1 Ocak 2019 Dergi makalesi Açık Erişim

Uncu, Oguz; Ozen, Banu; Tokatli, Figen

JSON-LD (schema.org)

{
  "@context": "https://schema.org/", 
  "@id": 70381, 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "affiliation": "Izmir Inst Technol, Dept Food Engn, Urla Izmir, Turkey", 
      "name": "Uncu, Oguz"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Izmir Inst Technol, Dept Food Engn, Urla Izmir, Turkey", 
      "name": "Ozen, Banu"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Izmir Inst Technol, Dept Food Engn, Urla Izmir, Turkey", 
      "name": "Tokatli, Figen"
    }
  ], 
  "datePublished": "2019-01-01", 
  "description": "It was aimed to predict fatty acid ethyl ester (FAEE), wax, diacylglycerol (DAG) and color pigment contents of olive oils by using rapid and non-destructive spectroscopic techniques (FTIR and UV-vis) individually and in combination. Prediction models were constructed by using partial least squares (PLS) regression with cross and external validation. FAEEs were estimated best with FTIR + UV-Vis spectroscopy (R-cv.(2) = 0.84, R-pred(2) = 0.90, and RPD = 3.0). PLS model with R-cv.(2) = 0.79, R-pred(2) = 0.71, and RPD = 1.9 was obtained for the estimation of 1,2 DAG using FTIR spectral data. Major pigments, lutein, pheophytin a and their derivatives and total xanthophylls were quantified successfully by FTIR + UV-Vis with a range of R-cv.(2) of 0.71-0.85, R-pred(2) of 0.70-0.84, and RPD = 1.5-2.5 values but the prediction of the rest of the pigments were poor (R-cv(2) = 0.60-0.76, R-pred(2) = 0.42-0.62, and RPD = 1.2-1.5). Combination of two spectral data resulted in average prediction of wax content of oils (R-cal(2) = 0.95, R-pred(2) = 0.75, and RPD = 1.9). FTIR and UV-vis spectroscopic techniques in combination with PLS regression provided promising results for the prediction of several chemical parameters of olive oils; therefore, they could be alternatives to traditional analysis methods.", 
  "headline": "Use of FTIR and UV-visible spectroscopy in determination of chemical characteristics of olive oils", 
  "identifier": 70381, 
  "image": "https://aperta.ulakbim.gov.tr/static/img/logo/aperta_logo_with_icon.svg", 
  "license": "http://www.opendefinition.org/licenses/cc-by", 
  "name": "Use of FTIR and UV-visible spectroscopy in determination of chemical characteristics of olive oils", 
  "url": "https://aperta.ulakbim.gov.tr/record/70381"
}