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. 2022 Nov 7;20(11):697. doi: 10.3390/md20110697

Table 1.

List of tentatively identified compounds from Skeletonema grevillei extracts by GC-MS in bioreactor after 192 and 312 h.

No. Retention Index Similarty (%) Proportion (%) Identified Compound Molar Weight
BRC192 BRC312 BRC192 BRC312 BRC192 BRC312
1 1242 n.d. 96 n.d. 0.05 n.d. Benzoic acid, TMS derivative 194
2 1253 n.d. 86 n.d. 0.02 n.d. Octanoic acid, TMS derivative 216
3 1269 1265 94 92 0.13 0.21 Glycerol, 3TMS derivative 308
4 1348 1345 95 92 0.08 0.05 Nonanoic acid, TMS derivative 230
5 1451 1450 95 91 0.02 0.02 Decanoic acid, TMS derivative 244
6 n.d. 1499 n.d. 94 n.d. 0.13 Malic acid, 3TMS derivative 350
7 1534 n.d. 91 n.d. 0.01 n.d. 1-Dodecanethiol 202
8 1653 1499 97 93 0.05 0.03 Dodecanoic acid, TMS derivative 272
9 1691 n.d. 85 n.d. 0.03 n.d. Tetradecanenitrile 326
10 1753 1752 94 94 0.10 0.14 Tridecanoic acid, TMS derivative 286
11 1767 n.d. 91 n.d. 0.01 n.d. 1-Tetradecanol, TMS derivative 286
12 1788 1787 93 93 0.06 0.17 Loliolide, TMS 268
13 1853 1852 95 96 2.55 6.50 Myristic acid, TMS derivative 300
14 n.d. 1877 n.d. 90 n.d. 0.28 (Z)-3-Hexenyl β -glucopyranoside, 4TMS derivative 550
15 1879 n.d. 94 n.d. 0.11 n.d. Palmitoleonitrile 235
16 1930 n.d. 86 n.d. 0.05 n.d. (E)-13-Methyltetradec-9-enoic acid, TMS derivative 312
17 1952 1951 94 85 0.17 0.49 Pentadecanoic acid, TMS derivative 314
18 2009 2008 89 88 0.97 0.63 Eicosapentaenoic acid, TMS derivative 374
19 2031 2030 96 97 7.37 12.15 Palmitelaidic acid, TMS 326
20 2053 2052 96 95 2.31 2.73 Palmitic acid, TMS derivative 328
21 2076 n.d. 89 n.d. 0.43 n.d. 9-Octadecynenitrile 261
22 2083 2082 97 97 2.96 0.38 (Z)-9-Octadecenenitrile 263
23 2151 2094 92 83 0.04 0.03 Heptadecanoic acid, TMS derivative 342
24 n.d. 2157 n.d. 93 n.d. 0.04 Palmitoleamide 253
25 n.d. 2163 n.d. 87 n.d. 0.01 1-Octadecanol, TMS derivative 342
26 n.d. 2178 n.d. 85 n.d. 0.03 Octadecanamide 319
27 2184 2184 92 97 1.48 2.09 Phytol, TMS derivative 368
28 2216 2215 88 92 0.47 0.44 Linoleic acid, TMS derivate 352
29 2230 2229 94 94 2.36 0.90 (Z)-Oleic acid, TMS derivative 354
30 2251 2250 97 95 0.88 0.65 Stearic acid, TMS derivative 356
31 n.d. 2256 n.d. 86 n.d. 0.05 11-Methyloctadec-12-enoic acid, TMS derivative 368
32 n.d. 2331 n.d. 90 n.d. 0.16 (all-Z)-5,8,11,14,17-Eicosapentaenoic acid, methyl ester 330
33 2337 n.d. 92 n.d. 0.10 n.d. (Z)-10-Nonadecenoic acid, TMS 368
34 2365 2362 95 96 2.30 2.50 9-Octadecenamide 281
35 n.d. 2373 n.d. 90 n.d. 0.68 (Z)-5,8,11-Eicosatrienoic acid, TMS derivative 378
36 2381 2380 94 96 3.29 6.00 Eicosapentaenoic acid, TMS derivative 374
37 2430 2422 83 82 49.84 33.65 Oleamide, TMS derivative 353
38 2450 2448 95 95 1.24 0.70 Steramide, TMS derivative 355
39 2564 2564 97 89 0.54 0.19 Doconexent, TMS derivative 400
40 2578 2578 93 87 1.39 1.09 2-Palmitoylglycerol, 2TMS derivative 474
41 2610 2610 96 96 2.91 2.89 1-Monopalmitin, 2TMS derivative 474
42 2771 2770 90 90 1.46 1.59 2-Monostearin, 2TMS derivative 502
43 2787 2787 93 90 0.34 0.10 1-Monooleoylglycerol, 2TMS derivative 500
44 2805 2804 97 96 5.92 9.30 Glycerol monostearate, 2TMS derivative 502
45 2826 2825 88 81 0.57 0.10 (Z)-Docos-13-enamide, TMS 409
46 n.d. 2997 n.d. 89 n.d. 0.15 Eicosanoic acid, 2,3-bis-(OTMS) propyl ester 530
47 2998 n.d. 93 n.d. 0.09 n.d. 2,3-Dihydroxypropyl icosanoate, 2TMS derivative 530
48 3066 3066 89 88 0.09 0.10 2-Arachidonoylglycerol, 2TMS derivative 522
49 3163 3162 96 96 3.97 6.21 Cholesterol, TMS derivative 458
50 n.d. 3201 n.d. 90 n.d. 0.40 Desmosterol, TMS derivative 456
51 3261 3260 90 * 88 * 3.03 5.09 24-Methylene cholesterol * 398 *
52 3380 3380 88 81 0.15 0.20 Isofucosterol, TMS 484
53 3672 3672 90 92 0.06 0.80 Oleanolic acid 2TMS 600

* A compound identified in non-derivatized form and its molecular weight (other data for this compound, RI, and proportion, were obtained for the derivatized form) as well as with literature data comparison for its derivatized form.; n.d.—not detected. BRC192—after 192 h in a bioreactor; BRC312—after 312 h in a bioreactor.