8Zhou W B, Feng B, Huang H Z, et al. Hydrolysis of Timosaponin BII by the Crude Enzyme from Aspergillus Niger AS 3. 0739[J]. Journal of Asian Natural Products Research, 2010, 12(11):955-961.
9Sharma S C, Thakur N K. Furostanosides from Aspara- gus Filicinus Roots[J]. Phytochemistry, 1994, 36 (2) : 469-471.
10Ly T N, Yamauchi R, Shimoyamada M, et al. Isolation and Structural Elucidation of Some Glycosides from the Rhizomes of Smaller Galanga (Alpinia officinarum Hance)[J]. Journal of Agricultural and Food Chemi- stry, 2002, 50(17) :4919-4924.