Optimization of Membrane Separation of Dioscin from Dioscorea nipponica Using Response Surface Methodology  
SONG Xiao*, ZHANG Xin-bo, JIAO Ying, TANG Zhi-shu
NATURAL PRODUCT RESEARCH AND DEVELOPMENT . 2018, (5): 882 -887 .  DOI: 10.16333/j.1001-6880.2018.5.024