Naslov
Olive fruit characteristics changes and oil accumulation in Oblica and Leccino cultivars during ripening

Autori
Jukić Špika, Maja ; Žanetić, Mirella ; Kraljić, Klara ; Pasković, Igor ; Škevin, Dubravka

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of Abstract, VIII International Olive Symposium / - , 2016

ISBN
978-953-99819-8-1

Skup
VIII International Olive Symposium

Mjesto i datum
Split, Hrvatska, 10.10.2016. - 14.10.2016

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
ripening; crop year; oil accumulation; cultivars; fruit charactiristics

Sažetak
Monovarietal virgin olive oils have a special importance in the olive bio-diversity preservation. Ripening index is used mainly as a guideline to establish the optimum olive harvest time in order to produce high quality virgin olive oils with well-balanced oil yield and content of bioactive compounds. Influence of cultivar, year and growing location on fruit quality parameters during fruit ripening was studied. The present data provide information about the maturation patterns of the most important Croatian cultivar Oblica and Italian cultivar Leccino harvested at bi-weekly periods during three crop seasons. Ripening index, fruit dry matter content and oil content expressed on a dry matter (%) and the mass of fresh olives were analyzed. The fruits were processed by same way, using centrifugal extraction on Abencor laboratory oil mill, after which the extractability was calculated. Mutual correlation of examined parameters and correlated relations of these parameters with the climatic conditions during three consecutive years of research was done. The olive fruit parameters significantly depend on the cultivar, year, climate and the fruit ripening index. The dry matter content in Oblica cultivar ranged from 32.0 to 45.6% and the average value was 38.67%, while the dry matter in Leccino ranged from 38.7 to 52.9% with average value of 43.93%. Oil content, when expressed on a dry weight basis, increased in both cultivars with the ripening. The average value of the oil content in Oblica was 41.5% and in Leccino 36.4%. There was a significant positive correlation between the ripening index and the dry matter content and oil content. The dry matter content was positively correlated with the amount of rainfall in the early stages of fruit development. Differences in extractability depending on the harvest time and cultivar were recorded.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija), Prehrambena tehnologija

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