Influence of ripening index and water regime on the yield and quality of 'Moroccan Picholine' virgin olive oil
| Autor: | El Yamani Mohamed, Sakar El Hassan, Boussakouran Abdelali, Rharrabti Yahia |
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| Jazyk: | English<br />French |
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Oilseeds and fats, crops and lipids, Vol 27, p 19 (2020) |
| Druh dokumentu: | article |
| ISSN: | 2272-6977 2257-6614 |
| DOI: | 10.1051/ocl/2020015 |
| Popis: | The purpose of this work is to evidence the effects of ripening index and water regime on the quantity and quality indices of “Moroccan Picholine” virgin olive oil (VOO) produced in northern Morocco. Olive trees were subjected to full irrigation and rainfed conditions, and olive fruits were collected at different ripening times. Results showed that the extracted volume of VOO increased during ripening, and decreased when full irrigation was applied. In regard to VOO quality, the statistical analysis revealed the predominant effect of ripening index on the majority of the considered parameters, except total phenols content that was strongly influenced by water regime. At more advanced stages of maturity, lower values of peroxide value, K232, carotenoids, chlorophylls and total phenols were registered while more free fatty acids were accumulated. Moreover, full irrigation reduced total phenols and increased free fatty acids, even if a great amount of pigment content was scored. Correlation studies showed significant relationships between pigments content and oxidation indices (peroxide value and K232). |
| Databáze: | Directory of Open Access Journals |
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