In this paper, a new cultivar Ziqiu has been taken as the experimental material. Thejoint producing technology of pigment、pectin and tartaric acid extracted from grape (Vitisdavidii Fo(?)x.) peel and pomace was studied. The main results are listed as follow:
The extracting effect of pigment from grape (Vitis davidii Fo(?)x.) peel by solvent methodwas studied on single factor in this paper. Then the physical and chemical properties of thepigment were tested. The result showed that the optim...