Table 4.
Acidic triterpene features annotation and quantitation.
| ID# | Putative Name | Formula | MSI Level | Rt (min) |
m/z [M-H]− |
MS/MS (m/z) | Concentration (g kg−1) ± SD | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PHR n = 3 | sd | ATCE n = 3 | sd | AMCE n = 3 | sd | |||||||
| 1 | 3-oxo -tirucalla-8,24-dien-21-oic acid | C30H46O3 | 1 | 15.1 | 453.3384 | 435.3234, 371.2563 339.2671 |
80.64 | ±3.23 | 157.10 | ±0.99 | 15.31 | ±0.38 |
| 2,3 | Oleanolic-Ursolic acid | C30H48O3 | 1 | 12.3 | 455.3510 | 407.3306 | 1.85 | ±0.52 | 2.40 | ±0.13 | 1.93 | ±0.03 |
| 4 | 3α-Hydroxy-tirucalla-7,24-dien-21-oic acid | C30H48O3 | 1 | 14.3 | 455.3511 | 437.3391, 373.2720, 339.2676 | 7.62 | ±0.18 | 3.77 | ±1.21 | 1.26 | ±0.45 |
| 5 | 3α-Hydroxy-tirucalla-8,24-dien-21-oic acid | C30H48O3 | 1 | 14.9 | 455.3541 | 437.3394, 373.2720, 373.2728 | 77.71 | ±1.29 | 130.40 | ±13.21 | 11.64 | ±4.24 |
| 6 | 3β-Hydroxy-tirucalla-8,24-dien-21-oic acid | C30H48O3 | 1 | 15.9 | 455.3540 | 437.3391, 409.3411, 373.2720 | 60.14 | ±9.66 | 107.87 | ±7.13 | 8.38 | ±2.37 |
| 7 | Gypsogenin | C30H46O4 | 2 | 10.4 | 469.3324 | 451.3125, 391.2664, 358.2769 | 0.34 | ±0.02 | 0.35 | ±0.03 | n.d. | n.d. |
| 8 | Siaresinol | C30H48O4 | 2 | 13.7 | 471.3490 | 453.3341, 389.2664, 357.2771 | 2.99 | ±0.15 | 3.73 | ±0.43 | n.d. | n.d. |
| 9 | Maslinic Acid | C30H48O4 | 2 | 14.6 | 471.3488 | 453.3344, 389.2660, 357.2771 | 2.90 | ±0.07 | 4.07 | ±0.58 | n.d. | n.d. |
| 10 | 3α Acetyl -tirucalla-8,24-dien-21-oic acid | C32H50O4 | 2 | 17.1 | 497.3641 | 437.3434, 479.3541, 415.2862 | 4.01 | ±1.25 | 6.29 | ±0.66 | n.d. | n.d. |
| 11 | 3β-Acetyl-tirucalla-8,24-dien-21-oic acid | C32H50O4 | 2 | 18.0 | 497.3640 | 437.3431, 479.3544, 415.2862 | 6.62 | ±2.47 | 12.71 | ±2.03 | n.d. | n.d. |
| Sum (g kg−1) | 234.65 | ±14.39 | 415.26 | ±18.98 | 30.23 | ±6.06 | ||||||
The table reports the identification number (ID#), molecular formula, MSI identification level, retention time (RT), the accurate m/z and the main fragments of identified compounds; Quantitative values are expressed as g kg−1 and are the mean of at least three replicates. ± standard deviation.