In order to study the application of sweet potato leaf powder as nutritional additive in the processing of some foods such as noodles,steamed bread and cakes,the uniform design and orthogonal design methods were used for production formula and process research with various quality indexes and their quality evaluation scores as screening targets.The research showed that sweet potato leaf powder added to noodles,steamed bread and cakes would make better quality flour products.The optimum parameters for the pr...