Study on the stability of red pigments from safflower

To provide important raw material for all kinds of new pigment used in food products,cosmetic and leechdom etc.Study on the stability of red pigment from safflower and the condition of extraction.Ethanol was used as the extractant in the extraction,and the pigment stability was investigated by UV spectrum.M The optimum condition for ethanol extraction is:distilled water was used as the extractant and it was extracted under room temperature for 24 h.The lmax for the pigment was 400nm,which has good solubility in water,and excellent stability in the extractant(pH 3~11)for wide temperature scope,bad light resistance characteritics was observed.Some common food additive,reducing agent has a little effect on the stability of the pigment,while oxidizing agent,light and metallic ions have effect on its stability.