Table 1.
LC-MS results of acai berry extracts and compound antioxidant activities.
| Name of Compound | Formula | Exact Mass | Acai Berry Extracts | Antioxidant Activity |
|
|---|---|---|---|---|---|
| PBS | Ethanol | ||||
| Phenolic compounds and phenolic acids: | |||||
| Protocatechuic acid | C7H6O4 | 154.0268 | Detected | Detected | ✓ |
| Syringic acid | C9H10O5 | 198.0530 | Detected | Detected | ✓ |
| Vanillic acid | C8H8O4 | 168.0425 | Detected | Detected | ✓ |
| Gallic acid | C7H6O5 | 170.0217 | Detected | Not Detected | ✓ |
| 4-Hydroxybenzoic acid | C7H6O3 | 138.0319 | Detected | Detected | ✓ |
| Benzoic acid | C7H6O2 | 122.0371 | Detected | Not Detected | ✓ |
| 2,5-Dihydroxybenzoic acid | C7H6O4 | 154.0268 | Detected | Detected | ✓ |
| Chlorogenic acid | C16H18O9 | 354.0951 | Detected | Detected | ✓ |
| Flavonoids: | |||||
| Dihydrokaempferol | C15H12O6 | 288.0634 | Detected | Detected | ✓ |
| Luteolin | C15H10O6 | 286.0478 | Not Detected | Detected | ✓ |
| Quercetin | C15H10O7 | 302.0426 | Not Detected | Detected | ✓ |
| Taxifolin deoxyhexose or Taxifolin | C15H12O7 | 304.0584 | Detected | Detected | ✓ |
| Quercetin-3-O-rutinoside (rutin) | C27H30O16 | 610.1519 | Not Detected | Detected | ✓ |
| Quercetin 3-O-glucoside (Isoquercitrin) | C21H20O12 | 464.0950 | Not Detected | Detected | ✓ |
| Kaempferol rhamnoside | C21H20O10 | 432.1048 | Detected | Not Detected | ✓ |
| Isoorientin | C21H20O11 | 448.0996 | Not Detected | Detected | ✓ |
| Lignans: | |||||
| (+)-Isolariciresinol | C20H24O6 | 360.1575 | Detected | Detected | ✓ |
| (+)-lariciresinol | C20H24O6 | 360.1575 | Detected | Detected | ✓ |
| Dihydroconiferyl alcohol | C10H14O3 | 182.0945 | Detected | Detected | - |
| Proanthocyanidins: | |||||
| (+)-Catechin | C15H14O6 | 290.0785 | Not Detected | Detected | ✓ |
| Monoterpenoids: | |||||
| (+)-menthiafolic acid | C10H16O3 | 184.1100 | Detected | Not Detected | - |
| (E,Z)-2,6-dimethyl-2,6-octadiene-1,8-diol | C10H18O2 | 170.1309 | Not Detected | Detected | - |
| Norisoprenoids: | |||||
| (-)-loliolide | C11H16O3 | 196.1099 | Not Detected | Detected | ✓ |
| Major fatty acids: | |||||
| Monounsaturated fatty acids | |||||
| Oleic acid | C18H34O2 | 282.2558 | Detected | Detected | ✓ |
| Palmitoleic acid | C16H30O2 | 254.2247 | Not Detected | Detected | - |
| Polyunsaturated fatty acids | |||||
| Linoleic acid | C18H32O2 | 280.2401 | Not Detected | Detected | ✓ |
| Linolenic acid | C18H30O2 | 278.2245 | Not Detected | Detected | ✓ |
| Saturated fatty acids | |||||
| Palmitic acid | C16H32O2 | 256.2403 | Not Detected | Detected | - |
| Stearic acid | C18H36O2 | 284.2714 | Not Detected | Detected | - |
| Amino acids: | |||||
| Alanine | C3H7NO2 | 89.0477 | Detected | Detected | - |
| Lysine | C6H14N2O2 | 146.1055 | Detected | Not Detected | ✓ |
| Arginine | C6H14N4O2 | 174.1116 | Not Detected | Detected | ✓ |
| Methionine | C5H11NO2S | 149.0511 | Detected | Not Detected | ✓ |
| Phenylalanine | C9H11NO2 | 165.0790 | Detected | Detected | - |
| Proline | C5H9NO2 | 115.0632 | Detected | Detected | - |
| Glutamic acid | C5H9NO4 | 147.0532 | Detected | Detected | - |
| Serine | C3H7NO3 | 105.0426 | Detected | Detected | - |
| Glycine | C2H5NO2 | 75.0320 | Detected | Detected | - |
| Threonine | C4H9NO3 | 119.0582 | Detected | Detected | - |
| Histidine | C6H9N3O2 | 155.0694 | Detected | Detected | ✓ |
| Tryptophan | C11H12N2O2 | 204.0901 | Detected | Detected | ✓ |
| Tyrosine | C9H11NO3 | 181.0741 | Detected | Detected | ✓ |
| Isoleucine | C6H13NO2 | 131.0946 | Detected | Detected | - |
| Valine | C5H11NO2 | 117.0788 | Detected | Detected | - |
| Leucine | C6H13NO2 | 131.0948 | Not Detected | Detected | - |
| Other compounds: | |||||
| Cellotetraose | C24H42O21 | 666.2225 | Not Detected | Detected | - |
| Sucrose | C12H22O11 | 342.1155 | Detected | Detected | ✓ |
| Quinic acid isomer 1 | C7H12O6 | 192.0635 | Detected | Detected | ✓ |
| Ascorbic acid (Vitamin C) | C6 H8 O6 | 176.0322 | Detected | Detected | ✓ |