Otimização dos teores de alga Saccharina japônica E Chenopodium quinoa Wild no desenvolvimento de barra de cereais

Abstract

Seaweed japonica saccharine, popularly known as "Kombu" is a food rich in protein, fiber and micronutrients. This algae has antioxidant properties, anti-viral, anti-tumor, anti-inflammatory and hypoglycemic. Quinoa (Chenopodium quinoa Willd) is considered a pseudocereal whose main characteristic is the quality of its protein and is recognized by the World Health Organization (WHO) as an ideal food for its nutritional composition is higher than most cereals. The addition of these two ingredients in salt cereal bar formulation can add greater nutritional value to this product, which has shown an increasing consumption in recent years. The study aimed to prepare savory cereal bars added the saccharine japonica algae in different concentrations (2, 4, 6, 8, 10%) and quinoa (1, 2, 3, 4, and 5%), through the use of design central composite (DCC). One of the formulations of the cereal bars was selected to study storage stability, with respect to acidity and moisture and microbiological analysis, and sensory parameters at times 0, 30, 60 and 90 days. In the development of cereal bars, the formulations examined had ash contents of 4.46% to 8.04% (Formulations 9 and 4, respectively), fat 2.8% to 4.61% (Formulations 3 and 5, respectively), and protein 14.2% to 19.19% (Formulations 1 and 10, respectively). The Maoria bars showed sensory acceptance corresponding to "like slightly to like a lot," and had satisfactory results for microbiological analyzes. The formulation 5, added with 2% and 3% seaweed quinoa, achieved the best results concerning the nutritional and sensory quality, thus has been selected for the study of storage stability. The moisture and acidity remained stable after 90 days of storage, similar results were observed for the microbiological quality. According to sesorial analysis, the number 5 cereal bar is framed in sensory acceptance zone in category "like moderately" to "enjoyed". Therefore, it was concluded that the developed cereal bars can become an option for many types of diet or for those seeking a healthier lifestyle, it presented high protein and low fat, as well as showing good sensory acceptance.