The spectrum characteristie of red cabbage pigment,and the effects of pH,Fe3+ and ascorbic acid on the colour and stability of the same pigment werestudied.

• 抗坏血酸等氧化还原剂加速红甘蓝色素溶液退色，并导致红色组分减少，黄色组分增加，色素溶液的色凋由红变黄。