Objective:To optimize fried extraction process of Arnebia euchroma from Yuhong ointment. Method:With yield of hydroxyl naphthalene quinones total pigment as index

single factor test was performed to investigate kind of moistening solvent and the concentration of moistening solvent; UV-spectrophotometry was applied to determine the content of hydroxyl naphthalene quinones total pigment

fried extraction technology of A. euchroma was optimized by uniform design

which was used to investigate influence of moistening solvent concentration

solvent dosage

fired temperature and fired time on extraction process. Result:The best fried extraction technology was satisfied with some conditions as follows:moistened with 3.2 times the amount of 68.87% ethanol

fired temperature 160.15℃

fired time 1.96 min. Conclusion:This optimized extraction process was reasonable and stable

it could provide test basis for traditional fried extraction process of A. euchroma.