| Yazarlar |
Doç. Dr. Temel Kan BAKIR
Kastamonu Üniversitesi, Türkiye |
İnci Sönmezoğlu
|
|
Filiz İmer
|
|
Mustafa Reşat Apak
İstanbul Üniversitesi, Türkiye |
| Özet |
| The peroxidation of linoleic acid (LA) in the presence of copper(II) (Cu(II)) ions alone and with α-tocopherol (α-TocH) was investigated in aerated and incubated emulsions at 37°C and pH 7. Additionally, the effects of quercetin (QR) and its O-methylated derivative, isorhamnetin (IR), as potential antioxidant protectors were studied in the (Cu(II)+TocH)-induced LA peroxidation system. Cu(II)-induced LA peroxidation followed pseudo-first-order kinetics with respect to primary (hydroperoxides) and secondary (aldehydes- and ketones-like) oxidation products, which were determined by ferric thiocyanate and thiobarbituric acid-reactive substances methods, respectively. As opposed to the concentration-dependent (at 0.6 and 10.0μM) prooxidative action of α-TocH in the absence of QR and IR, the latter two compounds showed antioxidant effect over TocH. The peroxidation of LA in the presence of Cu(II)-H2O2 combination alone and with TocH, QR and IR were also investigated in aerated and incubated emulsions, where the latter three compounds exhibited antioxidant effects. © 2014 Informa UK Ltd. |
| Anahtar Kelimeler |
| Copper-initiated prooxidant activity | Hydroperoxides | Isorhamnetin | Linoleic acid peroxidation | Quercetin | Tocopherol |
| Makale Türü | Özgün Makale |
| Makale Alt Türü | SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale |
| Dergi Adı | International Journal of Food Sciences and Nutrition |
| Dergi ISSN | 0963-7486 |
| Dergi Tarandığı Indeksler | SCI-Expanded |
| Makale Dili | İngilizce |
| Basım Tarihi | 10-2013 |
| Cilt No | 65 |
| Sayı | 2 |
| Sayfalar | 226 / 234 |
| Doi Numarası | 10.3109/09637486.2013.845654 |
| Makale Linki | http://www.tandfonline.com/doi/full/10.3109/09637486.2013.845654 |
| Atıf Sayıları | |
| SCOPUS | 18 |
