Antioxidant activity of isolated compounds in non-volatile residue from orange essential oil.
| Autor: | L. Vargas-Arispuro, B. I. Sanz, M. A. Martínez-Téllez, E. Primo-Yúfera |
|---|---|
| Jazyk: | English<br />Spanish; Castilian |
| Rok vydání: | 1998 |
| Předmět: | |
| Zdroj: | Grasas y Aceites, Vol 49, Iss 2, Pp 159-164 (1998) |
| Druh dokumentu: | article |
| ISSN: | 0017-3495 1988-4214 |
| DOI: | 10.3989/gya.1998.v49.i2.715 |
| Popis: | There has been a growing interest in the food industry and in preventive medicine to search for «natural antioxidants». Therefore the objetive of this study was to evaluate the antioxidant activity of the non-volatile residue of essential orange oil in the oxidation of unrefined and freshly extracted olive oil. Essential orange oil was distilled to obtain a non-volatile residue and fracctionated on a Silica Gel 60 column. The antioxidant activity was determined by measuring peroxide value obtained after heating olive oil at 70 °C for 48 h. Six compounds were isolated and purified, four of these had antioxidant activity, α-tocopherol and three methoxylated flavones were identified using spectroscopic methods. This study confirmed that non-volatile fractions of essential orange oil contain natural antioxidants diferent from α-tocopherol. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
|