Table 3. Weight percentage of fatty acids of flat iron (INF) and petite tender (TM) from beef steers1)
Fat% and fatty acid | Muscle | SEM | Fat% and fatty acid | Muscle | SEM |
INF | TM | INF | TM |
Fat% | 8.31a | 5.56b | 0.5921 | C18:3 ω3 | 0.34 | 0.37 | 0.0164 |
C8:0 | 0.02 | 0.03 | 0.0090 | C20:0 | 0.09 | 0.10 | 0.0115 |
C10:0 | 0.08 | 0.10 | 0.0167 | CLA 18:2c9t11 | 0.33 | 0.32 | 0.0312 |
C12:0 | 0.10 | 0.12 | 0.0214 | C20:3 ω6 | 0.20b | 0.29a | 0.0274 |
C14:0 | 3.01 | 2.92 | 0.0903 | C20:4 ω6 | 0.51b | 0.75a | 0.0605 |
C14:1t ω5 | 0.08b | 0.13a | 0.0226 | C22:4 ω6 | 0.03 | 0.05 | 0.0304 |
C14:1 ω5 | 0.66 | 0.65 | 0.0611 | C20:5 ω3 | 0.12 | 0.16 | 0.0394 |
C15:0 | 0.56 | 0.57 | 0.0298 | C22:5 ω3 | 0.13 | 0.14 | 0.0193 |
C16:0 | 24.53 | 24.33 | 0.2246 | C22:6 ω3 | 0.02 | 0.02 | 0.0052 |
C16:1 ω7 | 2.80 | 2.59 | 0.1176 | Total trans | 4.23 | 4.71 | 0.2580 |
C17:0 | 1.47 | 1.43 | 0.0419 | PUFA | 5.71b | 6.73a | 0.3422 |
C17:1 ω5 | 1.01 | 0.95 | 0.0370 | SFA | 43.64 | 43.42 | 0.4637 |
C18:0 | 13.74 | 13.80 | 0.3934 | ω6 | 4.77b | 5.71a | 0.3160 |
C18:1t2) | 3.68 | 4.09 | 0.2538 | ω3 | 0.61 | 0.70 | 0.0516 |
C18:1 ω9 | 36.38a | 34.28b | 0.7978 | ω6:ω3 | 8.16 | 8.91 | 0.4855 |
C18:1d11 ω7 | 1.58b | 1.74a | 0.0618 | Total | 95.55a | 94.59b | 0.3233 |
C18:2 ω6 | 3.90b | 4.45a | 0.2652 | Others | 4.45b | 5.41a | 0.3233 |
C18:2t ω6 | 0.13 | 0.17 | 0.0267 | | | | |
Weight percentage values are relative percentage of all peaks observed by gas chromatography.
Includes transvaccenic ω7, elaidic ω9, and ricinelaidic ω9 isomers.
Means having different superscripts within row are significantly different.
TM, teres major.