Disodium pyrophosphate (SAPP, sodium acid pyrophosphate) is a condensed phosphate được sản xuất bởi heating monosodium phosphate under controlled conditions. It is one of the most widely used leavening acids in commercial baking. Nó cung cấp a controlled release of carbon dioxide when combined with sodium bicarbonate.
SAPP is có sẵn dạng multiple cấp độs with varying reaction rates to suit different baking ứng dụng. In potato chế biến, it prevents after-cooking darkening by chelating iron ions that cause discoloration. Its versatility and cost-effectiveness make it a staple ingredient in the commercial baking and food chế biến industries.