Table 4.
LC50 concentrations of H. gardnerianum essential oils toxicity against Artemia salina.
| Essential oils /Standard | A. salina Bioassay |
|---|---|
| LC50 (μg/mL) | |
| FU | 375.93 a ± 24.91 |
| FO | 300.20 ab ± 15.80 |
| AC | 504.67 c ± 24.33 |
| SC | 379.93 b ± 94.90 |
| Berberine Chloride | 4.12 ± 0.02 |
| Phenol | 124.45 ± 0.23 |
| Caffeine | >1,000 |
| Theophylline | >1,000 |
Values of expressed in number of µg/mL of essential oil needed to kill 50% brine shrimp. LC50 > 1000 μg/mL are considered non-toxic. The values of LC in each column followed by the same letter are not significantly different. Place of sampling: FU = Furnas; FO = Fogo; SC = Sete Cidades; AC = Achada do Nordeste.