Larisa Cato, Daniel Mullan, in Breadmaking (Third Edition), 2020. 8.5.1.4 Wheat protein content. Wheat protein content is an important consideration for all end products (uses of wheat) from bread baking to noodles, paste, cakes, and biscuits. Wheat protein content varies widely depending on wheat class, growing region, type and quality of soil, and of course fertilizers input (amount and ...