Pomological and Olive Oil Quality Characteristics Evaluation under Short Time Irrigation of Olive Trees cv. Chemlali with Untreated Industrial Poultry Wastewater

Amira Oueslati, Samia Dabbou, Nosra Methneni, Giuseppe Montevecchi, Vincenzo Nava, Rossana Rando, Giovanni Bartolomeo, Andrea Antonelli, Giuseppa Di Bella and Hedi Ben Mansour ()
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Amira Oueslati: Research Unit of Analysis and Process Applied on the Environment—APAE UR17ES32—Higher Institute of Applied Sciences and Technology of Mahdia, University of Monastir, Mahdia 5100, Tunisia
Samia Dabbou: Unit of Bioactive and Natural Substances and Biotechnology UR17ES49, Dentistry Faculty, University of Monastir, Avicenne Street, Monastir 5019, Tunisia
Nosra Methneni: Research Unit of Analysis and Process Applied on the Environment—APAE UR17ES32—Higher Institute of Applied Sciences and Technology of Mahdia, University of Monastir, Mahdia 5100, Tunisia
Giuseppe Montevecchi: Department of Life Sciences (Agro-Food Science Area), BIOGEST-SITEIA Interdepartmental Centre, University of Modena and Reggio Emilia, Piazzale Europa 1, 42124 Reggio Emilia, Italy
Vincenzo Nava: BioMorf Department, University of Messina, Viale Annunziata, Polo Universitario, 98168 Messina, Italy
Rossana Rando: BioMorf Department, University of Messina, Viale Annunziata, Polo Universitario, 98168 Messina, Italy
Giovanni Bartolomeo: BioMorf Department, University of Messina, Viale Annunziata, Polo Universitario, 98168 Messina, Italy
Andrea Antonelli: Department of Life Sciences (Agro-Food Science Area), BIOGEST-SITEIA Interdepartmental Centre, University of Modena and Reggio Emilia, Piazzale Europa 1, 42124 Reggio Emilia, Italy
Giuseppa Di Bella: BioMorf Department, University of Messina, Viale Annunziata, Polo Universitario, 98168 Messina, Italy
Hedi Ben Mansour: Research Unit of Analysis and Process Applied on the Environment—APAE UR17ES32—Higher Institute of Applied Sciences and Technology of Mahdia, University of Monastir, Mahdia 5100, Tunisia

Sustainability, 2023, vol. 15, issue 5, 1-17

Abstract: The aim of this work was the investigation of the effect of wastewater generated from the poultry meat industry on the irrigation of olive trees, during a short time period, in order to evaluate its impact on pomological criteria and olive oil quality. Olive trees were subjected to irrigation with different water qualities: (i) poultry wastewater (PWW), (ii) poultry wastewater diluted with tap water 50:50 ( v / v ) (PWTWW), (iii) rain-fed cultivation system (control). The results showed that PWTWW contains the optimal mineral proportions, leading to improved pomological criteria. However, the highest significant pulp oil content was obtained using poultry wastewater irrigation (69.51%), while this was 66.71% using diluted poultry wastewater, and 58.03 % for the control. Poultry wastewater irrigation yielded the best results in oil standard quality indices. In addition, an enrichment in oil total polyphenols content was achieved. The oil fatty acid profile was not affected following irrigation with poultry wastewater. Nevertheless, there was a significant increase in the contents of oleic acid and alcohols, accompanied by a decrease in total sterols. However, heavy metals accumulation was observed in both fruits and olive oil. In conclusion, our results suggest that among the three water qualities, poultry wastewater is the best alternative to improve olive oil quality.

Keywords: Olea europaea; fruits; agro-industrial wastewater reuse; water shortage (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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