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Naslov:Dynamics of oil quality parameters changes related to olive fruit fly attack
Avtorji:Koprivnjak, Olivera (Avtor)
Dminić, Ivana (Avtor)
Kosić, Urška (Avtor)
Majetić, Valerija (Avtor)
Godena, Sara (Avtor)
Valenčič, Vasilij (Avtor)
Datoteke:URL http://onlinelibrary.wiley.com/doi/10.1002/ejlt.201000298/abstract
 
Jezik:Angleški jezik
Vrsta gradiva:Delo ni kategorizirano
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FHŠ - Fakulteta za humanistične študije
Opis:In order to evaluate the role of intrinsic characteristics of olive cultivars on dynamics of oil quality parameters changes related to the olive fruit fly (Bactrocera oleae (Gmelin)) attack, two specific olive cultivars were compared, Istarska bjelica and Buža. I. bjelica is characterised by late ripening, a lower flesh/stone mass ratio and higher oleic/linoleic ratio, the total phenols content and oil mass fraction compared to Buža. Oil samples were obtained at two harvesting dates, from fruit lots with 0, 25, 50, 75 and 100% of infestation degree, expressed by mass. Oil and water content in olive paste, as well as total phenols, fatty acids composition and standard chemical and sensorial oil quality parameters were determined. At equal maturity level, the cultivar with a higher oil (24 +- 1% vs. 16 +- 1%) and lower water content (54 +- 2% vs. 61 +- 4%) was more susceptible to hydrolytic degradation, while the one with the lower total phenols content (231 +- 32 vs. 575 +- 124mg/kg) and oleicžlinoleic fatty acid ratio (5.7 vs. 9.1) was more liable to oxidative deterioration of oil. Lower susceptibility to negative flavours formation could be related to the absence of ripening induced by fly attack and less favourable environment for larvae growth (higher total phenols content, lower water content and flesh/stone mass ratio)
Ključne besede:Bactrocera oleae, Olive cultivars, Olive fruit fly, Olive oil quality
Leto izida:2010
Št. strani:str. 1033-1040
Številčenje:Vol. 112, iss. 9
ISSN:1438-7697
UDK:665.327.3:632
COBISS_ID:1902291 Povezava se odpre v novem oknu
Število ogledov:1809
Število prenosov:44
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
Področja:Gradivo ni uvrščeno v področja.
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Skupna ocena:(0 glasov)
Vaša ocena:Ocenjevanje je dovoljeno samo prijavljenim uporabnikom.
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