AN IMPROVED PROCESS FOR THE EXTRACTION OF BETACYANIN DYE FROM THE FLOWERS OF CELOSIA ARGENTEA VAR. CRISTATA

摘要

An improved process for the extraction of betacyanin dye from flowers of Celosia argentea var. cristata belonging to the family Amaranfhaceae by extracting the shade dried and chopped flowers with water of with a water and polar solvent, at least two times , followed by mixing both the filtrates, removing the solvent under vacuum at a temperature ranging between 60-10? C from the filtrate and at a pressure ranging between 60-70 cm of Hg to obtain betacyanin dye with the total dry mass of the dye being in the range of 15 to22 % on dry weight basis