Table 6

Effects of synthetic CLA or high CLA beef on fatty acid composition of inguinal fat of the rats

Treatment diets

CON

SCLA

CONM

CLAM

Lipid (% tissue)

85.09 ± 2.2

76.94 ± 1.68

81.30 ± 2.50

84.22 ± 4.42

Fatty acid concentration (mg/100 mg of detected fatty acids)

C14:0*

0.58 ± 0.094

1.48 ± 0.441

2.03 ± 0.097

2.48 ± 0.39

C14:1 c

0.00 ± 0.005^A

0.00 ± 0.005^A

0.55 ± 0.013^B

0.50 ± 0.42^B

C16:0

22.97 ± 1.59

25.45 ± 1.08

23.50 ± 0.29

24.30 ± 2.25

C16:1 c

5.14 ± 0.23^AB

3.53 ± 0.16^A

8.05 ± 0.29^C

7.56 ± 0.66^BC

C18:0

3.51 ± 0.29^A

3.02 ± 0.07^A

4.15 ± 0.40^AB

5.04 ± 0.27^B

C18:1 t11

0.42 ± 0.91

0.64 ± 1.72

0.71 ± 1.17

3.67 ± 1.21

C18:1 c9

27.56 ± 2.32^A

24.53 ± 2.01^A

52.23 ± 0.73^C

46.44 ± 4.10^B

C18:2 c9, c12

30.77 ± 2.28^B

26.63 ± 1.77^B

2.87 ± 0.19^A

3.50 ± 0.99^A

C18:3

3.25 ± 0.06^C

2.58 ± 0.05^B

0.18 ± 0.01^A

0.29 ± 0.02^A

CLA c9, t11

0.00 ± 0.04^A

4.54 ± 0.08^C

0.42 ± 0.01^B

0.79 ± 0.09^B

CLA t10, c12

0.19 ± 0.002^A

2.92 ± 0.031^B

0.08 ± 0.002^A

0.32 ± 0.008^A

C20:4

0.53 ± 0.026^B

0.27 ± 0.024^A

0.09 ± 0.015^A

0.05 ± 0.012^A

C22:5

0.42 ± 0.005

0.25 ± 0.006

0.16 ± 0.003

0.50 ± 0.001

C22:6

0.63 ± 0.015

0.49 ± 0.009

0.69 ± 0.009

0.80 ± 0.003

UNS/Total FA

0.72 ± 0.01^B

0.69 ± 0.01^AB

0.69 ± 0.00^AB

0.67 ± 0.01^A

UNS/SAT

2.61 ± 0.1^B

2.24 ± 0.1^AB

2.22 ± 0.04^AB

2.05 ± 0.1^A

C18:2/C18:3

9.18 ± 0.32^A

12.94 ± 0.21^AB

15.98 ± 2.46^B

16.66 ± 4.15^B

A-C: Means (± standard error) in a row denoted by a different letter differ (p < 0.05); n = 7

*denoted as Carbon chain length: number of unsaturated bonds in trans (t) or cis (c) position and location

CON – Control diet, SCLA – diet with 1.69% synthetic CLA replacing an equivalent amount of soybean oil, CONM – Diet containing control beef (see table 1), CLAM – diet containing high CLA beef (see table 1).

He et al. Nutrition & Metabolism 2009 6:19   doi:10.1186/1743-7075-6-19