Updated Organic Composition and Potential Therapeutic Properties of Different Varieties of Olive Leaves from IOlea europaea/I

Olea europaea L. folium merits further exploration of the potential of its substrates for therapeutic supplements. Quantitative and qualitative analyses were conducted on samples of Madural, Verdeal, and Cobrançosa elementary leaves and leaf sprouts (mamões) collected in the region of Valpaços, Port...

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Published inPlants (Basel) Vol. 12; no. 3
Main Authors Ferreira, Diana Melo, de Oliveira, Natália M, Chéu, Maria Helena, Meireles, Diana, Lopes, Lara, Oliveira, Maria Beatriz, Machado, Jorge
Format Journal Article
LanguageEnglish
Published MDPI AG 01.02.2023
Subjects
Analysis
Chemical properties
Health aspects
Leaves
Olive
Saturated fatty acids
Tocopherols
Varieties
Portugal
Japan
Germany
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Summary:Olea europaea L. folium merits further exploration of the potential of its substrates for therapeutic supplements. Quantitative and qualitative analyses were conducted on samples of Madural, Verdeal, and Cobrançosa elementary leaves and leaf sprouts (mamões) collected in the region of Valpaços, Portugal. Organic analysis assessed the moisture content, total carbohydrates, ash, protein, and fat contents, total phenolic content (TPC), vitamin E, and fatty acid (FA) profiles. Moisture content was determined through infrared hygrometry and TPC was determined by a spectrophotometric method. Concerning organic analysis, all leaf samples showed similar moisture content, though Cobrançosa’s leaf sprouts and Verdeal’s elementary leaves had slightly lower contents. Meanwhile, these cultivars also showed a higher TPC, α-tocopherol isomer, and fatty acid composition (FAC). FAC in all samples exhibited higher contents of PUFA and SFA than MUFA, with a predominance of linolenic and palmitic acids. Organic analyses of Cobrançosa’s leaf sprouts and Verdeal’s elementary leaf extracts allow for the prediction of adequate physiological properties regarding neuroinflammatory, neurobehavioral, metabolic, cardiovascular, osteo-degenerative, anti-ageing, pulmonary, and immunological defense disorders. These physiological changes observed in our preliminary in silico studies suggest an excellent nutraceutical, which should be borne in mind during severe pandemic situations.
ISSN:2223-7747
2223-7747
DOI:10.3390/plants12030688