The experimental results have proved that the yeast Rhodotorula rubra is a good natural yolk colorpigment and nutritious additive.
实验结果表明,深红酵母是一种很好的天然蛋黄着色剂和营养增补剂。
2
Iron oxide pigment is a colorpigment whose basic substance is the oxide of iron, such as red oxide, yellow iron oxide, black iron oxide, and brown oxide.
氧化铁颜料主要指基本物质为铁的氧化物的着色颜料,如氧化铁红、铁黑、铁黄、铁棕等。
3
The pumice comes from Italy; and the pigment which gives "the plug" its color is cadmium sulfide.