Application of stable isotope ratio analysis to the characterization of the geographical origin of olive oils.
To gain information about the geographical origin of oil samples, measurements of delta(13)C and delta(18)O of the whole oil and some of its fractions have been performed on samples coming from fruits of Olea europaea L. produced in Greece, Morocco, Spain, Italy, Tunisia, and Turkey. The results obtained by applying statistical procedures have given pieces of evidence that oil samples have shown the trend to cluster according to the different climatic areas of growing environment of fruits. Some confusion has been observed for samples coming from neighboring countries having similar climates.
Angerosa
F
F
Istituto Sperimentale per la Elaiotecnica, Contr. da Fonte Umano, 65013 Città S. Angelo, Pescara, Italy. elaiotec@unich.it
Bréas
O
O
Contento
S
S
Guillou
C
C
Reniero
F
F
Sada
E
E
D002247:Carbon Isotopes / Q000032:analysis; D004042:Dietary Fats, Unsaturated; D005843:Geography; D006115:Greece; D007558:Italy; D009018:Morocco; D000069463:Olive Oil; D010103:Oxygen Isotopes / Q000032:analysis; D010938:Plant Oils / Q000737:chemistry* / Q000145:classification*; D013030:Spain; D014416:Tunisia; D014421:Turkey
D002247:Carbon Isotopes; D004042:Dietary Fats, Unsaturated; D000069463:Olive Oil; D010103:Oxygen Isotopes; D010938:Plant Oils