Electrochemical evaluation of lipophilic antioxidants from Iryanthera juruensis fruits (Myristicaceae)
TLC autographic assays revealed in the hexane extract of Iryanthera juruensis (Myristicaceae) the presence of two compounds, with antioxidant properties towards β-carotene. They were isolated and identified as 3-methyl-sargachromenol (1) and sargachromenol (2). Further investigation of the hexane ex...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Universidade Estadual Paulista
2018-05-01
|
| Series: | Eclética Química |
| Online Access: | https://revista.iq.unesp.br/ojs/index.php/ecletica/article/view/466 |
| Summary: | TLC autographic assays revealed in the hexane extract of Iryanthera juruensis (Myristicaceae)
the presence of two compounds, with antioxidant properties towards β-carotene. They were isolated and
identified as 3-methyl-sargachromenol (1) and sargachromenol (2). Further investigation of the hexane
extract led to isolations of 3-methyl-sargaquinoic acid (3) and sargaquinoic acid (4). The electrochemical
behaviour of these compounds was studied in CH 2 Cl 2 /Bu 4 NBF 4 at glassy carbon electrode. The phenolic
group in both tocotrienols 1 and 2 are oxidized at +0.23V and +0.32V and their oxidation potentials are
correlated with the observed antioxidant activities and oxidation mechanism of α-tocopherol. The reductive
voltametric behaviour of quinone function in both plastoquinones 3 and 4 is discussed. |
|---|---|
| ISSN: | 1678-4618 |