本文对玫瑰花天然红色素的提取、精制工艺进行了研究，通过实验确定了乙醇浸提法制备玫瑰花红色素的实验条件。乙醇浸提法的最佳条件为：70%的乙醇水溶液（料液比1:10）下70℃提取3h。采用DA101大孔吸附树脂对粗制的色素进行精制，精制后色素色价提高了8倍。

The extraction and purification of red pigment from rose was studied. the optimal ethanol extraction conditions were as follows: extraction time was 3h; the extraction temperature was 70℃; and the ratio of rose to 70% ethanol was 1:10. The obtained original extracts were then purified with DA 101 Macroporous Resin. Results showed that the color value of purified extracts was 8 times higher than that of original extracts.