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Pregled bibliografske jedinice broj: 662678

Chemometric Analysis of Croatian Extra Virgin Olive Oils from Central Dalmatia Region


Jović, Ozren; Smolić, Tomislav; Jurišić, Zorica; Meić, Zlatko; Hrenar, Tomica
Chemometric Analysis of Croatian Extra Virgin Olive Oils from Central Dalmatia Region // Croatica chemica acta, 86 (2013), 3; 335-344 doi:10.5562/cca2377 (međunarodna recenzija, članak, znanstveni)


CROSBI ID: 662678 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Chemometric Analysis of Croatian Extra Virgin Olive Oils from Central Dalmatia Region

Autori
Jović, Ozren ; Smolić, Tomislav ; Jurišić, Zorica ; Meić, Zlatko ; Hrenar, Tomica

Izvornik
Croatica chemica acta (0011-1643) 86 (2013), 3; 335-344

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Croatia; extra virgin olive oils; ATR-FTIR spectroscopy; principal component analysis; cluster analysis

Sažetak
Extra virgin olive oil samples were collected from different geographical areas of Central Dalmatia region in Croatia including locations both on the coast and islands. This set included 41 oils of cul-tivar Oblica, 1 per cultivars Coratina and Leccino, and 5 of mixed cultivars Lastovka and Oblica. Attenuated total reflectance (ATR) spectra of non-treated samples were recorded and principal component analysis (PCA) was carried out on a set of obtained spectra, as well as their first and second derivatives. The quality of PCA models was assessed using leave-one-out cross-validation and optimal number of principal components was determined. In the case of ATR spectra, the first principal component accounted for 42.92 % of the total variance among the samples and the optimal number of components was 6, whereas in the case of second derivatives the first principal component accounted for 95.76 % of the total variance and the optimal number of components was 3. Classification of olive oils on the basis of geographical origin was proposed and underlying spectral differences among the spectra were determined by investigating principal component loadings. These differences arise as a result of variations in fatty acid composition. It was found out that ATR in combination with PCA could easily distinguish between samples collected from the coastal area and those from the islands. Classification results were further confirmed by using spherical principal components procedure, projection pursuit and robust PCA, as well as hierarchical cluster analysis.

Izvorni jezik
Engleski

Znanstvena područja
Kemija



POVEZANOST RADA


Projekti:
119-1191342-2959 - Spektroskopska analiza nezasićenih sustava i spojeva metala (Miljanić, Snežana, MZOS ) ( POIROT)

Ustanove:
Prirodoslovno-matematički fakultet, Zagreb

Profili:

Avatar Url Tomica Hrenar (autor)

Avatar Url Zorica Jurišić (autor)

Avatar Url Zlatko Meić (autor)

Avatar Url Ozren Jović (autor)

Avatar Url Tomislav Smolić (autor)

Citiraj ovu publikaciju

Jović, Ozren; Smolić, Tomislav; Jurišić, Zorica; Meić, Zlatko; Hrenar, Tomica
Chemometric Analysis of Croatian Extra Virgin Olive Oils from Central Dalmatia Region // Croatica chemica acta, 86 (2013), 3; 335-344 doi:10.5562/cca2377 (međunarodna recenzija, članak, znanstveni)
Jović, O., Smolić, T., Jurišić, Z., Meić, Z. & Hrenar, T. (2013) Chemometric Analysis of Croatian Extra Virgin Olive Oils from Central Dalmatia Region. Croatica chemica acta, 86 (3), 335-344 doi:10.5562/cca2377.
@article{article, year = {2013}, pages = {335-344}, DOI = {10.5562/cca2377}, keywords = {Croatia, extra virgin olive oils, ATR-FTIR spectroscopy, principal component analysis, cluster analysis}, journal = {Croatica chemica acta}, doi = {10.5562/cca2377}, volume = {86}, number = {3}, issn = {0011-1643}, title = {Chemometric Analysis of Croatian Extra Virgin Olive Oils from Central Dalmatia Region}, keyword = {Croatia, extra virgin olive oils, ATR-FTIR spectroscopy, principal component analysis, cluster analysis} }
@article{article, year = {2013}, pages = {335-344}, DOI = {10.5562/cca2377}, keywords = {Croatia, extra virgin olive oils, ATR-FTIR spectroscopy, principal component analysis, cluster analysis}, journal = {Croatica chemica acta}, doi = {10.5562/cca2377}, volume = {86}, number = {3}, issn = {0011-1643}, title = {Chemometric Analysis of Croatian Extra Virgin Olive Oils from Central Dalmatia Region}, keyword = {Croatia, extra virgin olive oils, ATR-FTIR spectroscopy, principal component analysis, cluster analysis} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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