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http://hdl.handle.net/10198/20785
Título: | The use of gamma radiation for extractability improvement of bioactive compounds in olive oil wastes |
Autor: | Madureira, Joana Dias, Maria Inês Pinela, José Calhelha, Ricardo C. Barros, Lillian Santos-Buelga, Celestino Margaça, Fernanda M.A. Ferreira, Isabel C.F.R. Cabo Verde, Sandra |
Palavras-chave: | Bioactivity Industrial wastes valorization Ionizing radiation applications Olive pomace Phenolic compounds |
Data: | 2020 |
Citação: | Madureira, Joana; Dias, Maria Inês; Pinela, José; Calhelha, Ricardo C.; Barros, Lillian; Santos-Buelga, Celestino; Margaça, Fernanda M.A.; Ferreira, Isabel C.F.R.; Cabo Verde, Sandra (2020). The use of gamma radiation for extractability improvement of bioactive compounds in olive oil wastes. Science of the Total Environment. ISSN 0048-9697. 727, p. 1-11 |
Resumo: | Olive pomace is an environmentally detrimental waste from olive oil industry, containing large amounts of bioactive compounds that might be used by the food industry. In this work, the effects of gamma radiation on phenolic compounds and bioactive properties (antioxidant, antimicrobial activities and hepatotoxicity) of Crude Olive Pomace (COP) and Extracted Olive Pomace (EOP) extracts were evaluated. Hydroxytyrosol was the main phenolic compound identified in both olive pomace extracts (24–25 mg/g). The gamma radiation treatment of olive pomace improved at least 2-fold the extractability of phenolic compounds. Moreover, results suggested that gamma radiation at 5 kGy increased the antioxidant activity in EOP, while keeping the ability to protect erythrocytes against oxidation-induced haemolysis. Gamma radiation at 5 kGy could be a suitable technology for olive oil pomaceswaste valorization, contributing to enhance extraction of phenolic compounds and bioactive properties, especially when applied on extracted material. |
Peer review: | yes |
URI: | http://hdl.handle.net/10198/20785 |
DOI: | 10.1016/j.scitotenv.2020.138706 |
ISSN: | 0048-9697 |
Aparece nas colecções: | CIMO - Artigos em Revistas Indexados à WoS/Scopus |
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