Studies on the Lipoxidase in Fish Tissues-II:Lipoxidase Action of Liver and Dark Muscle

概要

論文の詳細を見る
Carotenoids are oxidized secondarily by the peroxide of linoleate which has been formed by the soybean lipoxidase. As for the oxidation of linoleate by animal tissues, there are some investigators postulating that it might be caused by heme compounds in the tissues, while others are of opinion that the lipoxidase action in animal tissue is essential. Present authours, observing the oxidation of β-catotene by the extracts of liver and dark muscle of fish, found that these tissues oxidize β-carotene in the presence of linoleate. The optimum pH for the reaction was found to be at 6.98 which differs from the optimum pH for the β-carotene-bleaching activity of hemoglobin. As for the optimum temperature, two values were found for liver extract: 14° and 45°C. From this result, it seems likely that the prerent extract contained two components which catalyze the oxidation of β-carotene at different temperatures.
社団法人日本水産学会の論文