Selection of Appropriate Solvent for Extraction of
Total Anthraquinones
Distilled water, 50%, 70% and 95% ethanol were
used for extraction total anthraquinones according to
step I in scheme 1. Total anthraquinones content in
each extract was according to step I in scheme 1. Total
anthraquinones content in each extract was determined
by UV-vis spectrophotometric method. A solvent
promoted the extract with the highest yield of total
anthquinones was choosen as the appropriate solvent.
The results are shown in Table 1.