% saturated fatty acids % PUFA Unsaturation Index
Fraction Fresh CAP       AR Fresh CAP       AR Fresh CAP         AR
F4 55.9 ± 6.9a 40.4 ± 2.7b 55.8 ± 9.1b 22.3 ± 3.5 20.3 ± 10.7 15.8 ± 5.4 133.6 ± 19.1 130.0 ± 52.8 123.6 ± 18.6
F5 57.4 ± 8.4a 41.1 ± 7.6b 49.2 ± 18.4a,b 18.0 ± 8.5a 18.2 ± 2.3a 39.8 ± 15.5b 121.9 ± 43.0 143.1 ± 5.7 232.8 ± 108.9
DRMs 56.6 ± 4.8a,1 40.8 ± 3.6b 52.5 ± 8.6a,1 20.1 ± 4.2 a,1 19.2 ± 4.9 a,1 27.8 ± 9.6 b 127.8 ± 21.2 136.6 ± 23.9 178.2 ± 55.0
F10 42.8 ± 6.8a 35.6 ± 4.3a 52.0 ±   2.0b 33.4 ± 3.8 29.5 ± 6.2 30.3 ± 3.7 211.6 ± 23.8 185.6 ± 17.7 208.4 ± 40.7
F11 47.5 ± 7.4 40.1 ± 3.9 46.9 ± 1.7 24.8 ± 10.3 28.0 ± 7.0 27.6 ± 8.2 165.8 ± 53.9 158.7 ± 21.9 226.1 ± 8.0
F12 45.6 ± 5.8 42.6 ± 5.1 46.0 ± 11.5 24.6 ± 9.5 24.2 ± 7.6 26.2 ± 0.6 165.7 ± 47.7 150.8 ± 14.7 200.9 ± 36.2
F13 45.3 ± 5.8a 36.3 ± 2.6b 40.0 ±7.9a,b 27.7 ± 3.4a 35.8 ± 3.3b 23.6 ± 3.9a 182.2 ±26.0 169.7 ± 8.9 203.4 ± 34.4
Non-DRMs 45.3 ± 2.8a,2 38.7 ± 1.9b 46.2 ± 3.1a,2 27.6 ± 3.3 2 29.3 ± 2.9 2 26.9 ±2.0 181.4 ± 17.9 166.3 ± 8.0 209.7 ± 12.8
Different superscript letters between columns indicate significant differences (P< 0.01).
Different superscript numbers between rows indicate significant differences (P< 0.05).
CAP: capacitated; AR: acrosome reacted.
Table 2: Analysis of fatty acids by gas chromatography infractions obtained from the Optiprep gradients (n=3).