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. 2021 Jul 5;10(7):1077. doi: 10.3390/antiox10071077

Table 4.

Fatty acids detected in raw and LABs fermented brown rice.

S. No Sample Name Retention Time Peak Area Adduct/Charge Precursor Mass Found at Mass Formula Finder Result Fatty Acid
1 Raw BR 39.97 1.91 × 102 [M − H]− 255.234 255.2331 C16H32O2 Palmitic Acid
L. plantarum FBR 1.94 5.15 × 103 [M − H]− 255.234 255.2331
L. fermentum FBR 28.03 4.28 × 103 [M − H]− 255.234 255.2332
L. reuteri FBR 23.73 1.53 × 104 [M − H]− 255.234 255.2332
2 Raw BR ND ND [M + H]+ ND ND C5H10O2 Valeric acid
L. plantarum FBR ND ND [M + H]+ ND ND
L. fermentum FBR ND ND [M + H]+ ND ND
L. reuteri FBR 22.88 1.02 × 103 [M + H]+ 185.066 185.0663
3 Raw BR 46.24 5.29 × 103 [M − H]− 279.234 279.2332 C18H32O2 Linoleic Acid
L. plantarum FBR 46.26 6.56 × 105 [M − H]− 279.234 279.2332
L. fermentum FBR 46.24 6.16 × 105 [M − H]− 279.234 279.2334
L. reuteri FBR 46.25 6.64 × 105 [M − H]− 279.234 279.2334
4 Raw BR 47.28 1.45 × 105 [M + H]+ 271.264 271.2637 C17H34O2 Heptadecanoic acid
L. plantarum FBR 47.28 1.44 × 106 [M + H]+ 271.264 271.2636
L. fermentum FBR 47.26 1.44 × 106 [M + H]+ 271.264 271.2637
L. reuteri FBR 47.27 1.45 × 106 [M + H]+ 271.264 271.2638
5 Raw BR 27.69 5.28 × 103 [M − H]− 283.265 283.2644 C18H36O2 Stearic acid
L. plantarum FBR 49.10 1.23 × 106 [M − H]− 283.265 283.2645
L. fermentum FBR 49.09 1.20 × 106 [M − H]− 283.265 283.2644
L. reuteri FBR 49.10 1.24 × 106 [M − H]− 283.265 283.2645
6 Raw BR 34.57 3.18 × 104 [M − H]− 243.161 243.1605 C13H24O4 Tridecanedioic acid
L. plantarum FBR 34.58 2.98 × 105 [M − H]− 243.161 243.1606
L. fermentum FBR 34.58 2.90 × 105 [M − H]− 243.161 243.1604
L. reuteri FBR 34.57 3.01 × 105 [M − H]− 243.161 243.1605
7 Raw BR ND ND [M + H]+ ND ND C12H20O3 Traumatin
L. plantarum FBR 32.80 2.64 × 105 [M + H]+ 213.149 213.1491
L. fermentum FBR 32.82 4.26 × 105 [M + H]+ 213.149 213.1492
L. reuteri FBR 32.82 5.20 × 105 [M + H]+ 213.149 213.1492
8 Raw BR ND ND [M − H]− ND ND C18H32O5 Octadecadienoic acid/Corchorifatty acid F
L. plantarum FBR ND ND [M − H]− ND ND
L. fermentum FBR ND ND [M − H]− ND ND
L. reuteri FBR 30.87 4.08 × 105 [M − H]− 327.219 327.2181
9 Raw BR ND ND [M − H]− ND ND C6H12O4 Mevalonic Acid
L. plantarum FBR 3.49 7.39 × 104 [M − H]− 147.067 147.0667
L. fermentum FBR ND ND [M − H]− ND ND
L. reuteri FBR 3.47 3.13 × 105 [M − H]− 147.067 147.0667
10 Raw BR 22.59 3.99 × 104 [M − H]− 187.099 187.0979 C9H16O4 Azelaic Acid
L. plantarum FBR 22.50 2.77 × 105 [M − H]− 187.099 187.0979
L. fermentum FBR 22.61 6.12 × 104 [M − H]− 187.099 187.0978
L. reuteri FBR 22.50 6.25 × 105 [M − H]− 187.099 187.0979
11 Raw BR ND ND [M − H]− ND ND C9H18O3 9-Hydroxynonanoic acid
L. plantarum FBR 23.49 3.10 × 104 [M − H]− 173.119 173.1187
L. fermentum FBR 23.50 3.49 × 103 [M − H]− 173.119 173.1188
L. reuteri FBR 23.48 1.39 × 105 [M − H]− 173.119 173.1186
12 Raw BR 39.06 2.45 × 103 [M − H]− 313.24 313.2389 C18H34O4 Octadecanedioic acid
L. plantarum FBR 39.07 3.52 × 105 [M − H]− 313.24 313.2388
L. fermentum FBR 39.06 3.22 × 105 [M − H]− 313.24 313.2389
L. reuteri FBR 39.06 3.83 × 105 [M − H]− 313.24 313.2386
13 Raw BR ND ND [M − H]− ND ND C18H34O5 Pinellic acid
L. plantarum FBR 33.48 3.12 × 105 [M − H]− 329.234 329.2337
L. fermentum FBR 33.48 3.54 × 104 [M − H]− 329.234 329.2339
L. reuteri FBR 32.82 7.37 × 106 [M − H]− 329.234 329.2331

ND—not detected, BR—brown rice, and FBR—fermented brown rice.