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Life-cycle greenhouse gas emissions of portuguese olive oil

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Summary:The main goal of this paper was to assess the greenhouse gas (GHG) intensity of olive oil production in Portugal. A life-cycle model and inventory were implemented for the entire production process, including a comprehensive analysis of olive cultivation, olive oil extraction, packaging, and distribution. Data originates from five differently-sized Portuguese olive growers and from a total of six olive oil mills, representing the three extraction processes in use: three-phase extraction, two-phase extraction, and traditional pressing. The results show that the GHG intensity lies in the range 1.8-8.2 kg CO2eq/liter and that the main contributors were fertilizers (production and field emissions). Efficient use of fertilizers thus seems to be a key factor for mitigating the GHG intensity of olive oil production.
Main Authors:Figueiredo, Filipa
Other Authors:Coroama, Vlad C.; Ramos, António Santos; Almeida, Arlindo; Ramalhosa, Elsa; Castanheira, Érica; Peres, Maria de Fátima; Carneiro, J.P.; Pereira, José Alberto; Feliciano, Manuel; Gomes, Paulo; Marques, Pedro; Freire, Fausto
Subject:Carbon footprint Olive plantations Environmental impact Extraction Greenhouse gas Life-cycle assessment Mediterranean diet
Year:2013
Country:Portugal
Document type:conference output
Access type:open access
Associated institution:Instituto Politécnico de Castelo Branco
Language:English
Origin:Repositório Científico do Instituto Politécnico de Castelo Branco

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