CFR 21-173.280-2013 Food and drugs. Part173:Secondary direct food additives permitted in food for human consumption. Section173.280:Solvent extraction process for citric acid.
A solvent extraction process for recovery of citric acid from conventional Aspergillus niger fermentation liquor may be safely used to produce foodgrade citric acid in accordance with the following conditions: (a) The solvent used in the process consists
CFR 21-173.280-2013 history
2013CFR 21-173.280-2013 Food and drugs. Part173:Secondary direct food additives permitted in food for human consumption. Section173.280:Solvent extraction process for citric acid.