Process for producing polymethoxyflavones with excellent temporal stability and reduced amount of residual agricultural chemicals

摘要

A large amount of polymethoxyflavones can be separated from other components at the same time from the peel oil of the mandarin orange plant, and it is inexpensive, highly safe to use for foods, highly stable, and easily formulated into various formulations. A method for producing versatile polymethoxyflavones and a method for using the same. A method for producing polymethoxyflavones from the peel oil of a mandarin plant, wherein a volatile component contained in the peel oil of the mandarin plant is removed by distillation to obtain a distillation residue, and the residue is subjected to a thin film vacuum distillation apparatus. The process of obtaining a fraction by distillation in step, the process of obtaining an extract by extracting the fraction with an aqueous ethanol solution, and removing the insoluble oil contained in the extract and purifying the extract by contacting with activated carbon A process for producing polymethoxyflavones having excellent stability over time and a reduced amount of residual agricultural chemicals.