Journal of Chemistry and Biochemistry

Substrate Inhibition: Oxidation of D-Sorbitol and D-Dulcitol by Mn(VII) in Alkaline Medium
Dayo Felix Latona, Adegoke Emmanuel Akinola

Abstract
The oxidation of D-sorbitol and D-dulcitol by potassium permanganate in alkaline medium showed substrate inhibition for both substrates due to the formation of 1:1 manganese-sugar alcohol complex which resists oxidation. Consequently, the reaction was inverse first order with respect to sugar alcohol for both substrates, first order each with respect to [KMnO4], [OH-] and independent of ionic strength for both substrates investigated. Activation parameters were obtained and a plausible mechanism was proposed from kinetic and spectroscopic studies.

Full Text: PDF     DOI: 10.15640/jcb.v8n1a2