The lipid of a fresh water plankton,
Neomysis intermedia Czerniaysky, was examined.
Neomysis intermedia (a fresh water plankton) and
Neomysis nakazawai Ii (a marine plankton) belong to the same genus, and it is interesting to compare the properties of the lipids each other.
The ether extract was obtained from the sun-dried material of the plankton caught at Lake Kasumiga-ura, Ibaragi Prefecture. The content of the lipid was 3.9% of dry matter. Properties of the lipid were as follows :
n20D 1.4821, S.V. 150.0, I.V. 109.8, A.V. 76.7, and unsaponifiable matter 17.89%.
The fatty acids of the lipid were composed of 42% of saturated acids (C
14 4.5%, C
16 24.5%, C
18 11.5%, C
20 1.5%) and 58% of unsaturated acids (C
14 1%, C
16 11%, C
18 18%, C
20 and C
22 28%). The lipid contained larger amount of saturated C
16 and C
18 acids, and smaller quantity of unsaturated C
20 and C
22 acids than that of
Neomysis nakazawai Ii, a marine plankton. In comparison with the lipid of some of the fresh water species, the lipid of
Neomysis intermedia was poor in the amount of unsaturated C
16 and C
18 acids, and rich in saturated C
16 and C
18 acids.
抄録全体を表示