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1H NMR study of the conversion of 13(s)-hydroperoxy linoleic acid by soya bean lipoxygenase I

1978; Elsevier BV; Volume: 531; Issue: 2 Linguagem: Inglês

10.1016/0005-2760(78)90137-6

1879-145X

Maarten R. Egmond, Robert J. P. Williams,

Soybean genetics and cultivation

The conversion of 13(S)-hydroperoxy linoleic acid by lipoxygenase I at 298 K was monitored by 1H NMR and ultraviolet absorption spectroscopy. The rate constant for the conversion of the hydroperoxide, k = 45.8 +/- 7.5 M-1 . s-1, depends on the concentrations of both enzyme and hydroperoxide. This constant is not affected by O2, nor by solvent isotope effects.