Fruit juices are on the rise, due to the search new mixes, flavors and nutritional value. This research investigated the acceptance and sensory profile of mixed juices. Sixteen (16) mixed juices with caja, umbu, cocoa and mango flavors were studied, using acceptance and check-all-that-apply (CATA) tests in different cities (n = 226). Juices A1 and D1 had the highest scores in Porto Alegre-RS, Brazil (respectively, 7.15 and 6.91). Differently from Salvador-BA, Brazil, where the highest scores were D2 (6.76) and D3 (6.71). Using CATA, it was shown that customers in the Southern Region characterized samples differently from customers in the Northeastern Region, and the correspondence analysis, showed that consumers in Porto Alegre-RS presented different attributes than those in Salvador-BA, with respect to mixed juices and their acceptance. Ot is suggested the validity of the consumer data in the characterization of the sensory parameters of the mixed juices and that the familiarity with the fruit flavors interfered in the acceptance of the same.

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The use of non-dairy matrices for probiotic delivery can be beneficial for vegetarian, vegan and lactose intolerant consumers. Stevia rebaudiana extract can be used as sweetener to replace sucrose for glucose intolerants. This research evaluated the use of kefir grains to prepare a low-calorie, fruitbased kefir beverage. Fermentation was carried out by inoculating kefir grains into a mixture of mango and umbu pulps. Two beverages, one containing sucrose, and the other, stevia, were characterized according to their proximate composition and submitted to a 30-day shelf-life period at 5°C, evaluating lactic acid bacteria, yeasts, pH, acidity, color parameters, soluble solids, ascorbic acid, sensory acceptance, and purchase intention every 10 days. Lactic and acetic acids were analyzed at the beginning and end of the shelf-life. Both beverages showed probiotic potential. The stevia-sweetened beverage had lower calorie content and good sensory acceptance. These results support the possibility to develop low-calorie, fruit-based kefir beverages.Viabilidad química, microbiológica y sensorial de bebidas de kéfir bajas en calorías y sin lácteos preparadas a partir de jugos de frutas tropicales mixtas RESUMEN El uso de matrices no lácteas para la administración de probióticos puede ser beneficioso para consumidores vegetarianos, veganos e intolerantes a la lactosa. El extracto de Stevia rebaudiana puede utilizarse como edulcorante sustituto de la sacarosa en el caso de intolerantes a la glucosa. Esta investigación se propuso evaluar el uso de granos de kéfir para preparar una bebida de kéfir baja en calorías y a base de frutas. La fermentación se llevó a cabo inoculando granos de kéfir en una mezcla de pulpas de mango y umbú. Posteriormente, se caracterizaron dos bebidas, una con sacarosa y otra con stevia, según su composición proximal, sometiéndolas a un periodo de vida útil de 30 días a 5°C. Luego, se evaluaron cada 10 días las bacterias lácticas, las levaduras, el pH, la acidez, los parámetros de color, los sólidos solubles, el ácido ascórbico, la aceptación sensorial y la intención de compra. Asimismo, se analizó el contenido de ácidos láctico y acético al inicio y al final de la vida útil. Se constató que ambas bebidas mostraron potencial probiótico. La bebida endulzada con stevia posee menor contenido calórico y buena aceptación sensorial. En conclusión, estos resultados fundamentan la posibilidad de elaborar bebidas de kéfir bajas en calorías y a base de frutas.

In this study, we evaluated the effects of ultrasound-assisted extraction (UAE) under different time-temperature conditions on the content of bioactive compounds, antioxidant and antimicrobial activities of Syrah grape skin residue. The application of UAE showed a positive effect on the extraction of total flavonoids, and a negative effect on total polyphenols. The temperature of 40 °C and 60 °C without the UAE caused an increase of 260% and 287% of the total polyphenols, respectively. Nineteen individually bioactive compounds were quantified. The anthocyanin concentration (malvidin-3,5-di-O-glucoside 118.8–324.5 mg/100 g) showed high variation, to a lesser extent for phenolic acids, flavonoids, flavonols, procyanidins and stilbenes due to the UAE process. The Syrah grape skin residue has a high concentration of total phenolic compounds of 196–733.7 mg·GAE/100 g and a total flavonoid content of 9.8–40.0 mg·QE/100 g. The results of free radical scavenging activity (16.0–48.7 mg/100 mL, as EC50) and its inhibition of microbial growth (0.16 mg/mL, as EC50 for S. aureus, and 0.04 mg/mL, as EC50 for E. coli) by grape skin extract (UAE 40:20) indicate high antioxidant and antibacterial activity. It was concluded that the use of ultrasound needs further analysis for its application in this context, as it has shown deleterious effects on some compounds of interest. Syrah grape skin residue has potential as a source of bioactive antioxidants, antimicrobial activity and for use as a functional food ingredient.

CIP) (eDOC BRASIL, Belo Horizonte/MG) P964 A produção do conhecimento nas ciências da saúde 2 [recurso eletrônico] / Organizador Benedito Rodrigues da Silva Neto. -Ponta Grossa (PR): Atena Editora, 2019. -(A Produção do Conhecimento nas Ciências da Saúde; v. 2) Formato: PDF 1. Abordagem interdisciplinar do conhecimento. 2. Saúde -Pesquisa -Brasil. I. Silva Neto, Benedito Rodrigues da. II. Série. CDD 610.7 Elaborado por Maurício Amormino Júnior -CRB6/2422 O conteúdo dos artigos e seus dados em sua forma, correção e confiabilidade são de responsabilidade exclusiva dos autores. 2019 Permitido o download da obra e o compartilhamento desde que sejam atribuídos créditos aos autores, mas sem a possibilidade de alterá-la de nenhuma forma ou utilizá-la para fins comerciais.