Study on the extract on process of red pigment from Sichuan red pepper

Using the amaranth as raw material,the water as the extraction solvent,the extraction process of red pigment of amaranth from amaranth was studied.The results showed that the optimal conditions were that the temperature of red pigment of amaranth extraction was 50 ℃,the time of red pigment of amaranth extraction was 1 hours,the rate of solid and liquid was 180 mL water/g amaranth,the extraction times was 2.Under these conditions,using the water as the extraction solvent,had features of with low cost,easy operation and high safety,and was suitable for industrialized production.