To study optimal extraction conditions of rose rugosa pigment from rose catsup and dry flower bud as raw material, mono-factor analysis method was adopted.
以玫瑰干花与玫瑰花酱为原料，研究玫瑰色素提取的工艺条件，并对有关参数进行优化。
2
The paper adopted the dual-step ethanol extraction in the extraction of gardenia yellow pigment.
采用了有机溶剂二级浸提法提取栀子黄色素。
3
The yield of the pigment extract was 11% under the adopted condition.