Carotene cooxidation activity of tomato lipoxygenase‐2

Abstract
The tomato isoenzyme lipoxygenase‐2 presented a carotene cooxidation activity; it showed more activity with linoleic acid as substrate than with linolenic acid. The lipoxygenase was inhibited by reagents of the disulphide groups (dithiothreitol and 2‐mercaptoethanol) and —SH groups ((4‐hydroxymercuri)benzoic acid and iodoacetamide) and some antioxidants.