超声波辅助乙醇提取法提取玫瑰色素

摘要

采用玫瑰花提油后的花渣提取玫瑰色素,通过单因素试验和正交试验,确定超声波辅助乙醇提取法提取玫瑰色素的最佳条件为乙醇溶液浓度65％ (V/V),pH 1,料液比1∶20(m∶V),提取温度70℃,超声波功率400 W,超声提取时间120 min,该条件下色素的吸光值最大.%The ultrasonic assisted extraction (UAE) being used for rose pigment extraction from deoiled roses was investigated. The optimum technological conditions were obtained by single-factor and orthogonal experiments as ethanol solution concentration 65% (V/V) (pH=l), the ratio of material to solvent 1:20 (m:V), ultrasonic power 400 W, the temperature 70? and the extraction time 120 min. Under these conditions, the maximum OD value of the pigment was obtained.