15 g of coarsely ground, dehydrated peels of passion were
weighed in a 1000 mL glass beaker. 400 mL Hydrochloric acid of
0.05 molar equivalent/L was added to the peel and boiled gently for
2 h. The water lost by evaporation was replaced. The contents were
cooled and transferred to a 500 mL volumetric flask and the volume
made up with distilled water. The extract was filtered through No. 4
Whatman paper. 200 mL aliquot of the filtrate was taken in