Functional peanut butter stuffed snack development based on Brazilian pine (Araucaria angustifolia) and rice flours

摘要

This study aimed to develop peanut butter stuffed snacks (PBSSJbased on Brazilian pine and rice flours by extrusion cooking and evaluating its nutritional composition, shelf life and prebiotic potential. Base blend (Brazilian pine and whole rice flour, refined sugar, soy protein extract, sodium chloride and sodium bicarbonate) were adjust to 14 % moisture and processed in a co-rotating twin-screw extruder. Afterwards, the snacks were handling stuffed with peanut smooth. PBSS was assessed both by nutrition composition (moisture, protein, ash, lipids, fiber, carbohydrate, and sodium) and water activity. Food safety was assessed by count of coliforms group, Bacillus cereus, coagulase positive Staphylococcus, sulfite-reducing Clostridium and Salmonella sp. In vitro assessment of PBSS prebiotic potential was either by PBSS medium (sterile distilled water, ground PBSS, and methylene blue colour indicator) acidification or probiotic lactobacilli growth. PBSS were highlighted for low sodium and carbohydrate foodstuffs. Furthermore, PBSS had higher proportion of fiber, proteins and lipids than other gluten-free snacks available in the marketplace.In fact, PBSS is a potential food forceliac, vegan, vegetarian and low-carbohydrate diet. PBSS also show some prebiotic potential observed by PBSS medium acidification due probiotic lactobacilli activity. Therefore, PBSSconsumption can be associated to improving gut microbiome as well.