Further Studies on Ethylene Formation from &Keto-y- methylthiobutyric Acid or P-Methylthiopropionald.ehyde by Peroxidase in the Presence of Sulfite and Oxygen*
نویسنده
چکیده
Ethylene is readily produced aerobically from oc-keto-ymethylthiobutyric acid as well as from fl-methylthiopropionaldehyde (methional) by peroxidase in the presence of Mn2+, SOa2-, and phenol. Tracer studies indicate that carbons 1, 2, 3 plus 4, and the methyl carbon of oc-keto-y-methylthiobutyric acid gives rise to carbon dioxide, carbon dioxide, ethylene, and methyldisulfide, respectively. Carbons 1, 2 plus 3, and the methyl carbon of methional give rise to formic acid, ethylene, and methyldisulfide, respectively. A chemical mechanism accounting for the production of these products is described in which the peroxidase functions as lelectron oxidizing agent.
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تاریخ انتشار 2003