Co⁶⁰γ-線照射の生揚げに及ぼす影響IX

“コールド・トラップ” と活性炭による揮発性化合物の捕集効率に関する検討

抄録

The analyses of the oil extracted from the meant of fried soy bean curd according to Floch's method 7) showed the absence of sulfur but the presence of phoshorus. presumably indicating the presence of phoshatides. The oil was found to contain. about 70% linoleic and 12-15% linolenic acids. Activated charcoal was found to be much more efficient in trapping both volatile acid and carbonyl compounds than cold traps in a dry ice-acetone bath. It appeared that the number of days elapsed after extraction of the oil affected the number of the carbonyl compounds detected on the paper chromatogr ams, i. e., three distinct spots could be detected at four days after extraction of the oil but the one with Rf 0.01-0.04 disappeared after 20 days and the one with Rf 0.84 was disintegrated to give four different compounds.