It is mainly discussed in this article that the technology of production and all leading elements of using the mixed cultivation system of lactobacillus plantarum,leuconostoc mesenteroides and lactobacillus acidophilus to ferment the chili powder.

This method was applied to the determination of sudanⅡ in chili powder.

According to the physics character that most synthesized pigment are all water-soluble and raising temperature can quicken them solution,after simple decoloration process,people can judge chilli powder color belongs to the color of the artificial increased pigment or the plant luster.

Selected ion monitoring(SIM) technique was used in the GC/MS determination of Sudan Ⅰ and SudanⅡin chilli powder and hot condiment-containing food products.