Ubá mango juices intake decreases adiposity and inflammation in high-fat diet-induced obese Wistar rats.

OBJECTIVE: The aim of this study was to determine the effect of Ubá mango juice with and without peel extract on the adiposity and inflammation modulation in high-fat diet-induced obese Wistar rats. METHODS: The present study analyzed the total phenolic and antioxidant activity of the juices in different storage conditions. The biometry and biochemical parameters were evaluated in four experimental groups: normal control (AIN-93M), obese control (HFD), a group with obese rats plus control Ubá mango juice (MHFD), and another with enriched Ubá mango juice (HMHFD). Also, peroxisome proliferator-activated receptor gamma (PPAR-γ), lipoprotein lipase (LPL) and fatty acid synthase (FAS) expression, tumor necrosis factor-α (TNF-α ), and interleukin-10 (IL-10), as well as histomorphology of the epididymal adipose tissue were determined. RESULTS: Ubá mango juices were found to have a high content of phenolic compounds and high antioxidant activity with no change due to storage time. HFD promoted the highest weight gain per gram of diet intake due to caloric density, and mango juices reversed the HFD effect; the weight gain, visceral fat, body mass index, and adiposity were similar to AIN-93M. MHFD and HMHFD showed antioxidant and anti-inflammatory effects by increasing HDL-cholesterol fraction and PPAR-γ, LPL, and decreasing blood glucose, total cholesterol, alanine aminotransferase (ATF), and FAS and TNF-α. Additionally, the epididymal adipose tissue histology confirmed the effect of the juice to reduce adipocyte hypertrophy. CONCLUSIONS: The results showed that the Ubá mango has potential as a functional food that is capable of reducing metabolic risk for obesity associated with adiposity and inflammation.

Characterization of cereal bars enriched with dietary fiber and omega 3 / Caracterizacao de barras de cereal enriquecidas com fibra dietética e omega 3

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.

Physical and sensorial properties of potato breads fortified with whole soybean flour / Propridades físicas e sensoriais de pâes de batata fortificados com farinha integral de soja

The aim of this work was to study the effects offortification ofpo-tato bread with whole soybean flour on theirphysicochemical and sensory properties. Control formulations containing 30%, 50% and 70% soybean flour were developed. Firmness, cohesiveness, gumminess and chewiness of bread increased with the addition ofwhole soybean flour. The contents ofprotein, dietary fiber and minerals calcium, zinc, magnesium, copper and phosphorus increased with elevated concentration of soybean flour, while the lipid profile was unchanged. Preference mapping indicated greater acceptance of the control and 30% whole soybean flour formulations. These results were correlated to texture and showed that the greater firmness negatively affected its acceptance. It was concluded that the formulation with 30% was the best option offering good acceptance and high content of nutrients, which makes the flour substitution a viable alternative for the preparation of fortified baking products with equal sensory and physicochemical quality.

O objetivo deste trabalho foi investigar os efeitos da fortificaçao de paes de batata com farinha integral de soja sobre as propriedades físico-químicas e sensoriais. Foram desenvolvidas as formulaçôes controle e contendo 30%, 50% e 70% de farinha de soja. A dureza, coesividade, gomosidade e mastigabilidade dos paes aumentaram com a farinha integral de soja. Os teores de proteína, fibra alimentar e dos minerais cálcio, zinco, magnésio, cobre e fósforo foram maiores em funçao do aumento da concentraçao de farinha integral de soja, enquanto o perfil de lipídios nao foi alterado. O Mapa de Preferência Interno indicou maior aceitaçao das formulaçôes controle e com 30% de farinha integral de soja. Esses resultados foram correlacionados à textura das formulaçôes e revelaram que a maior dureza afetou negativamente sua aceitaçao. Concluise que a formulaçao com 30% foi a melhor opçao em relaçao aos parâmetros físico-químicos e sensoriais, o que torna a substituiçao das farinhas alternativa viável para elaboraçao de produtos de panificaçao fortificados e com qualidade físico-química e sensorial.

Heat-treated hull flour does not affect iron bioavailability in rats / Farinha de soja com casca tratada termicamente

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.