Oxidation of  -apocarotenals to  -apocarotenoic acids with silver oxide.
D000447:Aldehydes; D002338:Carotenoids / Q000032:analysis / Q000138:chemical synthesis*; D009682:Magnetic Resonance Spectroscopy; D008722:Methods; D010084:Oxidation-Reduction; D010087:Oxides; D012834:Silver; D013055:Spectrophotometry, Infrared
D000447:Aldehydes; D010087:Oxides; D002338:Carotenoids; D012834:Silver