Stereospecific distribution of fatty acids in triacylglycerols of olive oils |
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Authors: | Stefania Vichi Lorena Pizzale Lanfranco S Conte |
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Affiliation: | 1. Departament de Nutrició i Bromatologia, Centre de Referència en Tecnología dels Aliments (CeRTA), Facultat de Farmàcia, Universitat de Barcelona, Barcelona, Spain;2. Dipartimento di Scienze degli Alimenti, Università degli Studi di Udine, Udine, Italy |
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Abstract: | The positional distribution of fatty acids (FA) in triacylglycerols (TAG) of 47 virgin olive oils from diverse cultivars grown in distinct areas of North‐Eastern Italy was studied. Few data were previously available on oils from these geographical areas. The effects of climatic and geographical conditions on the stereospecific distribution of TAG in olive oil were confirmed. Moreover, the results of the stereospecific analysis were used to evaluate the preferential esterification position of each FA on the basis of the degree of unsaturation and the chain length. The data of the stereospecific analysis of olive oil TAG can contribute to the determination of the selectivity of olive fruit acyltransferases for distinct FA. |
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Keywords: | Stereospecific analysis triacylglycerols olive oil geographical origin |
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