Yıldız, M. 2025. Fatty acid and phytosterol contents in hazelnut (Corylus avellana L.) varieties grown in different regions: A comparative study of functional properties. International Journal of Innovative Research and Scientific Studies. 8, 6 (Sep. 2025), 1552–1564. DOI:https://doi.org/10.53894/ijirss.v8i6.9959.