PROBLEM TO BE SOLVED: To provide a bowel movement improving agent obtained by using high amylose rice, to provide processed rice having a bowel movement improving action or a pulverized product thereof, and to provide a processed product using the same.SOLUTION: According to the present invention, provided is a bowel movement improving agent comprising processed rice obtained by subjecting rice grains with the amylose content in a starch of 20% by weight or more to heat-moisture-treatment, or a pulverized product thereof. Also, according to the invention, provided is a method for producing processed rice having a bowel movement improving action or a pulverized product thereof characterized by subjecting rice grains with the amylose content in a starch of 20% by weight or more to heat-moisture-treatment, and if necessary, crushing. Furthermore, according to the present invention, provided is a method for improving suitability for cooking of rice grains, and a method for suppressing acidification of rice grains.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2020,JPO&INPIT【課題】高アミロース米を使用して得られる便通改善剤、便通改善作用を有する加工米またはその粉砕物、それを使用した加工品を提供すること。【解決手段】本発明によれば、澱粉中のアミロース含量が２０重量％以上である米穀粒を湿熱処理した加工米、またはその粉砕物を含む、便通改善剤が提供される。また本発明によれば、澱粉中のアミロース含量が２０重量％以上の米穀粒を、湿熱処理に付し、必要により粉砕処理を行うことを特徴とする、便通改善作用を有する加工米またはその粉砕物の製造方法が提供される。さらに本発明によれば、米穀粒の炊飯適性を向上する方法、および米穀粒の酸敗を抑制する方法も提供される。【選択図】図３
