Abstract The aim of this study was to characterize the oil obtained from seeds of Campomanesia adamantium by physicochemical quality parameters, oxidative stability, antioxidant activity, quality indexes, optical and thermal stability and its fatty acid profile. These seeds were a relevant source of oil (83 mg g-1) with high potential antioxidant activity (IC50 = 25.32 μg mL-1) evaluated by DPPH (1,1-diphenyl-2-picrylhydrazyl) with induction period above of 50 hours. In addition, palmitic (53%) and oleic (34%) are the primary saturated and monounsaturated fatty acids. This oil showed excellent quality for edible vegetable oil and bioctive compounds. The thermal stability of this oil by thermogravimetric analysis/differential thermogravimetry (TGA/DTG) started at 154 and 231 °C under synthetic air and nitrogen atmospheres, respectively, and by differential scanning calorimetry (DSC) crystallization was onset at 4.94 °C. This study revealed as a novelty that the C. adamantium seeds are an excellent source of oil that presents best qualities, which makes it a great candidate for edible vegetable oil, as well as for production of soap, lotions and biofuel.

Resumo: Este trabalho objetivou elaborar frozen yogurt com baru e avaliar suas características nutritivas, bioativas e sensoriais. O frozen foi elaborado com 9,8% de castanhas de baru e analisado para umidade, proteínas, lipídeos, carboidratos, cinzas, compostos fenólicos, atividade antioxidante, aceitabilidade e intenção de compra. Os resultados demonstraram que o frozen pode contribuir para a manutenção da saúde e tem boa aceitabilidade junto ao mercado consumidor.

Abstract: The aim of this study was to prepare frozen yogurt with baru nuts and to evaluate its nutritive, bioactive and sensory characteristics. The yogurt containing 9.8% baru nuts was analyzed for moisture, proteins, lipids, carbohydrates, ash, phenolic compounds, antioxidant activity, acceptability and purchase intention. The results showed this yogurt could contribute to the maintenance of health and has good consumer acceptability.

Resumen: Este trabajo objetivou elaborar yogur congelado con baru y evaluar sus características nutritivas, bioativas y sensoriais. O congelado para elaborado con 9,8% de castas de barro y analizado para la umidad, proteínas, lipídeos, carboidratos, cinzas, compuestos fenólicos, actividad antioxidante, aceitabilidad e intención de compra. Los resultados demostrativos que pueden congelarse pueden ayudar a mantener la salud y tener buena aceptación junto al mercado consumidor.

Résumé: Cette recherche visait à développer le yogourt glacé avec Baru et d'évaluer leurs caractéristiques nutritionnelles, bioactive et sensorielles. La gelée a été préparée avec 9,8% de noix Baru et analysés pour déterminer l'humidité, les protéines, les lipides, les glucides, les cendres, les composés phénoliques, l'activité anti-oxydante, l'acceptabilité et l'intention d'achat. Les résultats ont montré que la gelée peut contribuer au maintien de la santé et une bonne acceptabilité sur le marché des consommateurs.

Resumo Este trabalho teve como objetivo avaliar a aceitabilidade sensorial de muffin adicionado de diferentes níveis de farinha da casca de jabuticaba, entre crianças. Além disso, determinar a composição físico-química do produto tradicional e daquele com maior teor de farinha de casca de jabuticaba e com aceitação semelhante ao tradicional. Foram elaboradas cinco formulações de muffin: 0% (padrão), 4,5%, 9%, 13,5% e 18% de farinha de casca de jabuticaba. Participaram da avaliação sensorial 65 avaliadores não treinados, de ambos os gêneros, com idade entre 7 e 10 anos. Foram avaliados os teores de umidade, cinzas, proteína, lipídio, carboidrato, calorias e fibra alimentar. As amostras não diferiram significativamente (p > 0,05) para os atributos de aparência, aroma e cor. Sabor, textura, aceitação global e intenção de compra tiveram maiores notas (p < 0,05) para as formulações com 0% e 4,5%, comparadas àquelas com 13,5% e 18% de farinha de casca de jabuticaba. A amostra com 9% foi aquela com maior teor de farinha de casca de jabuticaba e com aceitação semelhante ao muffin tradicional. Maiores teores de umidade, cinzas e fibra alimentar, e menores teores de lipídios e proteínas foram constatados para a formulação com 9%, quando comparada com a formulação padrão. Não houve diferença significativa para os conteúdos de carboidrato e calorias. Conclui-se que um nível de adição de até 9% de farinha da casca de jabuticaba em muffin foi bem aceito pelos avaliadores infantis, obtendo-se aceitação sensorial semelhante ao produto padrão, com bom potencial de comercialização.

Abstract This work aimed to evaluate the sensory acceptance by children of muffins containing different levels of jaboticaba skin flour. It also aimed to determine the physicochemical composition of the traditional product and compare it with that containing the highest level of jaboticaba skin flour showing acceptance similar to that of the traditional muffin. Five muffin formulations containing different levels of jaboticaba skin flour were prepared: 0% (standard), 4.5%, 9%, 13.5% and 18%. A group of 65 untrained tasters of both genders, aged from 7 to 10, took part in the sensory evaluation. The moisture, ash, protein, lipid, carbohydrate, calorie and dietary fibre levels were evaluated. The samples presented no significant alterations ( p > 0.05) for the attributes of appearance, aroma and colour. The formulations containing 0% and 4.5%, received the highest scores (p < 0.05) for flavour, texture and overall acceptance as compared to those with 13.5% and 18% jaboticaba skin flour. The sample with 9% was the one with the highest level of jaboticaba skin flour with acceptance similar to that of the traditional muffins. Higher moisture, ash and dietary fibre levels and lower lipid and protein levels were detected in the formulation with 9%, when compared to the traditional muffins, but there were no significant changes in the carbohydrate and calorie contents. It was concluded that a level of up to 9% jaboticaba skin flour in the muffins was well accepted by the child tasters, achieving a sensory acceptance similar to that of the traditional product and with good commercial potential.

Resumo O aproveitamento da bocaiuva, no Mato Grosso do Sul, tem forte apelo socioeconômico e ambiental. A polpa da bocaiuva é rica em nutrientes e possui ação antioxidante, sendo que sua utilização na formulação de geleias minimiza as perdas pós-colheita e fornece ao mercado um produto com alto valor nutricional o ano todo. Objetivou-se elaborar e avaliar, química e sensorialmente, as geleias produzidas com polpas de bocaiuva (Acrocomia aculeata (Jacq.) Lodd ex. Mart) de dois morfotipos, coloração alaranjada e amarelada, caracterizando as polpas in natura e as geleias quanto aos parâmetros físicos e químicos. Utilizou-se, no processamento da geleia, polpa diluída e açúcar (1:1), pectina e ácido cítrico. A polpa in natura e a geleia elaborada com polpa amarelada apresentaram maiores teores de fenóis totais e capacidade antioxidante. As geleias não diferiram entre si quanto aos constituintes nutricionais, com exceção do resíduo mineral fixo, em que a de polpa amarelada apresentou maior valor. A geleia com polpa alaranjada apresentou índice de aceitabilidade superior a 80% nos atributos analisados (aspecto global, sabor e consistência) e na intenção de compra, superior estatisticamente à geleia com polpa amarelada. Diferentes morfotipos de frutos nativos podem originar produtos processados, diferenciados e valorizados.

Abstract Bocaiuva cultivation, mainly in Mato Grosso do Sul, has a strong socio-economic and environmental appeal. Bocaiuva pulp is rich in nutrients and has antioxidant action, and its use in the formulation of jellies minimizes post-harvest losses and provides market with a product with high nutritional value throughout the year. The aim of this work was to elaborate and chemically and sensorially evaluate jellies produced with bocaiuva pulp (Acrocomia aculeata (Jacq.) Lodd ex Mart) of two morphotypes, orange and yellowish pulp, characterizing fresh pulps and jellies regarding physical and chemical parameters. Diluted pulp and sugar (1: 1), pectin and citric acid were used in jelly processing. Fresh pulp and jelly made with yellowish pulp showed higher contents of total phenols and antioxidant capacity. Jellies did not differ in nutritional constituents, except for fixed mineral residue, in which the yellowish pulp had higher value. Jelly with orange pulp had acceptability index over 80% in the analyzed attributes (global aspect, flavor and consistency) and in the purchase intention, statistically superior to jelly made with yellowish pulp. Different native fruit morphotypes can give rise to differentiated and valued processed products.

Abstract Oxygen metabolism in cells causes the production of free radicals, which produce damage, including changes in cell structure and function. Antioxidants are substances that, at low concentrations, slow down or prevent oxidation. Fruits and vegetables contribute to the dietary supply of these compounds. The flora of the Cerrado in Brazil has shown to have high levels of bioactive compounds. This study aimed to characterize the antioxidant activity of the pulp of jatobá-do-cerrado in vitro and in vivo.In vitro antioxidant activity of the aqueous, ethanol and aqueous acetone extracts was evaluated by the DPPH method. We determined total phenols by the Folin-Ciocalteu assay and tannins by the Folin-Denis method.In vivo antioxidant potential of the aqueous acetone extract was evaluated by the TBARS technique. The aqueous acetone extract had the highest antioxidant capacity, followed by the aqueous and ethanol extracts. The same pattern occurred in the extraction of phenols and in the extraction of tannins. In vivo administration of the aqueous acetone extract inhibited lipid peroxidation compared to the control group. The inhibition of peroxidation has increased by elevating the dosage concentration of the extracts, demonstrating a significant antioxidant potential in vivo as well as in vitro.