| Disease | THE STABILITY OF VASICINE WAS STUDIED BY HPLC IN EXTRACTS FROM THE LEAVES OF ADHATODA VASICA USING VARIOUS SOLVENTS. WHEN EXTRACTED WITH 40% ETHANOL AND EXPOSED TO DAYLIGHT FOR 48 HOURS, 100% OF THE ORIGINAL VASICINE WAS PRESENT IN THE EXTRACT.
WHEN EXTRACTED WITH 100% METHANOL UNDER THE SAME CONDITIONS, ONLY 96.2% OF THE ORIGINAL VASICINE REMAINED AFTER 48 HOURS, ETHYL ACETATE,90.6%: CHLOROFORM, 86.7%: DICHLOROMETHANE, 83.6%: TOLUENE, 90.8%.
WHEN THE PLANT MATERIAL WAS EXTRACTED WITH VARIOUS SOLVENTS AND THE EXTRACT KEPT UNDER UV LIGHT FOR THREE HOURS, THE FOLLOWING PERCENTAGES OF VASICINE WERE FOUND:
40% ETHANOL,97.6%: METHANOL,97.2%: ETHYL ACETATE,6.4%: CHLOROFORM,76.1%: DICHLOROMETHANE,75.7%: TOLUENE,35.8%. |