Kinetics of the reaction of sorbic acid with sulphite species.
Under aerobic conditions, the reaction of sorbic acid with sulphite species, S(IV), involves a pH-dependent oxidative mechanism with the loss of S(IV). Sorbic acid is essential to the process. In the absence of air, a much slower nucleophilic addition of sulphite ion to undissociated sorbic acid takes place.
Goddard
S J
SJ
Procter Department of Food Science, University of Leeds, UK.
Wedzicha
B L
BL
D000332:Aerobiosis; D000693:Anaerobiosis; D000975:Antioxidants / Q000737:chemistry; D005520:Food Preservatives / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D010084:Oxidation-Reduction; D010100:Oxygen / Q000737:chemistry; D013011:Sorbic Acid / Q000737:chemistry*; D013447:Sulfites / Q000737:chemistry*
D000975:Antioxidants; D005520:Food Preservatives; D013447:Sulfites; D010100:Oxygen; D013011:Sorbic Acid