Date Seeds Research Articles

The effect of using activated dates seed on Hot Mix Asphalt performance

The increasing demand for construction materials and the need to improve the performance of asphalt mixes have led to the depletion of available resources of aggregates. Lots of aggregate alternatives had been studied to partially or fully replace aggregate in asphalt concrete mixes. Indeed, date seeds are found easily in Kuwait. Their properties; such as light weight, very low crushing strength, and low impact value; represent a potential domain to enhance asphalt mix performance. The main objective of this paper is investigating the possibility of using activated date seeds additives in Hot Mix Asphalt (HMA) as a partial replacement of Fine Aggregates (sand). A total of 3 asphalt concrete mixes with different percentages by weight were prepared. Physical and mechanical properties of date seeds and Fine Aggregates (sand) were determined and compared in the asphalt concrete mix design of ratios 7, 10, and 15%. Compressive Strength and Marshall Stability tests were performed to investigate the effect of activated date seeds additives on HMA. Eventually, the findings indicated that the ratio of 10% gave the highest Marshall Stability. On the other hand, the ratio of 7% found to give the highest retained strength index. a deeper statistical analysis is performed to evaluate the robustness and significance of studied factors on response variables represented in Marshal Stability and Flow. The first part of the analysis included recognizing data outliers in data sets and eliminating them to compare basic statistical values with raw data. The minor differences in these values implies minor variability in the measurement and indicates minimal experimental error. T-test analysis was performed to study the influence of date seed percentages on different performed measurements. ANOVA tests were also represented to demonstrate the statistical significance factors on considered response variables. The results supported the significant influence of the included measurements on Marshal stability and flow values.

Subcritical water extraction of phenolics, antioxidants and dietary fibres from waste date pits

The growing demand for dates, as food, has enhanced its production and increased the total amount of date pits waste. Subcritical water extraction (SCWE) can be used to effectively extract valuable products from date pits. This study was to extract phenolic compounds, total flavonoid content, antioxidants, and dietary fibres from the date seeds using SCWE. The effects of process variables such as feed mixture concentration (x), extraction temperature (T), and extraction time (t) on the yields of total phenolic content (TPC), total flavonoid content (TFC), antioxidants, and dietary fibres were investigated for process optimisation using desirability approach. The results showed that extraction temperature could significantly increase TPC, TFC, and dietary fibres extraction yields, but has less effect on the antioxidant extraction. The feed mixture concentration has shown a significant effect on antioxidant extraction but was insignificant on TPC, TFC, and dietary fibres extractions. The desirability approach of process optimisation validated the feasibility of using SCWE for valuable products extraction from date pits.

Morphology characterization and chemical composition of United Arab Emirates date seeds and their potential for energy production

The seeds of a local date palm cultivar from the United Arab Emirates, Allig, were characterized in this study. Soxhlet, Folch, and CO2 supercritical extraction were employed to obtain oil from Allig date seed (DS) powder composed of 0.1–0.3 mm particles, yielding oil extraction yield percentages of 10.2%, 9.5%, and 9.8%, respectively. The main fatty acid in the extracted oil was saturated stearic acid, comprising 47.9% of the total fatty acid content. After oil extraction, the total metal content in the DSs dropped from 3.2% to 2.8%, suggesting that some metals were extracted with the oil. On the other hand, the average heating value of the DSs increased from 28.55 ± 1.84 to 29.63 ± 1.28 MJ/kg after oil extraction. The average percentages of dehydration moisture, devitalization protein and carbohydrates, devitalization lipids, and solid decomposition in the DSs before oil extraction were 1–2%, 50–55%, 10–15%, and 30–35%, respectively, whereas those for the DSs after oil extraction were 20–25%, 35–30%, 0%, and 35–40%, respectively. As expected, the lipid content dropped after oil extraction. The heat of combustion and extracted oil results indicate that palm DSs, with their relatively high energy densities, have potential as a source of energy, among other notable organic products.

Évaluation de l'activité antioxydante et antibactérienne de l’extrait de graines de Palmier Dattier (Phoenix dactylifera L.): Perspective de développement de nouveaux aliments

Background: Conventional food additives were associated with potential harm. Palm seeds are an interesting source of high-added value bioactive compounds, regarding their potential use in food industries. Aim: Date seeds extract (DSE) of Algerian Phoenix dactyliefra L. was studied for its phytochemical, antioxidant, and antibacterial activity and to identify its potential uses in foods. Material and methods: A total soluble solid of DSE (°Brix) was determined by refractometry. The total phenolic contents (TPCs) were determined according to the Folin-Cioclateu method and the total flavonoid and flavonols were also estimated with the colorimetric method. The DPPH method was used to determine the antioxidant activity of DSE. The IC50 values were also calculated and the antioxidant activity index (AAI) was determined. The agar well diffusion method was employed for the antibacterial activity of the aqueous DSE against various pathogens. Results: Moisture, ash, and fat contents (%) determined were 11.06, 1.33, and 7.06, respectively. The physicochemical analysis of the extract showed a pH value of 4.67, titratable acidity value of 0.64 citric acid/100 g, °Brix value = 3%, sugars values of 0.12, 0.47, and 0.35 g/L for reducing sugar, total sugar, and sucrose, respectively. The determination of phenolic compounds was carried out on three groups, namely total phenols = 229.67 mg GAEq/g, flavonoids = 201.12 mg QEq/g, and flavonols = 173.03 mg QEq/g, respectively. The DSE demonstrates to be effective as an antioxidant “in vitro” and showed a strong antibacterial activity with different inhibition levels, depending on the bacterial strains. Conclusion: The current investigations present knowledge about the possible role of palm industry by-products as a novel perspective for the development of new foods. We suggest that date seeds can be exploited in some food applications utilizing their high levels of bioactive molecules. Keywords: Phoenix dactylifera L., Degla-Baïda, seeds extract, bioactive molecules, biological activity, in vitro, novel perspective.

Biosynthesis of silver nanoparticles using the extracts of palm date seeds (phoenix dactylifera L.) and its application in increasing the anti-inflammatory effect of piroxicam drug

A simple, cost-effective and eco-friendly synthesis technique of silver nanoparticles (AgNPs) using the extracts of palm date seeds (DS) and their applicability in the biomedical field have been developed. Palm date seeds (DS) were used as reducing and stabilising agents in the synthesis of silver nanoparticles (AgNPs). Different preparation techniques have been tested for the green-synthesis of AgNPs using DS extracted by different solvent media at different conditions. The solvents used were water, boiling water, acidic media, alkaline media, methanol and ethanol. The formation of AgNPs was confirmed using surface plasmon resonance band (SPR) at λ = 450 nm. Water and alkaline DS extracts have given high absorbance of well-defined SPR band. On contrary, acidic extracts have given random SPR with weak absorbance. DS extracts obtained using boiling water have shown small and broad absorbance of SPR band. It was found that the formation of AgNPs in water was more efficient than in methanol and ethanol. AgNPs were characterised by TEM. In addition, AgNPs have been used as a carrier for piroxicam anti-inflammatory drug and were characterised using FTIR. The anti-inflammatory effect of piroxicam-loaded AgNPs has been studied using the inhibition of albumin denaturation and has shown a considerable increase in protein denaturation inhibition (34.1% I) if compared to the standard piroxicam’s 19.9% inhibition.

Efficient Removal of Ni(II) from Aqueous Solution by Date Seeds Powder Biosorbent: Adsorption Kinetics, Isotherm and Thermodynamics

Adsorption investigations in batch approaches were performed to explore the biosorption of Ni(II) ions from aqueous solutions on date seeds powder. The effects of pH, particle size, initial concentration of Ni(II) ions, adsorbent mass, temperature, and contact on the adsorption efficacy were studied. The maximum removal obtained was 90% for an original Ni(II) ion solution concentration of 50 ppm was attained at pH 7 after 30 min and with 0.30 g of an added adsorbent. The four adsorption models, namely Freundlich, Langmuir, Dubinin–Radushkevich (D–R), and Temkin were examined to fit the experimental findings. The adsorption system obeys the Freundlich model. The system was found to follow the pseudo-second order kinetic model. Thermodynamic factors; entropy (ΔS°), enthalpy (ΔH°), and Gibbs free energy (ΔG°) changes were also assessed. Results proved that adsorption of Ni(II) ions is exothermic and spontaneous. Sticking probability value was found to be less than unity, concluding that the process is dominated by physical adsorption.

Anaerobic digestion of waste Tunisian date (Phoenix dactylifera L.): effect of biochemical composition of pulp and seeds from six varieties

ABSTRACT Large amounts of secondary date waste (pulp and seeds) are produced and discarded in Tunisia without proper valorisation methods. To study the possibility of valorising different varieties of Tunisian date waste (pulp and seeds) via anaerobic digestion, batch biochemical methane potential (BMP) tests were carried out under mesophilic temperature. The bio-methane production curves were fitted to the model of modified Gompertz in search of the kinetic parameters. The bio-chemical characterisation of the substrates from different varieties (total and volatile solids, COD and contents in carbohydrates, proteins, lipids, polyphenols) was realised. Principal component analysis (PCA) was used to investigate the correlations between the model parameters and biochemical variables. Results show that the biochemical compositions of date pulp and seeds strongly depend on the varieties. The BMP are in the range of 0.295–0.345 and 0.267–0.327 Nm3 CH4·kg COD−1 for pulp and seeds respectively, resulting from the significant biochemical variance among the varieties. The BMP of date seeds was significantly correlated with their VS/TS ratio, carbohydrate and protein contents (p < 0.05). For the pulp, significant correlation was found between BMP, carbohydrate and lipid contents. PCA shows that certain varieties (like pulp and seeds of Deglet Nour and seeds of Bejou) are most suitable for being valorised by anaerobic digestion. The most suitable date varieties for this innovative approach were revealed. This research provided useful knowledge for bioconversion of waste date pulp and seeds to biomass energy.

Possible mechanisms for the renoprotective effects of date palm fruits and seeds extracts against renal ischemia/reperfusion injury in rats

PurposeThis work investigates the possible renoprotective effects of date palm fruits and seeds extract against renal ischemia and their underlying mechanisms. Methods108-Sprague Dawle male rats were randomly allocated into 6 equal groups differently receiving aqueous or methanolic fruit and seed extracts. Assay of serum creatinine, BUN and TNF-α, morphological examination of the left kidney, markers of the redox state (MDA, CAT, and GSH), the expression of TNFα and Nrf2 genes at the level of mRNA, the expression of caspase-3 and TGF-β proteins by immunohistochemistry were performed. Results45-min renal I/R caused significant deterioration of kidney functions (increase in serum creatinine and BUN) and morphology (P < 0.001) and significant reduction in CAT activity and GSH levels with significant increase in serum TNF-α and MDA concentration and the expression of Nrf2, caspase-3, TNF-α, and TGF-β in kidney tissues. Pre-treatment with either date palm fruit or seed extracts significantly improved kidney functions and morphology (P ≤ 0.001) with a significant increase in the expression of Nrf2 and CAT activity, and GSH concentration and a reduction in serum TNF-α and expression of caspase-3, TNF-α, and TGF-β (P < 0.001). ConclusionsAdministration of date palm extracts exhibited a renoprotective effect against renal I/R injury.This renoprotective action might be due to their antioxidants, anti-apoptotic and anti-inflammatory actions. Moreover, aqueous fruit extracts offered powerful renoprotective effect than aqueous seed extracts, and aqueous fruit and seed extracts were generally more effective than methanolic extracts.

Effect of Date Varieties on Chemical Properties, Fatty Acid Composition and Amino Acid Contents of Date (Phoenix dactylifera L.) Seed and Oils

The chemical properties, fatty acid composition, and amino acid contents of the date (Phoenix dactylifera L.) fruit seeds (Barhi, Khulas, Monaif Rozaiz, Soukari, Soulag, and Soughi) were determined. While crude protein contents of date samples range from 5.70% (Soulag) to 7.59% (Bahri) (p <0.05), oil contents of seed samples changed between 3.66% (Khulas) and 7.87% (Soulag). Glucose contents ranged from 0.69% (Bahri) to 2.31% (Soughi). Glutamic acid contents of samples ranged from 0.81% (Rozaiz) to 1.20 %(Bahri)(p <0.05). Myristic acid contents of seed oils changed between 11.79% (Khulas) and 15.13% (Soughi). In addition, palmitic acid contents of oils ranged from 8.13% (Monaif) to 10.63% (Rozaiz). While oleic acid contents of date seed oils vary between 32.84% (Monaif) and 43.51% (Khulas) (p <0.05), lauric acid contents of oil samples ranged from 20,0 % (Rozaiz) to 32.83% (Monaif). Future studies will be conducted on phenolic and bioactive compounds of date seeds.

Synthesis and characterization of activated carbon from biomass date seeds for carbon dioxide adsorption

Abstract In this study, activated carbons were synthesized from seeds of local date fruits in the United Arab Emirates (UAE) and investigated for carbon dioxide (CO2) adsorption. Activated carbon (AC) synthesis was completed by furnace activation in the temperature range (600, 700, 800, 900 °C) after infusion with chemical compounds. Two reagents (Potassium Hydroxide- KOH and Sulfuric acid- H2SO4) were mixed with the date seed samples in varying impregnation ratios (KOH- 3:1, 4:1, 5:1 and H2SO4- 0.5:1, 1:1, 2:1) and directly heated to activation wherein the removal of volatile matter content leads to formation of AC porous structure. The AC yield was found to be inversely proportional to the activating temperature and impregnating ratio. Characterization tests carried out include elemental analysis, nitrogen sorption isotherms to assess surface area and micropore volumes, and Fourier transform infrared spectra to identify structural changes in surface functional groups. Adsorption tests were conducted via a micro- reaction calorimeter using pure CO2 stream at atmospheric pressures and temperatures (20, 30, 40 °C). The sulfuric acid activated carbons showed better capture capability in the range 40–80 mgCO2/gAC while KOH- samples had low CO2 uptakes (

Anti-inflammatory activity of date palm seed by downregulating interleukin-1β, TGF-β, cyclooxygenase-1 and -2: A study among middle age women

The prevalence of degenerative diseases increases with age. Furthermore, various factors tend to trigger cells injury, thereby, causing inflammation. This study, therefore, aims to examine the anti-inflammatory mechanisms of steeping date seeds in middle age women. This is a quasi-experimental design with a pre- and post-test approach used to evaluate the anti-inflammatory effect of 2.5 g of steeped of date palm seed, consumed by 30 healthy middle-aged women per day (in 250 mL water) for 14 days. The final numbers (22 subjects) of recruited women were included in the statistical analysis. Their level of IL-1β, TGF-β, IL-6, TNF-α, IL-12, COX-1, COX-2, and PGE2 were determined using ELISA. The results showed that the expression of IL-1β, TGF-β, COX-1, and COX-2 in women significantly decreased after consuming date palm seed. Steeped of date seed acts as an anti-inflammatory by downregulating the expression of key proinflammatory mediators.

Pyrolysis of different date palm industrial wastes into high-quality bio-oils: A comparative study

This paper presents a detailed assessment on the yield and quality of bio-oil produced from the fast pyrolysis process of date seeds and date syrup industrial waste. Pyrolysis experiments were conducted at a temperature of 500 °C for 30 min using a laboratory-scale semi-batch reactor equipped with an inline condensing system to separate the oil fraction from the non-condensable pyrolysis gases. The physical and chemical properties of the condensed bio-oil from date seeds and syrup waste feedstocks are analyzed and compared. Results showed that the pyrolytic oil obtained from date seeds possessed relatively higher kinematic viscosity (1.42 × 10−3 kg/m s) and high heating value (29.06 × 106 J/kg) than syrup waste bio-oil (1.31 × 10−3 kg/m s and 19.29 × 106 J/kg). Gas chromatography mass–spectroscopy (GC–MS) analysis of bio-oil obtained from date seeds and syrup waste primarily contained 2-furanmethanol (21.03%) and 2-fluoroformyl-3,3,4,4-tetrafluoro-1,2-oxazetidine (31.04%) with other valuable components, respectively. The pyrolytic oil of date seeds and syrup waste could be further refined and employed as building blocks for several value-added products in biofuel production and pharmaceutical/flavoring agents. Thus, the present study provides new functionality for the date palm industry to convert the waste products into valuable commodities.

Preliminary Study for the Clean Up of Hydrocarbon contaminated Soil Using Soil Washing Mechanism

Major oil spills and soil contaminations attracts the attention of its great effects on the Environment elements water, soil and air important part of the spill is to reduce the risk of oil spills, time and effort is highly appreciated in clean up procedures. In march 10 1991 more than 700 oil wells have been damage by Iraqi troops in Kuwait,71,428,571 tons of oil expelled on land and sea of Kuwait .low cost of cleanup contaminated Raduhtain oil field soil was implemented the authors introduced and used washing the contaminated soil by date seeds technique. This work deals with the treatment of oil-contaminated soil, by using different concentration of date seeds. Soil washing is one of the sustainable technologies at present to remove oil from soil. From lab test, it seems to be an excellent way to treat contaminated soil. Samples of soil and wastewater were taken and analyzed in order to evaluate TOC concentration and removal value. The original TOC values of control water samples in (day 1st, day 3rd and day 5th) are (319925, 319896, 319680, µg/g) respectively. The experiment with 50g date seeds in (day 1, day 3 and day 5) shows the result are (275285.7, 98714.29, 91642.8, µg/g) respectively. Whereas with 100 g date seed with 100g in (day1, day 3, day 5) the TOC concentration is (289428.57, 249642.9, 71714.29, µg/g) respectively.

Palm date (Phoenix dactylifera) seeds: A rich source of antioxidant and antibacterial activities

Two varieties of palm date seeds (PDS), Sukkari and Khalas, were examined for their antioxidant and antibacterial activities. Total phenol content was 2 014.37 ± 212.05 and 2 060.40 ± 176.0 mg GAE 100 g–1 dry weight (DW); and total flavonoid content was 83.98 ± 1.10 and 94.97 ± 1.36 mg QE 100 g–1 DW for Sukkari and Khalas, respectively. PDS extracts showed potential scavenging activity against ABTS, DDPH, and hydroxyl radical; the calculated IC50s were 431.17 ± 12.45, 400 ± 10.87 and 680 ± 18.12 µg for Sukkari, and 476 ± 20.25, 302.24 ± 14.08 and 284.18 ± 11.62 µg for Khalas, respectively. PDS extracts did not show potential activity against superoxide anion. Both extracts showed a high percentage of reducing power as the calculated FRAP (ferric reducing antioxidant power) concentrations were 12.66 ± 1.08 and 16.14 ± 1.94 mmol ascorbic acid equivalent 100 g–1 for Sukkari and Khalas, respectively. Bacillus subtilis showed a remarkable sensitivity to PDS extracts; the inhibition zones were 21 ± 0.82 and 22 ± 0.67 mm for Sukkari and Khalas, respectively. PDS extracts possess good antioxidant and antibacterial activity, and therefore PDS could be effectively used as a natural source of antioxidants and to be detected against gram-positive bacteria.

Heterogeneous carbon-based catalyst modified by alkaline earth metal oxides for biodiesel production: Parametric and kinetic study

• Synthesis of dual nature catalyst with both acidic and basic active sites. • Parametric and kinetic studies for biodiesel production using dual nature catalyst. • Feasible catalyst for biodiesel regardless oil source. • Biodiesel with potential fuel properties. This study reports the synthesis of dual-functional heterogeneous catalyst for valorizing the plant-based oils to produce biodiesel as a cleaner fuel to conserve the environment and meet the current energy demand. Pristine carbon as a support for the catalyst is produced from waste date seeds powder before oil extraction and modified with alkaline earth metal oxides to utilize it for transesterification to produce biodiesel. The synthesized catalyst before usage is characterized by several techniques which include XRD, SEM, EDS, BET and TPD. The catalyst characterization revealed its suitability for transesterification reaction and the process is optimized while the synthesized catalyst is used for the reaction. The optimized yield of biodiesel is 94.27 wt% when the set parameters of a temperature of 65 °C, time 90 min, methanol to oil molar ratio of 15 and catalyst loading of 4 wt%. To commercialize the catalyst, the efficiency was evaluated using oils from different sources to produce biodiesel. The kinetic study revealed that while using the synthesized heterogeneous catalyst for transesterification of non-edible oil to produce biodiesel it was not an energy-intensive process. Further on, the fuel properties were measured and compared to American ASTM and European EN standards which ensured that the produced biodiesel is of potential and that it can be commercialized. Thus, the study gave an overall complete scenario from an economical catalyst to efficient fuel production which can be advantageous in the society.

Chemical Identification of Some Toxic Residues Bioaccumulated in Date Palm Seeds (Phoenix dactylifera)

The dangers resulting in the consumption of contaminated elements found on date fruits or seeds products after exposure to pesticides and toxic chemicals are harmful to health. In the present study, the organic extract of date palm seeds was analyzed using gas chromatography coupling-mass spectrometry (GC/MS). The results obtained show a high concentration of fatty substances such as trans-oleic acid, the most abundant unsaturated fatty acid (18.67%) followed by monoenoic fatty acids, such as oleic acid methyl ester (8.87%). Secondary metabolites such as phenol, 2,6-di-tert-butyl-(4.97%), beta-ionone, methyl-(1.05%) and alkaloids such as elaeagnine (1.22%) were measured at low concentrations. Thirteen compounds belonging to linear hydrocarbons were found at a rate of 12.08%. The seeds were also exposed to pesticides such as diethyl parathion (9.84%) and toxic residues such as thiophene,3-butyl-,1,1-dioxide (0.51%) known to be toxic for human consumption.

Functional food and nutra-pharmaceutical perspectives of date (Phoenix dactylifera L.) fruit.

Date palm counts among the oldest fruit crops of the world and is mainly cultivated for its highly nutritious fruits consumed as a staple food in many countries, especially in the Gulf region. Dates are enriched with numerous therapeutic bioactives and functional compounds such as phenolics, flavonols, carotenoids, minerals, and vitamins that not only provide an appreciable amount of energy required for the human body but also act as an effective therapeutic agent against several diseases. This review aimed to provide a deep insight into the nutritional as well as phytochemicals profile of date fruit and its seeds in order to explore their biological (anti-cancer, anti-diabetic, cardio-protective, anti-inflammatory properties), functional food, and nutra-pharmaceutical attributes. PRACTICAL APPLICATIONS: This review provides updated information regarding the date fruits and seeds phytochemicals composition together with highlighting dates potential as a natural therapeutic agent against several diseases. The study also urges the importance of consuming dates as a great package to live a healthy life due to the functional food and nutraceutical properties of this valuable fruit. The study also provides information first time as recommending dates to cope with the hidden hunger or micronutrient deficiency faced by the third world inhabitants. Hence, the review may further help the industry and researchers to explore the potential of dates for future medicinal and nutra-pharmaceutical applications.

Kinetic Study of Lignocellulosic Biomasses Pyrolysis Using Thermogravimetric Analysis

In this work, a kinetic analysis was performed to investigate the energy potential of abundant agricultural residues: date residues, olive stones, and spent coffee grounds. The TGA experiments were carried out from room temperature to 700°C under an inert atmosphere at different heating rates of 5, 10, 15 and 20°C.min-1. Friedman’s method seems to be the most appropriate because it contains no mathematical approximation that reduces the systematic error. The average activation energies obtained with the Friedman model are 159, 168, 201, and 170 kJ.mol-1 for date stems, date seeds, olive stone, and spent coffee grounds, respectively.&#x0D; Keywords; agricultural residues, pyrolysis, TGA, model-free, activation energy

Effect of different activation agents on the pollution removal efficiency of date seed activated carbon: process optimization using response surface methodology

Activated carbons are currently one of the most widely used materials for water and wastewater treatment because of their high specific surface area and moderate cost. This study is about the comparison of different activation methods on the pollution removal efficiency of date seed activated carbon using response surface methodology (RSM). The date seeds were carbonized in a muffle furnace at 300 °C for 1 h to produce carbon. Then, the chemical activation was carried out using 1 N solution of H3PO4, HNO3, H2SO4 separately for 24 h. Activated carbons were ground in a grinder to convert it to powder form, and after that, it was sieved using 75 microns sieve. Physical properties like pore size and surface area were studied using scanning electron microscopy (SEM). Pollution removal studies were carried using the Jar test, and the experiments were designed using RSM. The results show that the maximum COD reduction of 98.58% was obtained when H2SO4 was used as an activation agent. The results show that the carbon activated by H2SO4 shows the highest removal than its counterparts. The optimum dose was optimized using RSM and found to be 300 mg/l, and the optimum reaction time was 10 min. By this set of conditions, 96.3% of COD removal could be achieved. The results are confirmed by SEM studies, which show a high surface area, more pores, and the presence of a high amount of carbon in the AC prepared using H2SO4.

Date Seeds: A Promising Source of Oil with Functional Properties.

The cultivation of the date palm (Phoenix dactylifera L.) is the main activity and source of livelihood for people from arid and semiarid regions of the world. Date production is increasing every year. In addition, pitted date exportation is rising and great amounts of date seeds are produced. This biomass represents a problem for manufacturing companies. At the moment, date seeds are normally discarded or used as animal feed ingredients. However, this co-product can be used for many other applications due to its valuable chemical composition. Oil is one of the most interesting components of the date seed. In fact, date seeds contain 5–13% oil. Date seed oil contains saturated and unsaturated fatty acids with lauric and oleic as the main ones, respectively. Tocopherols, tocotrienols, phytosterols, and phenolic compounds are also present in significant amounts. These phytochemicals confer added value to date seed oil, which could be used for many applications, such as food product formulations, cosmetics, and pharmaceuticals. This review provides up-to-date data on the different extraction techniques and the chemical composition of date seed oils. The applications of date seed oil have also been reviewed.