Review Article
Parkia speciosa Hassk.: A Potential Phytomedicine
Table 3
Antioxidant activity in various P. speciosa extracts.
| Plant part | Extract | Total phenolic content (mg GAE/g)a | DPPH assay (mol Trolox/g)a | FRAP assay (mol Trolox/g)a | Total flavonoids (mg RE/g)a | Tannin (mg/g)a | Reference |
| Pod and seed | Aqueous | 1557.6b,c | 7418.3b,d | 1617.3b,d | — | — |
Ayub Ali et al. [32] | Pod and seed | Methanol | 2464.3b,c | 5936.9b,d | 1898.0b,d | — | — |
Ayub Ali et al. [32] | Pod | Ethanol | — | — | — | — | 250 | Tunsaringkarn et al. [5] | Seed | Ethanol | 51.9a | — | — | 20.3a | — | Maisuthisakul et al. [10] | Seed | Methanol | — | — | — | 0 | — | Miean and Mohamed [18] | Seed | Methanol | 120b,c | 40b,e | — | — | — | Tangkanakul et al. [34] | Seed | Aqueous | 6.5 | 67.62 | 44.67 | — | — | Reihani and Azhar [30] | Seed coat | Ethanol | — | — | — | — | 350 | Tunsaringkarn et al. [5] | Leaf | Ethanol | 44.7 | 89.26f | — | — | — | Tangkanakul et al. [4] | Leaf | Aqueous | 22.7 | 57.4f | — | — | — | Tangkanakul et al. [4] | Leaf | Aqueous | 32.73 | 22.7 | 49.9 | — | — | Wong et al. [33] |
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aDry weight basis, bfresh weight basis, c(mg GAE/100 g), d(mg Trolox/100 g), e(mg vitamin C equivalent/g), and f(mg BHA equivalent/g).
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