Fatty acids and unsaponifiable matters from the liver oils of
Chionoecetes opilio, Lithodes turritus and
Paralithodes camtschatica were examined. It was found that these liver oils were composed of C
12C
24 fatty acids, in which major component was oleic acid, by GLC analysis.
Unsaponifiables were fractionated by low temperature fractional crystallization. The precipitate obtained from the unsaponifiables of
Paralithodes camtschatica liver oil was further fractionated into two fractions. It was found that one of the fractions contained cholesterol and ergosterol and that the other consisted of C
8C
19 α-alkyl glyceryl ethers by comparing their IR and NMR spectra with those of the authentic samples and by GLC analyses. From the mother liquors obtained from these liver oils, four fractions were obtained, respectively, by means of column chromatography and preparative TLC, and they were confirmed to be C
10C
20 saturated hydrocarbons, C
11C
18 aliphatic alcohols, higher aliphatic aldehydes and methyl ketones.
View full abstract