Bioactive Compound Recovery from Date Seed Valorization
Summary
Date seeds, a voluminous by-product of date fruit processing, have emerged as a rich reservoir of bioactive compounds including phenolic acids, flavonoids, tocopherols and essential fatty acids. Valorization strategies aim to transform this low-value waste into high-value extracts with antioxidant, anti-inflammatory and antimicrobial activities. Conventional solvent extraction has been complemented by green technologies such as natural deep eutectic solvents (NADES), ultrasound-assisted extraction (UAE) and carbon dioxide-based techniques to enhance yield, selectivity and environmental compatibility. Process optimisation using design-of-experiments approaches has refined parameters such as solvent composition, solid-to-solvent ratio and extraction time to maximise recovery of target compounds. Beyond extraction, refined date seed oil and phenolic-rich fractions are being formulated into functional food ingredients, cosmeceuticals and nutraceuticals, supporting a circular economy in arid-region agriculture and offering sustainable routes to novel health-promoting products.
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Bioactive Compound Recovery from Date Seed Valorization publication trend
The graph below shows the total number of articles in bioactive compound recovery from date seed valorization across all publications each year (not limited to Nature Index journals).
Technical terms
Bioactive compounds: Molecules such as phenolics, flavonoids and tocopherols that exert physiological effects beyond basic nutrition.
Phenolic compounds: Aromatic secondary metabolites characterised by one or more hydroxyl groups on an aromatic ring, known for antioxidant activity.
Natural deep eutectic solvents (NADES): Mixtures of natural hydrogen bond donors and acceptors used as green solvents to extract bioactive compounds.
Ultrasound-assisted extraction (UAE): Technique employing high-frequency acoustic waves to disrupt plant matrices and enhance mass transfer of solutes.
Supercritical fluid extraction (SFE): Method using CO2 above its critical temperature and pressure to solubilise and recover bioactives without organic solvents.
Subcritical CO2 extraction: Process utilising CO2 at conditions below its critical point, combining liquid and gas solvent properties for selective compound recovery.
References
- Utilization of natural deep eutectic solvents and ultrasound-assisted extraction as green extraction technique for the recovery of bioactive compounds from date palm (Phoenix dactylifera L.) seeds: An investigation into optimization of process parameters. Ultrasonics Sonochemistry (2022).
- Extraction and Evaluation of Bioactive Compounds from Date (Phoenix dactylifera) Seed Using Supercritical and Subcritical CO2 Techniques. Foods (2022).
- Biochemical Composition and Biological Activities of Date Palm (Phoenix dactylifera L.) Seeds: A Review. Biomolecules (2022).
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