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Evaluation of the acidity in samples of virgin olive oil for the 1995-2005 period and correlation between the collected data and the performed sensory analysis
Erika Bešter, Milena Bučar-Miklavčič, Bojan Butinar, Vasilij Valenčič, 2007, izvirni znanstveni članek

Opis: The acidity and organoleptic characteristics of virgin olive oil produced in Slovenian Istra were studied. The acidity of 4,871 samples of virgin olive oils was determined for the 1995-2005 period. 135 samples produced in crop year 2002/2003 with acidity below 0.2% (w/w) and 291 samples of crop year 2005/2006 were sensory evaluated. According to sensory evaluation in crop year 2002/2003, 128 out of 135 samples were classified as extra virgin olive oils, while 7 samples did not reach the specified requirements. In crop year 2005/2006, it was established that 71.5% of the analysed samples complied with extra virgin category, 24.4% with virgin and 4.1% with lampante. Time of harvest, storage conditions before processing, and time from picking to processing all influenced the oil quality, whereas olive cultivars did not. Chemical and sensory analyses were performed according to the Commission Regulation (EEC) No 2568/91 and added annexes.
Najdeno v: osebi
Ključne besede: olive oil acidity, grading of oil, harvest, storage, processing, sensory analysis
Objavljeno: 10.07.2015; Ogledov: 1913; Prenosov: 9
URL Polno besedilo (0,00 KB)

Karotenoidi v oljčnem olju
Erika Bešter, Milena Bučar-Miklavčič, Vasilij Valenčič, Bojan Butinar, 2007, pregledni znanstveni članek

Opis: The pigments profile of virgin olive oil is determined by the pigments initially present in the fruits and their derivatives formed during the extraction process. The presence of other carotenoids or chlorophyll pigments at levels other than that associated with the extraction process indicate that oil has been adulterated or the extraction process was incorrect. The yellow pigments in olive oil are carotenoids and the green pigments are chlorophyll pigments. The amount of carotenoids in oil depends on variety, maturation index, treating of olive fruits before extraction, extraction process, and oil treating. Carotenes as well as xantophylls were identified in virgin olive oils. Lutein is usually the predominating compound in the carotenoid fraction of pigments, followed by B-carotene. The rest of carotenoid fraction are minor xantophylls, such as 5,6-epoxides, 5,8-epoxides or furanoids, and xantophyll esters. Cis-isomeres are also formed during the extraction process. The vitamin activity of cis-isomeres is lower as the activity of trans-isomeres. Pigment profile of olive oil is a useful tool for variety classification and authenticity determination. Carotenoids can act as antioxidants or prooxidants. Their antioxidant/prooxidant activity depend on concentration, solvent, and free radicals structure, presence of other antioxidants, metals and oxygen. The antioxidant activity of carotenoids has not been satisfactory explained as yet. There are three possible mechanisms of carotenoids antioxidant activity. Carotenoids are singlet oxygen quenchers and free radical scavengers and they act as light filters. Findings about carotenoids activity in vitro should not be translated to activity in biological systems. Carotenoids are an important part of human diet because of their antioxidant activity and some of them are also provitamins A. Carotenoids probably prevent some diseases, such as cardiovascular diseases and certain cancers, but can in certain circumstances increase the risk of disease.
Najdeno v: osebi
Ključne besede: oljčno olje, karotenoidi, antioksidanti
Objavljeno: 10.07.2015; Ogledov: 2139; Prenosov: 15
URL Polno besedilo (0,00 KB)

Analiza prodajnih poti vrtnin v Pomurju
Erika Boštjančič, 2013, diplomsko delo

Najdeno v: osebi
Ključne besede: poslovno načrtovanje, trženje, prodajne poti, vrtnine, analiza
Objavljeno: 15.10.2013; Ogledov: 962; Prenosov: 63
URL Polno besedilo (0,00 KB)
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Vpliv ugleda delodajalca na zaposlovanje
Erika Škergat, 2011, diplomsko delo

Najdeno v: osebi
Ključne besede: ugled, blagovna znamka, delodajalci, zaposlovanje, trg delovne sile
Objavljeno: 15.10.2013; Ogledov: 1457; Prenosov: 46
URL Polno besedilo (0,00 KB)
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Garden as an eye
Erika Zlatkov, 2008, izvirni znanstveni članek

Opis: This paper concerns the garden of the Venetian palace Soranzo-Cappello and is situated in a wider iconological and symbolic-theoretical framework. The garden is a continuous meeting of opposites, which succeed in coming to life as a harmonious whole; it is a symbolic space on account of its specific emplacement between nature and cultural landscape, and it is a space of symbols, since it has its own inner speech. The garden's appearance is subjected to climatic, temporal and terrestrial influences, and also to the will of man, who shapes it. The purpose of this study is to lead ourselves to thinking of a garden as a work of art, for man's power of expression is not only real, material; it is also spiritual, immaterial. The Venetian garden represents the interweaving of both. It is a work of art in open space, to which is also given a useful value. It is an emblematic figure, a mental and formal space which differs from the surroundings - both reflective and thoughtful
Najdeno v: osebi
Ključne besede: gardens, genesis, art, myths, visual message, Venice, palace Soranzo-Cappello
Objavljeno: 10.07.2015; Ogledov: 855; Prenosov: 11
URL Polno besedilo (0,00 KB)

Telesna drža otrok med 4. in 6. letom
Erika Černigoj, 2014, diplomsko delo

Najdeno v: osebi
Ključne besede: telesna drža, vzroki, metode, opazovanje, vrednotenje
Objavljeno: 10.07.2015; Ogledov: 1773; Prenosov: 116
URL Polno besedilo (0,00 KB)
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Geometrijska telesa v predšolskem obdobju
Erika Božič, 2014, diplomsko delo

Najdeno v: osebi
Ključne besede: geometrija, geometrijska telesa, predšolski otroci, predšosko obdobje, matematika
Objavljeno: 10.07.2015; Ogledov: 1226; Prenosov: 83
URL Polno besedilo (0,00 KB)
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