Cengiz SARİKURKCU, Gökhan ZENGİN, Abdurrahman AKTÜMSEK, Olcay CEYLAN, Murad Aydın ŞANDA

ONOPORDUM ANATOLICUM TOHUMLARININ ANTIOKSİDAN AKTİVİTELERİ

Onopordum cinsi Türkiye’de ondokuz takson ile temsil edilmekte ve Anadolu’da tıbbi amaçla geleneksel olarak kullanılmaktadır. O. anatolicum tohumlarının etil alkol ve su özütlerinin antioksidan özellikleri β-karoten/linoleik asit, DPPH serbest radikal süpürme, indirgeme gücü, ve metal şelatma testlerini içeren farklı kimyasal testlerle araştırıldı. Ayrıca, özütlerin toplam fenolik ve flavonoid içerkikleri de belirlendi. Genel olarak, etil alkol özütü yüksek toplam fenolik içerikle önemli antioksidan aktivite (metal şelatlama dışında) sergilemiştir. Bununla birlikte, su özütü çalışılan örnekler arasında en güçlü şelatlama aktivitesine sahiptir. Bu çalışma O. anatolicum özütlerinin doğal antioksidanların yeni bir kaynağı olarak gıda ve farmakoloji endüstrisinde kullanılabileceğini önermektedir.

Anahtar Kelimeler:

Antioksidan, Çözücü, İndirgeme gücü, Onopordum, Serbest radikal, Türkiye

Antioxidant Activities of Onopordum anatolicum seeds

The genus Onopordum contained nineteen taxa in Turkey, which are traditionally used for medicinal purposes in Anatolia. Antioxidant activities of ethyl alcohol and water extracts from O. anatolicum seeds were investigated by different chemical assays including β-carotene/linoleic acid, DPPH radical scavenging, reducing power and metal chelating. Also, total phenolic and flavonoid content were determined for the extracts. Generally, ethyl alcohol extract showed significantly antioxidant activity (except for metal chelating) with high total phenolic content. However, the water extract had the strongest metal activity among these samples. This study suggested that O. anatolicum extracts could be considered as novel a source of natural antioxidants in food and pharmacological industries

Keywords:

Antioxidant, Solvents, Reducing power, Onopordum, Free radical, Turkey,

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Toplam fenolik (mg PEs/g özüt)
Toplam flavonoit (mg QEs/g özüt)