PROBLEM TO BE SOLVED: To provide a method for economically producing mumefural, by which a problem that it is difficult to obtain the mumefural in a larger amount than about 0.03 to 1.04% even in an optimal condition can be solved, while the mumefural is contained in an amount of about 0.03 to 1.04% in plum flesh extracts, and the mumefural is furthermore obtained in a large amount from the plum flesh extracts.SOLUTION: This method for simply and stably producing the mumefural comprises diluting plum flesh extract with a 5 to 50-fold amount of water, removing insolubles, adsorbing the mumefural in the left solution by a column method or batch method using activated carbon, reheating the non-adsorbed solution to give a sugar content of 80 Brix, or adsorbing the mumefural in the left solution by a column method or batch method using HP-20, and reheating the non-adsorbed solution to give a sugar content of 80 Brix. This method for producing the mumefural is a method for simply and stably producing the mumefural.COPYRIGHT: (C)2008,JPO&INPIT【課題】梅肉エキスには約0.03%~1.04%のムメフラールが含まれているが、最適な条件下でもこれ以上の量を得ることは困難である。ここでは梅肉エキスから更に多くのムメフラールを得られる、経済的な方法を提供することを課題とした。【解決手段】梅肉エキスを5~50倍量の水で希釈後、不溶物を除去した溶液から、活性炭を用いカラム法またはバッチ法でムメフラールを吸着し、未吸着溶液を糖度80Brixまで再加熱、又はHP-20を用いカラム法またはバッチ法でムメフラールを吸着し、未吸着溶液を糖度80Brixまで再加熱する。簡便且つ安定的にムメフラールを製造する方法。
