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Table 2 Individual compounds identified by comparison of MS/MS spectra with database entries in Enhalus acoroides leaf extract (A), E. acoroides root extract (B), Halophila ovalis leaf extract (C) and Halodule pinifolia leaf extract (D)

From: Hindering the formation and promoting the dispersion of medical biofilms: non-lethal effects of seagrass extracts

No RT Mass MS/MS Name Accession Source
A - E. acoroides leaf extract
 1 2.5 343.03 201.02, 157.03, 59.01 n. i.
 2 2.7 312.12 179.05, 132.06, 89.02 n. i.
 3 3.3 367.1 277.07, 187.04, 157.03 n. i.
 4 7.2 134.04 107.03, 92.02 Adenine PT200393 ReSpect
 5 13.7 637.1 461.07, 285.04 Kaempferol-3-glucuronide, mod. PT209240 ReSpect
 6 14.8 275.15 233.12, 119.05 n. i.
 7 15.2 121.03 92.02, 77.03 Benzoic acid KO000321 MassBank
 8 18.6 527.02 285.04, 241.00, 96.96 n. i.
 9 20.1 511.05 269.04, 241.00, 96.96 n. i.
 10 20.8 187.09 169.08, 125.09, 97.06 Azelaic acid KO000124 MassBank
 11 21.3 447.09 285.04 Kaempferol-3-O-glucoside PS042209 ReSpect
 12 22.5 461.07 285.04 Kaempferol-3-glucuronide PS092408 ReSpect
 13 27.5 285.04 151.00, 133.03 Luteolin PS040410 ReSpect
 14 29.5 269.04 225.05, 151.00, 117.03 Apigenin PT203930 ReSpect
B - E. acoroides root extract
 1 2.4 343.03 201.02, 157.03, 59.01 n. i.
 2 2.7 312.12 179.05, 132.06, 89.02 n. i.
 3 2.9 377.08 341.11, 179.05, 119.03, 89.02 Galactinol dihydrate, mod. PT211910 ReSpect
 4 4.3 216.98 173.02, 156.98, 136.94, 59.01 n. i.
 5 7.2 134.04 107.03, 92.02 Adenine PT200393 ReSpect
 6 9.6 577.12 451.10, 425.08, 407.07, 289.07, 125.02 Procyanidin B2 PT204580 ReSpect
 7 12.3 289.07 245.07, 203.07, 151.04, 109.03 +(−) Epicatechin PT204560 ReSpect
 8 13.8 637.1 461.07, 285.04 Kaempferol-3-glucuronide, mod. PT209240 ReSpect
 9 14.0 469.08 275.02, 193.05, 178.02, 149.06, 96.96 n. i.
 10 14.8 275.15 233.12, 119.05 n. i.
 11 15.3 121.03 92.02, 77.03 Benzoic acid KO000321 MassBank
 12 20.8 187.09 169.08, 125.09, 97.06 Azelaic acid KO000124 MassBank
 13 22.6 461.07 285.04 Kaempferol-3-glucuronide PS092408 ReSpect
 14 24.1 299.05 284.03, 256.03, 133.03 Kaempferide PT204030 ReSpect
 15 27.5 285.04 151.00, 133.03 Luteolin PS040410 ReSpect
 16 29.5 269.04 225.05, 151.00, 117.03 Apigenin PT203930 ReSpect
 17 31.2 329.23 229.14, 211.13, 171.10 n. i.
C - H. ovalis leaf extract
 1 2.4 343.03 201.02, 157.03, 59.01 n. i.
 2 2.9 377.08 341.11, 179.05, 119.03, 89.02 Galactinol dihydrate, mod. PT211910 ReSpect
 3 4.3 216.98 173.02, 156.98, 136.94, 59.01 n. i.
 4 13.3 261.04 217.05, 189.05, 133.02 n. i.
 5 15.5 121.03 92.02, 77.03 Benzoic acid KO000321 MassBank
 6 16.3 306.17 288.16 n. i.
 7 17.5 479.08 316,02 Myricetin-3-galactoside PS092809 ReSpect
 8 19.5 463.09 301,03 Quercetin-3-O-beta-D-galactoside PS046509 ReSpect
 9 20.8 187.09 169.08, 125.09, 97.06 Azelaic acid KO000124 MassBank
 10 21.1 317.02 271.02, 149.02 n.i.
 11 21.3 447.09 285.04 Kaempferol-3-O-glucoside PS042209 ReSpect
 12 23.5 301.03 255.03, 165.02, 133.03 n.i.
 13 24.1 299.05 284.03, 256.03, 133.03 Kaempferide PS040309 ReSpect
 14 25.7 285.04 239.03, 185.06, 143.05, 117.03 Kaempferol PR040027 MassBank
 15 27.5 285.04 285.04, 151.00,133.02 Luteolin PT204043 ReSpect
 16 29.4 269.04 225.05, 151.00, 117.03 Apigenin PT203930 ReSpect
D - H. pinifolia leaf extract
 1 2.4 343.03 201.02, 157.03, 59.01 n. i.
 2 2.9 377.08 341.11, 179.05, 119.03, 89.02 Galactinol dihydrate, mod. PT211910 ReSpect
 3 4.3 216.98 173.02, 156.98, 136.94, 93.03, 59.01 n. i.
 4 6.6 473.07 311.04, 293.03, 179.03, 149.01 n. i.
 5 9.6 577.12 451.10, 425.08, 407.07, 289.07, 125.02 Procyanidin B2 PT204580 ReSpect
 6 12.1 289.07 245.07, 203.07, 151.04, 109.03 +(−) Epicatechin PT204560 ReSpect
 7 14.0 469.08 275.02, 193.05, 178.02, 149.06, 96.96 n. i.
 8 19.1 641.17 473.13, 311.07, 167.03 n. i.
 9 19.7 549.09 505.10, 463.09, 300.02, 271.02, 255.02 Quercetin-3-(6-malonyl)-glucoside PT209340 ReSpect
 10 20.8 187.09 169.08, 125.09, 97.06 Azelaic acid KO000124 MassBank
 11 21.1 505.09 463.08, 300.02, 271.02 Quercetin-3-O-beta-D-galactoside, mod. PT204650 ReSpect
 12 21.8 463.08 300.03, 271.02 Quercetin-3-O-beta-D-galactoside PT204650 ReSpect
 13 22.4 433.07 300.02, 271.02, 255.03, 179.00 Quercetin-3-arabinoside PT209320 ReSpect
 14 23.4 447.09 284.03, 255.03, 227.03 Kaempferol-3-glucoside PT209270 ReSpect
 15 24.6 417.08 284.03, 255.03, 227.03 Kaempferol-3-O-alpha-L-arabinoside PT209220 ReSpect
 16 26.3 301.03 178.99, 151.00, 121.03, 107.01 Quercetin PT204090 ReSpect
 17 27.4 285.04 199.03, 175.04, 151.00, 133.02 Luteolin PT204043 ReSpect
 18 27.7 315.05 300.02, 271.02, 255.03 Isorhamnetin PM007432 ReSpect
 19 29.5 269.04 225.05, 151.00, 117.03 Apigenin PT203930 ReSpect
  1. No = number of peak in Fig. 9, RT = retention time, Mass = mass of precursor ion, MS/MS = fragment spectra obtained at − 30 eV, Accession = accession number in database, Source = database used, n. i. = not identified, mod. = modified