Monocalcium Phosphate Monohydrate is an acidulant and leavening agent in bread and other baked goods. It can also be used as a dough conditioner. This monocalcium phosphate monohydrate is dispersed in hydrogenated vegetable oil. Hydrogenation is a process that alters the melting point of oils, making them solid at higher temperatures. Because it is hydrogenated, it contains saturated fats.