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Table 1 Peak assignments and tentative identification of the major constituents in N. alba AEE by HRESI-MS/MSa in the positive and negative modes

From: Profile of bioactive compounds in Nymphaea alba L. leaves growing in Egypt: hepatoprotective, antioxidant and anti-inflammatory activity

Peak Number Tentatively Identified Compound tRb (min.) [M-H]m/zd Negative Ionization MS/MSc [M + H]+m/zd Positive Ionization MS/MS
1 HHDPe -hexoside 1.85 481.06 301.14 463.2 275.18 483.08 465.14 437.07 309.07 263
2 Epicatechin derivative 2.94 427.09 265.15 307.14 367.23 289.19 247.1 221.15   
3 Ellagitannin derivative 3.59 817.07 773 481 301.11 481.24 275.19 247.23 819.09 801.2 481.13 463.05 337.14 319.14 303.12
4 HHDP-galloyl-ellagic acid 4.12 773.09 301.17 729 471.27 275.24 247   
5 Ellagic acid 4.44 301.15 257.22 229.10 185.16 303.1 275.03 257.1 247.04 229.13 165.02
6 Isorhamnetin derivative 5.38 386.96 315 343.21 271.16 255.16 189.02 161.06   
7 Quercetin 3–O-acetyl hexoside 12.73 505.07 459.19 403.18 487.14 301.12 275.17 231.25 247.09 169.12 507.09 489.14 447.14 405.14 387.03 303.18 205.14187.17
8 Ellagic rhamnosyl hexoside 13.27 609.17 403.17 563.18 447.3 429.2 359.2 291.22 301.13 275.28 247.19 611.18 593.30 551.30 533.27 449.30 389.21 343.21 303.22
9 Lagerstannin A (Bis-HHDP-gluconic acid) 13.40 799.06 497.16 301.21 755.24 453.26 801.08 463.15 765.11 783.17 481.15 337.12 303.15 277.10 247.15
10 Brevifolin 13.5 247.02 203.11 bp 175.13 249.6 207.05 232.12 221.12 187.08 159.04 131.04
11 Phyllanthusiin U 13.72 924.11 301.01 622.2 604.24 905.22 451.19 926.13 908.2 303.12 277.15 703.25 606.26
12 Valoneic acid dilactone dimer 13.81 939.02 469.24 425.21 300.2 941.02 453.15 922.27 621.2 470.99 407.19
13 3,4,8,9,10-Pentahydroxydibenzo[b,d]pyran-6-one 14.13 275.02 245.05 257.08 231.1 229.2 203.08 187.18 277.03 235.23 221.17 183.17
14 Luteolin 14.34 285.04 257.16 241.13 229.2 213.23 185.2 167.24   
15 Ellagitannin derivative 14.45 931.11 301.14 783.2 933.03 873.05 915
16 Methyl gallate 14.56 183.03 168.13 124.03 169.09 185.33 167.07 153.03 104.96 129.07
17 Ellagic acid hexoside 15.54 463.05 301.2 419.2 417.16 331.7 274.96 251.07 247.2 465.05 303.09 447.13
18 Catechin or epicatechin derivative 15.83 621.07 575.46 439.15 289.19 245.10 217.14   
19 Orientin 16.3 447.02 403.16 233.03 427.03 359.17 277.12 357.18 329.16 327.18 315.23 301.19 287.17 189.05   
20 Ellagitannin derivative 16.63 755.07 711.24 453.19 301.21 435.21 409.36 275 247.23   
21 Phyllanthusiin E 17.04 291.04 247.11 203.18 293.03 247.11 275.06
22 Ellagitannin derivative 17.17 1153.09 799.17 755.21 453.16 409.24   
23 Phyllanthusiin B isomer 18.05 969.09 631.25 667.22 451.15 331.27 291.07   
24 Castalin derivative 18.77 967.07 631.14 451.2 571.19 969.08 950.82 499.10 579.02 481.16 453.10 355.1 337.17
25 HHDP-gluconic acid 19.21 497.06 463.20 453.24 301.07 291.18 275.18 257.25 247.23   
26 Ellagic acid-galloyl hexoside 20.85 613.05 451.13 425.26 569.22 509.16   
27 Phyllanthusiin B 21.17 969.09 633.26 923.18 951.26 667.26 ch301.24 451.30 275.18 971.1 953.16 651.14 633.17 615.15 481.21 453.18 303.15 277.17
28 Vescalagin or castalagin 21.28 933.06 613.20 301.15 631.2 273.14 915.21 935.07 916.31 615.34 481.12 453.13 303.19 277.18
29 Apigenin 24.66 269.03 223.01 179.07   
30 Phyllanthusiin C 24.91 925.10 605.29 301.08 623.23 905.15 633.08 453.09 291.18 273.06 927.11 909.26 607.23 589.14 571.16 419.23 321.19 303.1 277.11
31 Corilagin (Galloyl HHDP hexoside) 25.14 633.07 301.14 589.22 481.29 275.27 257.15 635.08 443.11 617.23 573.16 355.11 254.15 191.12
32 Pedunculagin (Bis HHDP-hexoside) 25.77 783.07 481.17 737.33 301.11 451.11 785.08 767.15
33 Castalin 26.17 631.06 301.20 299.12 451.18 271.05 633.07 615.12
34 Phyllanthusiin C derivative 27.24 1217.12 925.56   
35 Lagerstannin C (Galloyl-HHDP-gluconic acid 27.33 649.1 603.26 605.27 631.23 469.18 441.17 451.26 301.14 247.19 651.08 633.13 481.19 337.11
36 Catechin or epicatechin 28.29 289.12 245.09 217.18 291.42 247.1 272.03 235.09 219.07 191.07
37 Lagerstannin B (flavogalloyl HHDP-gluconic acid) 29.82 949.11 647.25 905.25 629.24 477.24 333.21 301.15 275.2   
38 Granatin B(Galloyl-HHDP-DHHDP-hex) 30.97 951.08 605.26 649.21 301.15 631.23 907.21 952.19 497.23 953.08 277.10 935.15 633.24 615.12 321.11 303.11
39 Dehydrated tergallic C-glucoside 31.4 613.05 299.07 301.27 569.27 595.15 227.15 615.06 453.14 387.09 313.15
40 Cinnamic acid derv. 31.5 329.09 197.10 239.1 169.07 331.13 299.09 313.19 272.12 236.09 151.04
41 Phyllanthusin B derivative 32.18 981.59 969.23 933.23 613.24 481.26   
42 Valoneic acid dilactone 32.47 469 425.15 301.09   
43 Gallic acid derivative 32.61 198.62 169.06 153.14 125.21 117.06   
44 Ellagitannin derivative 33.31 907.08 605.19 863.09 587..23 561.23 301.14 275.11 909.09 890.22 703.08 589.21 321.19 303.05 277.09
45 Digalloyl ellagic acid 33.62 605.62 561.25 247.18 291.12 203.18 453.24 435.12 229.08 607 315.05 589.27 565.23 549.25 505.27
46 Castalgin derivative 34.51 965.09 631.22 301.03 967.10 647.25 949.1 906.2 629.26 495.16 445.26 303.18 27.10
47 Chebulagic acid 34.79 953.18 935.32, 907.22 649.28 605.1 631.28 301.22 291.24 955.19 937.20 633.17 481.26 463.28 319.11 301.16 27.19
48 Ellagic acid pentoside 38.56 433.04 291.15 bp 405.17 301.18 275.23 247 229 435.15 417.19 bp 407.25 399.14 376.35 343.11 325.11 299.19 181.19
49 Ellagic acid rhamnosyl 39.07 447.02 359.17 403.2 385.11 315.25 301.13 275.18 448.98 413.09 405.24 331.08 277.1
50 Geraniin 40.40 951.07 933.10 613.20 301.13 631.15   
51 Vescalagin derivative 40.8 965.09 613.2 933.19 301.09 967.10 935.17 647.22 277.12
52 Galloyl ellagic acid 41.83 453.04 301.13 438.34 291.12 247.11 169.13 273.27 455.08 437.13 394.98
53 Gallic acid 62.11 169.01 125.11   
  1. Boldface digits reflects the base peak (100% abundance)
  2. Fragment ions are listed in order of relative abundances
  3. aHigh resolution liquid chromatography coupled with electrospray ionisation mass /mass spectometry
  4. bRetention time
  5. cMass/Mass spectrometry
  6. dMass to charge ratio
  7. eHexahydroxydiphenic acid