PROBLEM TO BE SOLVED: To achieve sterilization/disinfection of food materials such as cereal grains, vegetables and fruits only by performing short-time processing without using a substance harmful to a human body, prevent mold from being generated, and enable long-term preservation of the food materials.SOLUTION: After food materials are caused to contact superheated steam of a temperature of 250-620°C, calcium oxide-containing powder that contains calcium oxide is added to the food materials, and then the food materials are mixed. It does not matter if the calcium oxide-containing powder is added to the food materials and the food materials are mixed as soon as the food materials are caused to contact superheated steam. The superheated steam contact time is preferably 0.5-20 seconds. The calcium oxide-containing powder is preferably natural calcium oxide (calcinated calcium) powder acquired by calcinating a shell, coral, nacreous layer, egg-shell or bone of a beast, fish, or bird at high temperature.COPYRIGHT: (C)2014,JPO&INPIT【課題】穀類、野菜又は果実等の食材を、人体に有害な物質を使用せずに短時間処理するだけで、滅菌・殺菌し、カビの発生も阻止でき、長期保存を可能とする。【解決手段】食材を温度250℃~620℃の過熱水蒸気に接触させた後、それに酸化カルシウムを含有する酸化カルシウム含有粉末を添加・混合する。食材を過熱水蒸気に接触させると同時に酸化カルシウム含有粉末を添加・混合しても良い。過熱水蒸気の接触時間は20秒~0.5秒間が好ましい。酸化カルシウム含有粉末は、貝殻、珊瑚、真珠層、卵殻又は獣、魚もしくは鳥の骨を高温で焼成して得られた天然の酸化カルシウム(焼成カルシウム)粉末であることが好ましい。【選択図】図1
