The most influential variable observed
for the extraction was the ethanolic strength of the solvent. The optimized condition
involves an extraction time of 12 h, agitation speed of 30 rpm, drug to solvent
ratio of 1/6, extraction temperature of 80 ºC and the solvent with ethanolic strength
of 70%. The data reported herein are useful for further developments of curcuma
phytopharmaceutical intermediate products with optimized characteristics.