EXTRACTION TECHNOLOGY OF OLIGOMERIC PROANTHOCYANIDINS
YANG Lei1, SU Wen-qiang1, LI Yan-jie2, SONG Hao1, LIU Wen-bin3
1. College of Material Science and Engineering, Northeast Forestry University, Harbin150040, China;2. Sixth Pharmaceutical Factory of Harbin Medicine Group, Harbin 150056, China;3. Department of Chemical Engineering, Harbin Engineering University, Harbin 150001 China