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(11) | EP 1 985 635 A8 |
(12) | CORRECTED EUROPEAN PATENT APPLICATION |
published in accordance with Art. 153(4) EPC |
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(54) | PROCESS FOR PRODUCING POLYSACCHARIDE FROM COFFEE BEAN OR/AND COFFEE EXTRACTION RESIDUE |
(57) A process for efficiently producing a polysaccharide from coffee beans or/and a coffee
extraction residue. Use of these has not received attention because of difficulty
in decomposing these. The process, which is for producing a polysaccharide from coffee
beans or/and a coffee extraction residue, comprises: a step (a) in which the coffee
beans or/and coffee extraction residue are reduced to particles having a diameter
of 10.0 µm to 5.0 mm; a step (b1) in which after the step (a), the particles are heated
at 50-100°C in the presence of a dilute alkali; a step (c1) in which after completion
of the step (b1), cellulase is caused to act thereon; a step (b2) in which after the
step (c1), a heat treatment is conducted at 120°C or higher in the presence of a dilute
alkali; and a step (c2) in which after the step (b2), cellulase is caused to act thereon.
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