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Influence of technology, storage and exposure on components of extra virgin olive oil (Bosana cv) from whole and de-stoned fruits

Del Caro, Alessandra and Vacca, Vincenzo and Poiana, Marco and Fenu, Paolo Antonio Maria and Piga, Antonio <1965- > (2006) Influence of technology, storage and exposure on components of extra virgin olive oil (Bosana cv) from whole and de-stoned fruits. Food Chemistry, Vol. 98 (2), p. 311-316. ISSN 0308-8146. Article.

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DOI: 10.1016/j.foodchem.2005.05.075


We investigated the influence of technology, storage and exposure on quality parameters, minor components, oxidative stability and antioxidant activity in two extra virgin olive oils of Bosana cv, obtained from whole (WO) and de-stoned fruits (DO), processed with a two-phase decanter. DO oils showed great stability and, consequently, had a longer shelf-life than WO oils. During storage, the former maintained lower values of free acidity, higher values of chlorophylls, carotenoids and α-tocopherol, longer oxidative stability and higher antioxidant activity than the latter. Peroxide indices were not significantly different between the two oils, while spectrophotometric indices, during storage, increased more in DO oils than in WO oils. The total phenol content behaviour patterns during storage were very similar in both oil samples, with a higher value in WO oils. Exposure to light significantly decreased the chlorophylls, carotenoid, phenol, α-tocopherol and stability values, as expected, but antioxidant activity was not influenced by exposure conditions.

Item Type:Article
ID Code:1562
Uncontrolled Keywords:Extra-virgin olive oil, de-stoned paste, whole paste, storage, exposure
Subjects:Area 07 - Scienze agrarie e veterinarie > AGR/15 Scienze e tecnologie alimentari
Divisions:001 Università di Sassari > 01 Dipartimenti > Scienze ambientali agrarie e biotecnologie agro-alimentari
Additional Information:Pubblicato online il 15 agosto 2005.
Deposited On:18 Aug 2009 10:05

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