Abstract
Istria and Island Krk are located in the Northern Adriatic region, Republic of Croatia. The majority of oils produced on the islands of this Region correspond to extra virgin classification as a consequence of olive cultivars (Debela, Naska, Rosulja, Slatka, Buza, Carbonera, Bianchera, Leccino). The characterisation of these oils is little known. The objective of this work was the characterisation of virgin olive oils during the 1997/98, 1998/99 and six months of 1999/2000 harvest. Acidity, peroxide value and UV absorption constants were determined for all samples. Fatty acid composition, sterol and aliphatic alcohol contents, saturated fatty acids in the 2-position of the triglyceride and trilinolein content were determined for the virgin olive oils during 1997/98 harvest. The chemical analyses were supported by the determination of polyphenol content expressed as caffeic acid, squalene and α-tocopherol content.
Highlights
Croatia is a country, which consists of diverse climatic and cultural geographic region
Some of these cultivars are grown in the Northern Adriatic region of the Republic of Croatia (Buga, Bianchera, Drobnica, Rosulja, Plominka, Oblica and Crnica)
The Republic of Croatia promulgated National Regulation for determining characteristics of olive oils and pomace oils, which is identical to the European Community (EC) Regulations 2568/91 and 656/95, but majority of laboratories in Croatia are not trained to perform the chemical analyses in accordance with the above-mentioned Regulation
Summary
Croatia is a country, which consists of diverse climatic and cultural geographic region. The production and consumption of olive oil are traditional in the Mediterranean region. Mediterranean characteristics are noticeable on the islands, peninsula Istria and on the Adriatic coast. In the Republic of Croatia, the major cultivars used for oil production include Buga, Bianchera, Lastovka, Drobnica, Rosulja, Zutica, Uljarica, Slivnjaca, Puljka, Plominka, Ostrika, Oblica, Levantica, Kosmaca, Grozdaca, Duzica and Crnica. Some of these cultivars are grown in the Northern Adriatic region of the Republic of Croatia (Buga, Bianchera, Drobnica, Rosulja, Plominka, Oblica and Crnica). Since 1970s, some cultivars such as Leccino were introduced, especially in Istria
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