DETECTION OF CORN AND SUNFLOWER OIL ADULTERATIONS OF OLIVE OILS USING FLUORESCENCE SPECTROSCOPY
A novel approach for the detection of admixtures of vegetable (corn and sunflower) oils in commercially available olive oils on a qualitative level is presented. Chemical analysis of the contents of fatty acids in each of the model systems under study is performed. The dependence of the ratio of the two main fluorescence intensity peaks 1 2 F / F and that of the linoleic to oleic acids C18:2 / C18:1 is studied. It is shown that an increase of the concentration of the adulterant the maximum of the first fluorescence peak exhibits a wavelength shift. Fluorescence analysis can be used for a qualitative real time determination of the presence ofadulterants in olive oil by comparison of the observed particular fluorescence spectrum with those from a database of spectra of olive oils and adulterants from a particular region.
Anahtar Kelimeler:
corn oil, fatty acid composition, fluorescence, sunflower oil, olive oil
DETECTION OF CORN AND SUNFLOWER OIL ADULTERATIONS OF OLIVE OILS USING FLUORESCENCE SPECTROSCOPY
A novel approach for the detection of admixtures of vegetable (corn and sunflower) oils in commercially available olive oils on a qualitative level is presented. Chemical analysis of the contents of fatty acids in each of the model systems under study is performed. The dependence of the ratio of the two main fluorescence intensity peaks 1 2 F / F and that of the linoleic to oleic acids C18:2 / C18:1 is studied. It is shown that an increase of the concentration of the adulterant the maximum of the first fluorescence peak exhibits a wavelength shift. Fluorescence analysis can be used for a qualitative real time determination of the presence ofadulterants in olive oil by comparison of the observed particular fluorescence spectrum with those from a database of spectra of olive oils and adulterants from a particular region.
Keywords:
corn oil, fatty acid composition, fluorescence, sunflower oil, olive oil,
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- ISSN: 2147-0294
- Yayın Aralığı: Yılda 2 Sayı
- Başlangıç: 2000
- Yayıncı: Trakya Üniversitesi
Sayıdaki Diğer Makaleler
TÜRKİYE FLORASINA AİT SILENE L. CİNSİNİN TEHLİKE KATEGORİLERİ VE BULUNAN YENİ TÜRLERİ
İSONİAZİD VE BAZI AMİNO ASİTLERİN GEÇİŞ METALLERİ İLE OLUŞTURDUĞU ÜÇLÜ KOMPLEKSLERİN TAYİNİ
Bilgiç Alkaya, Serap Karaderi, Gülbin Erdoğan
TOPRAKTAN GELEN KATALİZÖR: MONTMORİLLONİT
DETECTION OF CORN AND SUNFLOWER OIL ADULTERATIONS OF OLIVE OILS USING FLUORESCENCE SPECTROSCOPY