TABLE 2.
Content of selected phenolic acids in HEas.
| Phenolic acid | HEa-EtOH | HEa-iPrOH | HEa-WA | H-CON | |
|---|---|---|---|---|---|
| GA | mg/100 ml | 3.37 ± 0.02b | 2.76 ± 0.19a | 2.385 ± 0.02a | nd |
| 3,4 -DHB | 21.97 ± 0.26b | 20.46 ± 0.32b | 9.69 ± 0.12a | nd | |
| 4-HB | 8.10 ± 0.34a | 8.84 ± 0.34ab | 9.61 ± 0.34a | nd | |
| 3-HB | 18.13 ± 0.33b | 16.70 ± 0.33b | 4.17 ± 0.02a | nd | |
GA, gallic acid; 3,4-DHB, 3,4-dihydroxybenzoic acid; 4-HB, 4-hydroxybenzoic acid; 3-HB, 3-hydroxybenzoic acid; HEa-EtOH, hydrogel containing dry ethanolic extract of E. angustifolium; HEa-iPrOH, hydrogel containing dry isopropanol extract of E. angustifolium; HEa-WA, hydrogel containing dry water extract of E. angustifolium; H–CON, hydrogel without E. angustifolium extract. Different letters indicate significant differences between the HEas, α = 0.05. Values are the mean of three replicate determinations (n = 3).