Dietary fiber in brewed coffee.
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).
Díaz-Rubio
M Elena
ME
Departament of Metabolism and Nutrition, Instituto del Frío, Consejo Superior de Investigaciones Científicas, Madrid, Spain.
Saura-Calixto
Fulgencio
F
D000975:Antioxidants / Q000032:analysis; D003069:Coffee / Q000737:chemistry*; D004043:Dietary Fiber / Q000032:analysis*; D010636:Phenols / Q000032:analysis; D012995:Solubility
D000975:Antioxidants; D003069:Coffee; D004043:Dietary Fiber; D010636:Phenols