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IsoDrink: development of an isotonic drink based on thermal water and natural ingredients

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Resumo:Isotonic drinks are sport beverages containing mineral salts and carbohydrates of quick absorption, which goal is to replenish electrolytes and energy lost during physical activity. The segment of sport beverages has expanded its market and novel ingredients have been introduced to meet the demand for “clean-label” and natural-based products. Thermal water (TW) are natural mineral waters naturally rich in minerals and salts. Particularly, TW from Chaves (Portugal) is rich in sodium, which is the most important mineral in isotonic drinks. Nevertheless, its potential in beverage sectors has been never evaluated. Thus, the aim of this study was to develop an innovative isotonic drink formulation benefiting of TW as source of minerals, apple juice for sugars and antioxidant supply, and an aqueous extract of hibiscus flowers as colorant and source of antioxidants (standard formulation). Two control formulations were also prepared: one with TW but no apple juice, no hibiscus extract (unflavored); and other with no TW, but distilled water instead. The isotonic formulations were developed considering chemical, physico-chemical and sensory parameters (taste, color, sodium content, pH, soluble solids, and sugar content). The final beverages were pasteurized (85 °C/30 seconds) and studied for pH, color, total soluble solids (TSS), minerals, sugars, anthocyanins, phenolic compounds, antioxidant (Oxygen Radical Absorbance Capacity – ORAC) and anti-inflammatory activities using in vitro cell-based assays. Moreover, the behavior of these parameters was Monitored over 45 days, under 2 storage temperatures 4 °C and 25 °C.
Autores principais:Radhouane, Maroua Fatma
Assunto:Sport drink Sport food Minerals Apple juice Hibiscus Natural ingredients Antioxidant Anthocyanin Shelf life Stability
Ano:2023
País:Portugal
Tipo de documento:dissertação de mestrado
Tipo de acesso:acesso aberto
Instituição associada:Instituto Politécnico de Bragança
Idioma:inglês
Origem:Biblioteca Digital do IPB

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