Melatonin and related bioactive compounds in commercialized date palm fruits (Phoenix dactylifera L.): correlation with some antioxidant parameters
| Autor: | Jesús M. Míguez, Antía Verde, Mercedes Gallardo |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Antioxidant
030309 nutrition & dietetics DPPH medicine.medical_treatment Biology Biochemistry Industrial and Manufacturing Engineering Melatonin 03 medical and health sciences chemistry.chemical_compound 0404 agricultural biotechnology Auxin medicine Food science chemistry.chemical_classification 0303 health sciences food and beverages Ripening 04 agricultural and veterinary sciences General Chemistry 040401 food science chemistry Phoenix dactylifera Palm Food Science Biotechnology Date Fruit medicine.drug |
| Zdroj: | European Food Research and Technology. 245:51-59 |
| ISSN: | 1438-2385 1438-2377 |
| Popis: | The presence of melatonin in plant foodstuffs is a matter of growing interest since its antioxidant properties and the possible benefits for health of consumers. Fruits of date palm (Phoenix dactylifera, L.) are highly appreciated because of their nutritional value and healthy properties related to high content in antioxidant compounds present in them. In this study, we show that dates’ antioxidant properties persist in several commercialized varieties typical of the European markets, as compared to values referenced from studies in date fruit varieties collected in the origin countries. We also show for the first time that melatonin and one of its isomers are present in dates, being that the isomer content is several times higher than melatonin (in the range of 1 µg per 100 g of fresh weight). The isomer content was highly correlated with total phenolic compounds and total antioxidant capacity in the date varieties. Additionally, high levels of the indoleamines, serotonin and auxin accumulate in dates, which could be related to fruit ripening. All the indole derivatives analyzed in dates exhibited antioxidant activity as assayed by DPPH, with differences among the compounds and concentrations used. These results support that melatonin, its isomer, and related indoles present in dates could contribute to the reported health benefits of this fruit by increasing its natural antioxidant potential. |
| Databáze: | OpenAIRE |
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