Zeytin yaprağı ilavesinin zeytinyağının bazı karakteristik özelliklerine etkisi

Yıl 2021, Cilt: 25 Sayı: 1, 72 - 85, 24.03.2021

Emine Doğru Şerafettin Çelik , Yasin Yakar , Naciye Ünver

https://doi.org/10.29050/harranziraat.744568

Cited By: 3

Öz

Bu çalışmada, zeytin yaprağı ilavesinin Ayvalık çeşidi zeytinden üretilen zeytinyağının bazı karakteristik özelliklerine etkisinin tespit edilmesi amaçlanmıştır. Bu amaçla, oda sıcaklığında 12 ay süre depolanan zeytinyağlarının serbest asitlik, peroksit değeri, toplam fenolik madde, antioksidan kapasite, indüksiyon süresi, özgül absorbans, renk ve yağ asitleri kompozisyonu incelenmiştir. Yapılan istatistiksel değerlendirmede kontrol grubu yağa oranla, yaprak ilavesiyle üretilen zeytinyağının ortalama serbest asitlik, peroksit değeri, L*, a* ve b* değerleri ile stearik asit, SFA ve MUFA oranlarında önemli düzeyde azalma, fenolik madde içeriği, antioksidan kapasite, indüksiyon süresi ile linoleik asit ve PUFA oranlarında önemli düzeyde yükselme tespit edilmiştir. Yapılan değerlendirmeler ışığında, yaprak ilavesiyle üretilen zeytinyağının oda şartlarında en az 12 aylık süre ile oksidatif stabilitesini koruduğu, yaprak ilavesinin yağın oksidasyon stabilitesine olumlu katkı sağladığı, özellikle %4 yaprak ilavesiyle üretilen zeytinyağının daha uzun süreyle oksidatif stabilitesini koruyacağı sonucuna varılmıştır.

Anahtar Kelimeler

Natürel Zeytinyağı, zeytin yaprağı, peroksit değeri, oksidatif stabilite, yağ asitleri bileşimi

Destekleyen Kurum

HARRAN ÜNİVERSİTESİ BAP

Proje Numarası

17120

The effect of olive leaf addition on some characteristic properties of olive oil

Öz

Proje Numarası

17120

Kaynakça

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