Optimization of Aqueous Two-Phase Extraction of Saponins from Rubus parvifolius L.by Modified Central Composite Design and Response Surface Methodology
LI Na1, ZHOU Wen-jie1,2, YU Qi-nan1,2, YANG Rong-ping1,2*
NATURAL PRODUCT RESEARCH AND DEVELOPMENT . 2014, (5): 726 -730 .