biodisponibilidade (VRB) da farinha de soja com casca e sem casca foram 68,5% e 67,1%, respectivamente, em relação ao sulfato ferroso (100%). A farinha de soja com casca submetida ao tratamento térmico (150ºC/30 minutos) apresentou maior teor de ferro e reduzido conteúdo de fitato, favorecendo a biodisponibilidade de ferro. Assim, a farinha de soja com casca apresentou melhor fonte de fibra alimentar e ferro do que a farinha de soja sem casca de comparável biodisponibilidade.