METHOD FOR PRODUCING SUGAR SOLUTION

摘要

A method for producing a sugar liquid by processing a cellulose-derived sugar liquid through one or more of separation membranes selected from ultrafiltration membranes, nanofiltration membranes and reverse osmosis membranes, wherein a separation membrane(s) contaminated due to the filtration is/are washed with warm water at a temperature of not less than 50°C to achieve effective washing of the contaminated separation membrane(s).