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. 2011 May;77(10):3327–3334. doi: 10.1128/AEM.02518-10

Table 2.

Fatty acid compositions of L. lactis subsp. cremoris MG1363 strains grown at 30°C on M17/7 medium or under sublethal stress conditions

Fatty acidd Fatty acid composition (molar %)a
M17/7 medium
M17/5 medium
M17/7 medium plus 6% ethanol
Wild type Δcfa strain Δcfa + pDLcfa Wild type Δcfa strain Δcfa + pDLcfa Wild type Δcfa strain Δcfa + pDLcfa
Iso-C15:0 0.00 ± 0.00 0.00 ± 0.00 0.00 ± 0.00 0.00 ± 0.00 0.00 ± 0.00 0.00 ± 0.00 6.84 ± 8.44 6.46 ± 3.19 13.33 ± 5.92
C14:0 9.21 ± 0.35 9.91 ± 0.75 11.07 ± 1.45 7.46 ± 1.09 6.86 ± 0.97 8.82 ± 1.08 10.45 ± 2.13 8.92 ± 0.73 9.95 ± 1.21
Anteiso-C15:0 5.15 ± 1.43 3.65 ± 0.28 3.77 ± 0.78 7.22 ± 0.50 5.71 ± 0.16 4.66 ± 3.58 0.00 ± 0.00 0.00 ± 0.00 0.00 ± 0.00
C16:0 22.63 ± 2.08 24.04 ± 1.32 23.59 ± 1.92 29.53 ± 1.47 28.34 ± 0.95 33.22 ± 1.82 23.12 ± 3.27 26.20 ± 2.93 30.34 ± 1.70
C16:1n-7 2.42 ± 0.53 2.16 ± 0.18 2.95 ± 1.31 2.13 ± 1.58 2.60 ± 1.84 0.00 ± 0.00 17.36 ± 5.76 16.45 ± 5.15 0.00 ± 0.00
A4b 7.59 ± 0.60 8.33 ± 0.46 3.96 ± 2.15 1.76 ± 1.44 16.23 ± 1.57 0.00 ± 0.00 0.40 ± 0.41 2.06 ± 0.81 0.00 ± 0.00
C18:0 1.33 ± 0.51 1.63 ± 0.79 1.54 ± 0.40 3.44 ± 0.71 3.93 ± 0.64 5.11 ± 0.99 6.31 ± 1.62 8.14 ± 3.29 10.11 ± 0.58
C18:1n-7 32.29 ± 5.67 50.28 ± 1.69 19.42 ± 4.86 3.60 ± 0.95 36.32 ± 1.91 0.00 ± 0.00 9.93 ± 1.72 31.77 ± 7.47 0.00 ± 0.00
A5b 1.23 ± 0.71 0.00 ± 0.00 4.70 ± 0.17 13.74 ± 0.67 0.00 ± 0.00 4.60 ± 2.86 0.27 ± 0.47 0.00 ± 0.00 0.00 ± 0.00
C19:0n-7 cyc 18.15 ± 3.23 0.00 ± 0.00 29.00 ± 3.69 31.11 ± 0.43 0.00 ± 0.00 43.58 ± 2.89 25.32 ± 2.41 0.00 ± 0.00 36.28 ± 3.61
CFA conversion (%)c 35.99 0.00 59.89 89.62 0.00 100.00 71.83 0.00 100.00
a

Samples were taken from stationary phase of growth. Each value is the mean obtained from three separate analyses. The summed data presented is shown as the mean value ± standard deviation of three replicate values.

b

Unidentified fatty acids.

c

CFA conversion = 100 × [Σ(C19:0n-7 cyc)/Σ(C19:0n-7 cyc + C18:1n-7)].

d

C14:0, myristic acid; C16:0, palmitic acid; C16:1n-7, palmitoleic acid; C18:0, stearic acid; C18:1n-7, cis-vaccenic acid; C19:0n-7 cyc, lactobacillic acid.