8Okabe H. Study on the Constituents of Momordica charantia L Isolation and Characterization of Momordicosides A and B, Glycosides of Pentahydroxy-cucurbitane Triterpenel[J].Chem Pharm Bu11,1980,28(9):2753-2762.
9Kawano K,Sakai K,Sato H,et al.A bitter principle of Asparagus:isolation and structure of furostanol saponin in Asparagus storage root[J].Agric and Biol Chem,1975,39(8):1999-2002.