Optimum extraction conditions of green pigment were selected by orthogonal test of four factors and three levels with the fresh tea, enzym-denatured leaf and dry tea.

• 分别以鲜茶、杀青叶、干茶为试材,采用四因素四水平正交试验设计对茶绿色素浸提工艺参数进行了系统的研究。