Abstract:  The effects of pH, temperature, sunlight, UV light and initial concentration on the stability of crocin-1 were studied by chemical kinetics. The results suggested the degradation reaction of crocin-1 in solution could be fitted by pseudo-first-order reaction. The stability of crocin-1 was effect by pH, temperature, sunlight, UV light and initial concentration. Crocin-1 was sensitive to temperature, and is prone to degradation. The activation energy of croin-1 in solution was 45.36 kJ/mol.

Key words: crocin-1, stability, chemical kinetics