脂質の榮養價に関する研究-IX : アブラザメ重合肝油の榮養價

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In a previous paper* we reported that the liver oils of sharks including angel shark, ground shark, and dog fish, showed nutritive value almost same as that of soy-bean oil. And no detrimental effect has been noticed in the rats fed with diets containing the oils. This result suggests that some of the shark liver oils can be refined into edible oil. However, all the liver oils give off an odor characteristic of fish. As a result of our experiment the fishy odor in liver oil could bedeodorized by polymerization, then by treating the polymerized oil thus obtained with steam distillation in vacuum. The authors, therefore, have carried out an additional series of feeding experiments of rats with fat-free basal diets containing original liver oil of dog fish, its polymerized oil, deodorized oil obtained from the above polymerized product by steam distillation, or soy-bean oil as control, to compare nutritive effects upon them. We have found that nutritive value of the original liver oil was slightly lower than that of soy-bean oil. However, the polymerized oil and its deodorized product proved more nutritious than that of the other oils. Bull. Jap. Soc. Sci. Fisheries. Vol. 18. 2, 85 (1952)
公益社団法人日本水産学会の論文