Patent ID: 9580668
Date: 2017-02-28
CPC Classifications: A23L,A23V,B01D,B01J,C11B

Claim:
1. A process for producing a purified citrus oil, comprising a) contacting a citrus oil comprising a contaminant with an active carbon to prepare a suspension; b) stirring the suspension at a temperature of from −30° C. to 5° C. for 10 minutes to 2 hours; and c) recovering the purified citrus oil from which the contaminant is removed, wherein the active carbon is an activated active carbon activated with zinc chloride, wherein the contaminant is a residual agricultural chemical which is one kind or a mixture of two or more kinds selected from ortho-phenyl phenol, chloroneb, simazine, carbaryl, chlorpyrifos, imazalil, thiabendazole and diphenyl, wherein the active carbon is added in an amount of 0.5 to 10% by mass, based on the mass of the citrus oil comprising a contaminant, and wherein flavor and odor components of the citrus oil, selected from the group consisting of nootkatone, octanal, nonanal, decanal, dodecanal and linalool, remain unchanged in the obtained purified citrus oil.