Conjugated Linoleic Acid Production by Bifidobacteria: Screening, Kinetic, and Composition
Table 3
Relative composition (%) of esterified and free fatty acids (EFAs and FFAs, resp.) in the biomass of B. breve WC 0421 at the exponential and the stationary phase in MRS and MRS-LA.
MRS
MRS-LA
Exponential
Stationary
Exponential
Stationary
EFA
EFA/total FA
93
92
26
25
C10
0.8
1.7
1.2
1.7
C12
2.8
4.2
3.9
4.2
C14
8.6
16.6
13.7
15.7
C16
17.4
21.5
18.9
22
C16:1
1.1
1.9
1.9
2
C17
0.9
0.5
0
0.4
C18
4.2
3.1
0.0
1.7
C18:1
55.8
41.3
50.9
43.9
C18:2
LA
2.1
3.2
3.7
3.1
C18:2
9cis,11trans-CLA
1.6
1.2
0.9
1
C18:2
9trans,11trans-CLA
3.6
3.9
5
4
C20
0.3
0.3
0
0.1
C22
0.8
0.5
0
0.4
FFA
FFA/total FA
7
8
74
75
C10
0
0
0
0
C12
0
0
0
0
C14
3.2
12.7
1.2
0.6
C16
23.6
22.0
5.7
2.4
C16:1
0
0
0
0
C17
3.1
1.6
0.6
0.3
C18
10.4
6.8
2.5
1.2
C18:1
47.0
46.2
13.9
8.3
C18:2
LA
0.0
0.0
1.7
2.8
C18:2
9cis,11trans-CLA
2.1
2.7
58.6
56.6
C18:2
9trans,11trans-CLA
3.3
7.1
15.2
27.0
C20
4
0.9
0.2
0.4
C22
3.2
0
0.5
0.3
Values are means, ; SD always < 5%. Means in a row with different superscripts significantly differ ().
