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Molecules 2013, 18(9), 10639-10647; doi:10.3390/molecules180910639

Volatile Constituents and Antioxidant Activity of Peel, Flowers and Leaf Oils of Citrus aurantium L. Growing in Greece

1
Laboratory of Pomology, School of Horticulture, Aristotle University of Thessaloniki 54124, Greece
2
Hellenic Agricultural Organization - Demeter (former NAGREF), Department of Aromatic and Medicinal Plants, Thessaloniki 57001, Greece
*
Author to whom correspondence should be addressed.
Received: 24 June 2013 / Revised: 23 August 2013 / Accepted: 28 August 2013 / Published: 2 September 2013
(This article belongs to the Section Natural Products)
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Abstract

The volatile constituents of the essential oils of the peel, flower (neroli) and leaves (petitgrain) of bitter orange (Citrus aurantium L.) growing in Greece were studied by GC-MS. The analytical procedures enabled the quantitative determination of 31 components. More specifically, the components of the essential oils identified were: twelve in the peel, twenty-six in the flowers, and twenty and sixteen in old and young leaves, respectively. The major constituents of the different parts of Citrus aurantium L. essential oils were: β-pinene (0.62%–19.08%), limonene (0.53%–94.67%), trans-β-ocimene (3.11%–6.06%), linalool (0.76%–58.21%), and α-terpineol (0.13%–12.89%). The DPPH test demonstrated that the essential oils in the old leaves had the maximum antioxidant activity, followed by the flowers, young leaves and the peel in that order. This study updates the data in the literature on the essential oils of bitter orange, and provides information on the composition of the oils for a further evaluation of this product.
Keywords: antioxidant activity; Citrus aurantium L.; essential oils composition; neroli; peel; petitgrain antioxidant activity; Citrus aurantium L.; essential oils composition; neroli; peel; petitgrain
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Sarrou, E.; Chatzopoulou, P.; Dimassi-Theriou, K.; Therios, I. Volatile Constituents and Antioxidant Activity of Peel, Flowers and Leaf Oils of Citrus aurantium L. Growing in Greece. Molecules 2013, 18, 10639-10647.

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