Olive mill wastewater microconstituents composition according to olive variety and extraction process

Autor: Agnès Cornu, Benoît Graulet, Moufida Aggoun, Josiane Portelli, Rabah Arhab, Malika Barkat
Přispěvatelé: Institut de la Nutrition de l'Alimentation et des Technologies Agro-Alimentaire (INATAA), Université Larbi-Ben-Mhidi [Oum-El-Bouaghi] (OEB), Unité Mixte de Recherche sur les Herbivores - UMR 1213 (UMRH), VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Institut National de la Recherche Agronomique (INRA)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, French-Algerian Program for Higher Education in France (PROFAS), INRA laboratory, Institut National de la Recherche Agronomique (INRA)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement
Rok vydání: 2016
Předmět:
Zdroj: Food Chemistry
Food Chemistry, Elsevier, 2016, 209, pp.72-80. ⟨10.1016/j.foodchem.2016.04.034⟩
ISSN: 0308-8146
Popis: International audience; Olive oil production yields a considerable amount of wastewater, a powerful pollutant that is currently discarded but could be considered as a potential source of valuable natural products due to its content in phenolic compounds and other natural antioxidants. The aim of this work was to explore the variability in olive mill wastewater composition from Algerian olive oil mills considering extraction processes (traditional discontinuous press vs 3-phases centrifugal system) and olive varieties (Azerraj, Sigoise, Chemlal). Whereas pH, dry or organic matter content didn’t vary, there was a significant difference in ash content according to extraction process and olive variety. Carotenoid content was 2.2-fold higher with 3-phases than with press systems whereas tocopherol content was not significantly different. Among the phenolic compounds quantified, tyrosol was usually the most abundant whereas oleuropein concentrations were highly variable. Differences in phenolic compound concentrations were more pronounced between olive varieties than between processes.
Databáze: OpenAIRE