V. Lopezavila et al., SUPERCRITICAL-FLUID EXTRACTION OF OXINDOLE ALKALOIDS FROM UNCARIA TORMENTOSA, HRC. Journal of high resolution chromatography, 20(4), 1997, pp. 231-236
Supercritical fluid extraction of oxindole alkaloids from Uncaria Torm
entosa is described. The extraction was performed with supercritical c
arbon dioxide alone and with supercritical carbon dioxide modified wit
h 10% metanol, and the extracts were analyzed by GC/MS and HPLC/MS.