Nutritional and Functional Properties of Date Palm Fruits
Summary
Date palm fruits are a calorically dense staple in arid and semi-arid regions, characterised by high levels of simple sugars, dietary fibre, essential minerals and a spectrum of bioactive compounds. Their macronutrient profile typically comprises 70–80 % carbohydrates, predominantly glucose and fructose, alongside moderate protein and low fat. Micronutrients include potassium, magnesium, iron and B-group vitamins, contributing to electrolyte balance and enzymatic functions. Functionally, date fruits are rich in polyphenols and flavonoids, conferring antioxidant, anti-inflammatory and antimicrobial activities. Dietary fibre and resistant starch in dates support gut health through prebiotic effects, promoting beneficial microbiota and short-chain fatty acid production. Variability in phytochemical content is influenced by cultivar, ripening stage and post-harvest handling. Beyond direct consumption, date processing generates by-products with potential for nutraceutical, pharmaceutical and industrial applications, aligning with sustainability and waste-valorisation strategies.
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Nutritional and Functional Properties of Date Palm Fruits publication trend
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Technical terms
Polyphenols: A diverse class of plant secondary metabolites with multiple phenolic rings, known for antioxidant activity.
Flavonoids: A subclass of polyphenols characterised by a 15-carbon skeleton, contributing to pigmentation and free-radical scavenging.
Antioxidant capacity: The ability of a compound or extract to neutralise reactive oxygen species and prevent oxidative damage.
Dietary fibre: Indigestible plant carbohydrates that promote gut motility and support fermentation by intestinal microbiota.
Prebiotic: A substrate selectively utilised by host microorganisms, conferring a health benefit through modulation of the gut microbiome.
References
- Comparison of phenolic composition in Australian-grown date fruit (Phoenix dactylifera L.) seeds from different varieties and ripening stages. Food Research International (2024).
- The impact of date palm fruits and their component polyphenols, on gut microbial ecology, bacterial metabolites and colon cancer cell proliferation. Journal of Nutritional Science (2014).
- Date fruit processing waste and approaches to its valorization: A review. Bioresource Technology (2021).
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