不同原料颜色对高粱红色素理化性质的影响

Effect of different raw material color on physical and chemical properties of sorghum red pigment

摘要: 分别采用红色和黑色两种颜色高粱壳为原料提取高粱红色素,对其理化性质分析比较,可知黑壳色素提取率为5.2%,色价45,耐热性能好,色调为紫褐色,色泽较暗;红壳色素提取率为3.1%,色价32,色调为红棕色,色泽较亮。

Abstract: Sorghum red pigment extracted from red and black color sorghum shell, physical and chemical properties result was that the pigment extraction rate of black shell was 5.2%, color value was 45, heat resistance was good, hue was purple and brown, color and lustre was dark. Pigment extraction rate of red shell was 3.1%, color value was 32, hue was reddish brown, colour and lustre was more bright.