Grasas y Aceites, Vol 56, No 4 (2005)

Fat and fatty acid composition of hazelnut kernels in vacuum packages during storage

Mehmet Ali Koyuncu
Department of Horticulture, Faculty of Agriculture, Suleyman Demirel University, Turkey

Ali Islam
Department of Horticulture, Faculty of Agriculture, Karadeniz Teknik University, Turkey

Mehmet Küçük
Department of Food Engineering, Faculty of Agriculture, Yüzüncü Yil University, Turkey


The fat contents and fatty acid compositions of three hazelnut cultivars; Tombul, Palaz and Kalinkara were investigated during storage at 21 °C with 60-65 % relative bhumidity. The total fat contents of kernels in vacuum packages increased significantly with storage time. It is believed that the absolute value of fat content does not increase but that the kernel water content and total weight decrease. The palmitic and oleic acid contents of stored hazelnuts increased, while linoleic acid content decreased. No significant differences were found for stearic and linolenic acids during storage.


Fat content; Fatty acid composition; Hazelnuts; Storage; Vacuume package

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