出版社：Grupo de Pesquisa Metodologias em Ensino e Aprendizagem em Ciências
摘要：The aim of our research was to elaborate, characterize and evaluate the stability under light/darkness and different temperatures (4 and 25 oC) of the color of an isotonic beverage based on whey permeate with carotenoid extract powder from pequi, and verify its microbiological safety and sensory acceptance. The 3%(w/v) concentration of powdered carotenoid from pequi was chosen because it has osmolality (314.89mOsmol/L) in the range of hydroelectrolytic beverages and light-yellow tint. The beverage was evaluated for minerals Na (662mg/L), K (1363.73 mg/L), total carotenoids (75.9mg/L) and antioxidant capacity by the radicals ABTS(10.79μmolequivalent Trolox/100 mL) and DPPH (73.38μmol equivalent Trolox/100mL), had good sensory acceptance by athletes and remained within microbiological criteria during stability study. The color coordinate L* has undergone less change and C*, greater change. The condition darkness at 4 oC showed less change in yellow tint, for more than 30 days (t1/2=121.6 day). Due to its characteristics, the beverage has potential benefits for consumption by athletes, because besides being isotonic, it has bioactive properties of pequi carotenoids and natural constituents of whey permeate. The use of permeate, often discarded as effluent, has benefits for the environment.
