In this paper the materials are Pyracantha fortuneana fruit,which were harvested from Zhengzhou.The materials were treated by rinsing,desiccating and crushing.

• 以郑州产火棘果为原料,经冲洗、干燥、粉碎后,用70%25酸性乙醇浸提制得火棘红色素溶液,并对该色素的稳定性进行研究。