Chemical and Physical Properties of Some Hazelnut Varieties Grown in Portugal

Hazelnuts are one of the most appreciated nuts worldwide due to their unique organoleptic and nutritional characteristics. The present work intended analyse several physical chemical properties different hazelnut varieties grown in Portugal, namely Tonda de Giffoni, Grada Viseu, Segorbe, Longa Espanha, Butler, Gunslebert, Negreta. In general, results revealed statistically significant differences between under study. Gunslebert had more elongated hazelnuts with heavier shelled fruits, while kernels Viseu be heavier. was harder shell, a core, Segorbe resistant fracture. Fat representative component for all some cases values moisture water activity were over recommended amount (≥0.62). Giffoni variety highest induction time, indicating oxidation stability. Moreover, discriminant analysis that variables important distinguish protein (λ = 0.007) 0.010). this study help better understand cultivated which gives hints players sector.