Table 3.8 Composition of fatty acids (mol% of the total) esterified to each position of the triacyl-sn-glycerols in the milks of various species
cow Human Rat Pig Rabbit Seal Echidna
Fatty
acid sn-1 sn-2 SIT-3 sn-l sn-2 sn-3 sn-l sn-2 sn-3 sn-l sn-2 sn-3 sn-l sn-2 sn-3 sn-l sn-2 sn-3 sn-1 sn-2 sn-3
~~
4:O -
6:O - 0.9
8:O 1.4 0.7
lo:o 1.9 3.0
12:o 4.9 6.2
14:O 9.7 17.5
16:O 34.0 32.3
16: 1 2.8 3.6
18:O 10.3 9.5
18: 1 30.0 18.9
18:2 1.7 3.5
18:3 - -
c20-c22 - -
35.4 - -
12.9 - -3.6 - - 3.7 5.7 10.0 - - 19.2
6.2 0.2 0.2 1.1 10.1 20.0 26.0 - - - - 22.5
0.6 1.3 2.1 5.6 10.4 15.9 15.1 - - 3.5
6.4 3.2 7.3 6.9 9.6 17.8 8.9 2.4 6.8 3.7 2.7 2.1
5.4 16.1 58.2 5.5 20.2 28.7 12.6 21.8 57.6 15.4 24.1 12.7
1.4 3.6 4.7 7.6 1.8 2.1 1.8 6.6 11.2 10.4 4.1 1.3
1.2 15.0 3.3 1.8 4.9 0.8 1.5 6.9 1.1 5.5 6.9 3.5
23.1 46.1 12.7 50.4 24.2 3.3 11.8 49.6 13.9 51.7 40.8 16.6
2.3 11.0 7.3 15.0 14.1 5.2 11.6 11.3 8.4 11.5 15.6 15.1
- 0.4 0.6 1.7 1.2 0.5 0.7 1.4 1.0 1.8 3.4 3.5
33.7 38.9 - - - --
22.5 26.1 - - - --
2.8 1.8 0.3 0.2 - --
2.6 0.7 23.6 3.8 1.7 0.9 0.4
23.8 6.1 31.0 1.0 31.5 9.0 27.9
0.9 1.9 0.7 1.0 16.8 2.1 14.3
3.8 11.4 19.4 45.4 33.1 57.6 39.8
6.4 9.7 2.3 2.8 4.1 18.3 4.9
2.0 2.3 0.5 0.7 1.0 2.9 2.0
1.5 1.1 16.8 14.1 - --
- -- 0.8 28.7 - --
From Christie (1995).