Nutritional and health claims compliance of olive oils produced from centenarian olive trees

Bortoluzzi, Leticia; Casal, Susana; Cruz, Rebeca; Peres, António M.; Baptista, Paula; Rodrigues, Nuno

http://hdl.handle.net/10198/34941

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Abstract(s)

This work examined whether centenarian trees could be a source of virgin olive oil (VOO) that accomplishes nutritional and health claims regarding unsaturated fatty acids (UFA), tocopherols and phenolic compounds (tyrosol and hydroxytyrosol derivatives). A total of 159 VOOs from centenarian trees of Côa Valley-Portugal were analysed to assess their compliance with those claims. All VOOs met the criteria for ‘high source of UFA’ (≥70% of total FA). The oils’ vitamin E richness ensured compliance with the claim (≥36 mg/kg of oil), with some samples surpassing 484 mg/kg. Regarding polyphenols, 88.6% of the oils fulfilled the requirements (≥5 mg/20g of oil) for health claims. Among these, 75% fell within 5–10 mg/20g, with up to 32 mg/20g. These findings underscore the significant nutritional and health potential inherent to oils extracted from centenarian trees, emphasizing the importance of preserving these specimens for their genetic diversity and valuable properties.

Keywords

Beneficial properties Centenarian olive trees Chemical composition Differentiation Sustainability

URI

http://hdl.handle.net/10198/34941

Citation

Bortoluzzi, Leticia; Casal, Susana; Cruz, Rebeca; Peres, António M.; Baptista, Paula; Rodrigues, Nuno (2025). Nutritional and health claims compliance of olive oils producedfrom centenarian olive trees. Cogent Food & Agriculture. ISSN 2331-1932. 11:1 p. 1- 13