Dietary fiber in brewed coffee |
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Authors: | Díaz-Rubio M Elena Saura-Calixto Fulgencio |
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Institution: | Departament of Metabolism and Nutrition, Instituto del Frío, Consejo Superior de Investigaciones Científicas, Madrid, Spain. |
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Abstract: | Coffee beans are rich in nondigestible polysaccharides (dietary fiber), which may partially pass into brewed coffee; however, to the authors' knowledge, there is not enough literature on dietary fiber in brewed coffee. A specific method to determine dietary fiber in beverages (enzymatic treatment plus dialysis) was applied to the coffees brewed by the most common methods (espresso, filter, soluble); results showed that brewed coffee contained a significantly higher amount of soluble dietary fiber (0.47-0.75 g/100 mL of coffee) than other common beverages. Coffee dietary fiber contains a large amount of associated antioxidant phenolics (8.7-10.5 mg/100 mL of brewed coffee). |
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