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Università di Parma (2015)

Relationship between environmental features and extra virgin olive oil in north Sardinia

Morrone, Lucia

Titre : Relationship between environmental features and extra virgin olive oil in north Sardinia

Auteur : Morrone, Lucia

Université de soutenance : Università di Parma .

Grade : Ph. D. in Food Science and Technology 2015

Descriptif
There is a strict relationship between crop cultivation and the site-specificities of the territory in terms of yield, farmer incomes, cost efficiency, economic sustainability and product characteristics (Di Virgilio, 2012). This relationship is defined crop vocation, and its promotion means promoting not only the product but also the territory thus creating positive externalities. The environment in which the plant grows is the result of the mutual influence of abiotic (soil, temperature, water, light, wind) and biotic (living organisms, animals and plants) factors. All species have, in a more or less accentuated way, a sensibility to these factors. Furthermore, much of the plant productivity, i.e. both in yield and quality, depends on the environmental possibility to support plant requirements, and also it depends on the plant species ability to adapt to environment. The study was carried out in the north part of Sardinia Island, using cv. Bosana, the most widespread olive variety in the province of Sassari. The studied territory is within the borders of PDO (Protected Designation of Origin) “Sardegna” extra virgin olive oil, which actually includes the whole Island. The production regulations of the PDO “Sardegna” indicates the olive varieties composition of PDO product, which include the Bosana variety and other four autochthonous olive cultivars. Consequently, the PDO “Sardegna” results in an extra virgin olive oil strictly linked to the territory of origin The aim of this work is the assessment of the characteristics of cv. Bosana virgin olive oil in relation to the environmental features of its native territory, the northern part of Sardinia region. Moreover, keeping in mind the decisive role played by the environmental on plant physiological processes, a trial to understand (i) the environmental effects on ripeness trend and (ii) the effect of ripening stages on chemical and sensory characteristic of Bosana virgin olive oil has been carried out.

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