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. 2022 Feb 24;5:515–530. doi: 10.1016/j.crfs.2022.02.013

Table 2.

Characteristics of sixteen peaks from the GLE identified by HPLC-MS/MS in the negative ionization mode.

Peak No. Rt (min) UV λmax (nm) Molecular formula Tentative identification [M-H]- (m/z) Fragmentation pattern (MS2, m/z) Reference
1 10.237 256 C30H40O8 Elfvingic acid A 527.2595 509.2453, 465.2562, 421.2668, 317.1699 Yang et al. (2007)
2 14.850 255 C30H44O8 Ganoderic acid η 531.2866 513.2777,129.0527,111.0425 Yang et al. (2007)
3 18.933 254 C30H44O8 Ganoderic acid G 531.2929 513.2783, 469.2913, 451.2769, 436.2610, 319.1892, 265.1389, 249.1467 Yang et al. (2007)
4 21.751 254 C30H38O8 Ganosporeric acid A 525.2464 507.2344, 451.2106, 129.0529, 495.1996, 229.1176 Chen et al. (2019)
5 23.523 256 C30H42O8 Ganodoeric acid C6 529.2715 511.2592, 493.2432, 481.2115, 467.2702, 449.2608, 437.2232, 317.1724, 303.1524 Yang et al. (2007)
6 26.600 249 C30H42O7 Ganoderenic acid B 513.2810 451.2839, 436.2592, 287.1642, 249.1462 Yang et al. (2007)
7 27.501 254 C30H42O7 Ganoderic acid Xi 513.2764 495.2726, 465.2214, 451.2825, 383.2162, 331.1900, 235.1690, 151.1109, 73.0285 Chen et al. (2019)
8 29.497 253 C30H44O7 Ganoderic acid B 515.2975 497.2840, 453.2940, 438.2717, 420.2620, 303.1926, 263.1626, 249.1457, 195.1362 Yang et al. (2007)
9 33.993 256 C32H46O9 Ganoderic acid K 573.3030 555.2904, 511.2988, 469.2920, 451.2807, 302.1843, 265.1405 Yang et al. (2007)
10 37.460 253 C30H44O7 Ganoderic acid A 515.2923 497.2807, 453.2919, 435.2819, 195.0978 Yang et al. (2007)
11 38.257 254 C32H44O9 Ganoderic acid H 571.2862 553.2768, 511.2671, 467.2768, 437.2306, 423.2668, 303.1578 Yang et al. (2007)
12 41.500 245 C30H40O8 Ganoderic acid derivative 527.6340 n.d Yang et al. (2007)
13 42.840 254 C30H40O7 Ganoderic acid E 511.2671 493.2484, 449.2638, 434.2381, 285.1442 Guo et al. (2012)
14 44.873 256 C30H42O8 12-Hydroxyganoderic acid D 529.2702 511.2629, 493.2510, 449.2618, 434.2406, 301.1764 Yang et al. (2007)
15 47.163 256 C30H42O7 Ganoderic acid D 513.2782 495.2657, 451.2789, 301.1766, 283.1649, 247.1302, 193.1199 Yang et al. (2007)
16 50.530 260 C32H42O9 Ganoderic acid F 511.2602 493.2537, 449.2638, 434.2404, 247.1307, 149.0509 Yang et al. (2007)
17 54.680 250 C32H42O9 12-Acetoxyganoderic acid F 569.2656 511.2525, 509.2514, 479.2054, 465.2617, 435.2144 Chen et al. (2019)
18 58.012 254 C30H42O7 Ganoderic acid J 513.2852 495.2747, 469.2954, 451.2848, 409.2378 Yang et al. (2007)