title: Isotopic composition of carbon in vinegars.
abstract: Measurements of delta 13C and 14C-activity were performed on vinegars from various known sources. Natural vinegar can be distinguished from petrochemical acetic acid by 14C-analysis: Natural vinegar currently gives values of greater than 112% of modern activity; petrochemical acetic acid yields values of 0% of modern activity. Apple cider vinegar can be distinguished from corn-derived vinegar by delta 13C-analysis: Cider vinegar gives delta 13C-values near -26%; corn-derived vinegars yield delta 13C-values near -10%. delta 13C-Analysis also can be applied, with some restrictions, to wine vinegars. These techniques are applied to a series of retail vinegars.
mesh_terms: D000085:Acetates / Q000032:analysis*; D019342:Acetic Acid; D002247:Carbon Isotopes / Q000032:analysis*; D002250:Carbon Radioisotopes / Q000032:analysis*; D005506:Food Contamination / Q000032:analysis*; D005638:Fruit / Q000032:analysis; D014920:Wine / Q000032:analysis
chemical_list: D000085:Acetates; D002247:Carbon Isotopes; D002250:Carbon Radioisotopes; D019342:Acetic Acid