Evaluation of White Sweet Clover (Melilotus alba Desr.) Genotypes in terms of Secondary Metabolite Contents.

Abstract

Sweet clovers are belonging to the fabaceae and are important for animal nutrition and health in terms of the secondary metabolites it contains. Besides, sweet clovers increase the quality of short-term pastures to be established in arid and poor soils, and their feed quality is high and the swelling problem is less than compared to the alfalfa and trefoil species. In this study, it was aimed to determine the total phenolic (TP), total flavonoid (TF), radical scavenging activity (DPPH) and condensed tannin contents (CT) of 17 white sweet clover (Melilotus alba Desr.) collected from the natural flora of Bilecik. As a result, the average TP, TF, DPPH, and CT contents of white sweet clover genotypes were determined as 3.901 mg GA g-1 17.962 mg QE g-1, 26.523%, and 0.611%, respectively, and there were differences between the white sweet clover genotypes in terms of these compounds. Besides, these compounds determined in the study are very important in terms of feed quality and animal health, and the results will shed light on future studies.

Keywords

• White sweet clover
• genotype
• forage crop
• antioxidant
• condensed tannin.

Aktaş Yoncası (Melilotus alba Desr.) Genotiplerinin Sekonder Metabolit İçeriği Bakımından Değerlendirilmesi

Öz

Baklagiller familyasında yer alan taş yoncaları içermiş olduğu ikincil metabolitler ile hayvan besleme ve sağlığı açısından önem teşkil etmektedir. Diğer taraftan, kıraç ve fakir topraklarda kurulacak kısa süreli meraların kalitesinin artırılmasında kullanılan taş yoncalarının yem kalitesi yüksek olmakla birlikte, yonca ve üçgül türlerine göre şişme problemi daha azdır. Bu araştırma, Bilecik ili doğal florasından toplanan 17 adet aktaş yoncası genotipinin (Melilotus alba Desr.) toplam fenolik, toplam flavonoid, radikal kovucu aktivite (DPPH) ve kondanse tanen içeriklerinin belirlenmesi amacı ile yapılmıştır. Araştırma sonucuna göre, genotiplerin ortalama fenolik, flavonoid, DPPH ve kondanse tanen içerikleri sırasıyla 3.901 mg GA g-1, 17.962 mg QE g-1, %26.523 ve %0.611 olarak belirlenmiş olup, söz konusu bileşikler bakımından aktaş yoncası genotipleri arasında farklılıklar olmuştur. Ayrıca, çalışmada belirlenen bu bileşikler yem kalitesi ve hayvan sağlığı açısından çok önemli olup, sonuçlar ileride yapılacak çalışmalara ışık tutacak niteliktedir.

Anahtar Kelimeler

• Aktaş yoncası
• genotip
• yem bitkisi
• antioksidan
• kondanse tanen.

Kaynakça

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