| abstract |
PROBLEM TO BE SOLVED: To provide a raw coffee bean extract from which caffeine is selectively removed without significant change in chlorogenic acid composition and good hue. SOLUTION: A caffeine-containing raw coffee bean extract is dissolved in a mixed solution having an organic solvent and water mass ratio of 9/1 to 1/9, and contacted with activated carbon and / or activated clay or acidic clay. A method for producing caffeinated raw coffee bean extract. [Selection figure] None |