Abstract
The characteristics and the component fatty acids of the acetone-soluble lipid contained in Euphausia superba collected in the Atrantic Ocean, were studied.
The paper chromatography indicated the presence of myristic, palmitic, stearic, arachidic and behenic acid as saturated fatty acids, and zoomaric, oleic, eicosenoic, erucic, linoleic, and linolenic acid as unsaturated fatty acids.
The mixed fatty acids, prepared from the lipid by alkalihydrolysis, were separated into three portions, solid, lower and higher unsaturated acids by means of lead salt-ethanol and lithium salt-acetone methods, then their methyl esters were fractionated respectively through the E.H.P. column.
According to the calculation of Hilditch, the component fatty acids of the acetone-soluble lipid, were as follows saturated fatty acids; 31.78% (myristic 5.84%, palmitic 11.41%, stearic 10.19%, arachidic 4.15%, and behenic 0.19%), unsaturated fatty acids; 68.22% {C14 acids (-2.0H) 0.36%, C16 acids (-2.3H) 14.50%, C18 acids (-3.3H) 24.97%, C20 acids (-6.2H) 20.38%, and C22 acids (-5.4H) 8.01%}.
