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Free sugars of Kochujang which were prepared with different starch sources, i.e., glutinous rice, polished barley, wheat flour and sweet potato, were investigated for three months of aging. Glucose was found in all tested samples during aging period and the content increased with time, particularly higher for glutinous rice while lower for sweet potato. Fructose also was found through aging period, its content increased for a month and decreased later. The data showed higher fructose content in the order of sources of sweet potato, u-heat flour, polished barley and glutious rice. Maltose and sucrose were detected only at the beginning of aging period and the content were less than 3.5% for maltose in all of samples and than 0.4% for sucrose with glutinous rice and wheat flour. Trace amount of rhamnose was detected in the Kochujang made from polished barley.
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