PROBLEM TO BE SOLVED: To provide: an anti-aging agent for grain processed food or fruit processed food that inhibits the β-conversion of α-modified starch and prevents the aging of processed food and a method for producing processed food that includes a step of adding said anti-aging agent to a grain processed product or fruit processed product.SOLUTION: Provided are: an anti-aging agent for grain processed food or fruit processed food, containing β-amylase a method of allowing amylase to act by, in the production of processed food, producing a processed food after adding, and/or mixing, the anti-aging agent to the raw-material grain processed product or fruit processed product, or by adding the anti-aging agent in the course of producing a processed food. The β-amylase preferably is one derived from soybean.SELECTED DRAWING: NoneCOPYRIGHT: (C)2017,JPO&INPIT【課題】α化澱粉のβ化を抑制し、加工食品の老化を防止する穀物加工食品用、又は果実加工食品用の老化防止剤、及び当該老化防止剤を穀物加工品又は果実加工品に添加する工程を含む加工食品の製造方法の提供。【解決手段】β-アミラーゼを含む穀物加工食品用、又は果実加工食品用の老化防止剤。加工食品の製造において、原材料となる穀物加工品、又は果実加工品に老化防止剤を添加及び/又は混合してから加工食品を製造するか、或いは、加工食品の製造途中に老化防止剤を添加して、β-アミラーゼを作用させる方法。前記β-アミラーゼは大豆由来のものを用いるのが好ましい。【選択図】なし
