1 Ocak 2019 Dergi makalesi Açık Erişim

Uncu, Oguz; Ozen, Banu; Tokatli, Figen

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  <identifier identifierType="URL">https://aperta.ulakbim.gov.tr/record/70381</identifier>
  <creators>
    <creator>
      <creatorName>Uncu, Oguz</creatorName>
      <givenName>Oguz</givenName>
      <familyName>Uncu</familyName>
      <affiliation>Izmir Inst Technol, Dept Food Engn, Urla Izmir, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Ozen, Banu</creatorName>
      <givenName>Banu</givenName>
      <familyName>Ozen</familyName>
      <affiliation>Izmir Inst Technol, Dept Food Engn, Urla Izmir, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Tokatli, Figen</creatorName>
      <givenName>Figen</givenName>
      <familyName>Tokatli</familyName>
      <affiliation>Izmir Inst Technol, Dept Food Engn, Urla Izmir, Turkey</affiliation>
    </creator>
  </creators>
  <titles>
    <title>Use Of Ftir And Uv-Visible Spectroscopy In Determination Of Chemical Characteristics Of Olive Oils</title>
  </titles>
  <publisher>Aperta</publisher>
  <publicationYear>2019</publicationYear>
  <dates>
    <date dateType="Issued">2019-01-01</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://aperta.ulakbim.gov.tr/record/70381</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1016/j.talanta.2019.03.116</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="http://www.opendefinition.org/licenses/cc-by">Creative Commons Attribution</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">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.</description>
  </descriptions>
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