Study on Extraction and Stability of Yellow Pigment Apricot
Study on extraction and stability of yellow pigment from apricot. The yellow pigment has the maximum absorptionwavelength λmax=450nm. The satisfactory solvent is alcohol. The optimum conditions were: concentration of solvent 70%,pH 4 and temperature of extraction 60℃. It is quite stable, lightfast, heatproof, antioxidizing and antireducing. The pigmentsare hardly affected by common food additives, such as cane sugar, essence, prservatives, VC and Mg2+、Al3+、Ca2+、Cu2+ or Fe3+.