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AssigneeKao Corporation
InventorsChitoshi Shigeno, Yasushi Shioya, Tatsuya Kusaura, Yoshikazu Ogura, Yoshinobu Hayakawa
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The present invention provides refined roasted coffee beans having a Hunter L value of 10 to 30 and a hydroxyhydroquinone content of not higher than 30 mg/kg by contacting an aqueous solvent with raw material roasted coffee beans. The invention also provides a process for producing refined roasted coffee beans, which includes contacting raw material roasted coffee beans having a Hunter L value of 12 to 35, with coffee bean-derived extract-containing water selected from water containing an extract derived from roasted coffee beans having a Hunter L value of 40 or more and water containing an extract derived from raw coffee beans.
Refined roasted coffee beans, having a Hunter L value of 10 to 30, a hydroxyhydroquinone content of not higher than 30 mg/kg, and a content of chlorogenic acids of from 0.1 to 6% by mass.
Refined roasted coffee beans, having a Hunter L value of 10 to 30 and a hydroxyhydroquinone content of not higher than 10 mg/kg, wherein a content of chlorogenic acids is from 0.1 to 5% by mass.
Refined roasted coffee beans, having a Hunter L value of 10 to 30 and a hydroxyhydroquinone content of not higher than 10 mg/kg, wherein a content of chlorogenic acids is from 0.2 to 4% by mass.
Refined roasted coffee beans, having a Hunter L value of 10 to 30 and a hydroxyhydroquinone content of not higher than 10 mg/kg, wherein a content of chlorogenic acids relative to a content of soluble solids in the refined roasted coffee beans is from 0.5 to 17% by mass.
Dependencies are inferred from the claim text.