TABLE 3.
Relative intensities of majority ions of ring 13C-labelled aryl metabolites produced by B. adusta following addition of ring 13C-labelled l-phenylalanine and relative intensities of majority ions of unlabelled aryl metabolites when unlabelled l-phenylalanine was added
| Aromatic compound | Relative intensity (%) |
|---|---|
| Unlabelled benzaldehyde | m/z 106(75), 105(80), 77(100), 51(80), 29(35) |
| [13C]benzaldehyde | m/z 112 (70), 111 (80), 83(100), 55 (75), 29 (40) |
| Unlabelled benzyl alcohol | m/z 108(50), 79(99), 78(60), 51 (49), 39(30), 29(30) |
| [13C]benzyl alcohol | m/z 114(52), 85(99), 55(49), 42 (25), 29(43) |
| Unlabelled phenylpyruvic methyl ester | m/z 178(45), 118(35), 91(99), 65(37) |
| [13C]phenylpyruvic methyl ester | m/z 184(20), 124(25), 97(99), 69(45) |
| Unlabelled mandelic methyl ester | m/z 166(10), 107(99), 78(60), 79(76) |
| [13C]mandelic methyl ester | m/z 172(15), 113(99), 84(55), 85(99) |
| Unlabelled trans-cinnamic acid | m/z 147(65), 141(6), 126(10), 91(77), 41(100) |
| [trans-13C]cinnamic acid | m/z 153(60), 147(20), 133(20), 97(35), 43(100) |
| Unlabelled α-hydroxyphenylpropionic methyl ester | m/z 180(0), 162(38), 121(10), 103(18), 91(99), 65(17) |
| [α-13C]hydroxyphenylpropionic methyl ester | m/z 186(0), 168(25), 97(99), 109(20), 127(10), 69(17) |
| Unlabelled β-phenylpropionic methyl ester | m/z 180(35), 120(10), 107(99), 79(90) |
| [β-13C]phenylpropionic methyl ester | m/z 186(40), 126(20), 113(99), 85(95) |
| Unlabelled acetophenone | m/z 120(25), 105(90), 77(99), 51(50) |
| [13C]acetophenone | m/z 126(25), 111(95), 83(99), 57(55) |