The invention provides a method for removal of
aflatoxin from peanut
skin. The method includes the steps of: (A) pre-treating peanut
skin, then conducting ultrasonic extraction to obtain an extracted liquid, and subjecting the extracted liquid to
filtration and pressure reduced
distillation to obtain a concentrated solution; (B) adding water into the concentrated solution to perform
dilution, then passing the diluted concentrated solution through
macroporous resin to conduct
chromatography adsorption separation, controlling the speed of the solution flowing through the
macroporous resin at 0.3-0.5mL / min, then conduction
elution with an
ethanol water solution with a
volume percentage concentration of 3-40%, controlling the
elution flow speed at 3-5mL / min, collecting the eluent and performing
evaporation and concentration. The method for removal of
aflatoxin from peanut
skin provided by the invention has the characteristics of mild operation conditions and low cost, can ensure the quality of the extracted proantho cyanidins and also can well remove the
aflatoxin therein, enhances the follow-up application
food safety of proantho cyanidins extracted from peanut skin, causes no
hazard to
human health, and is very suitable for extensive application and promotion.