Phytochemicals in date co-products and their antioxidant activity

Martín-Sánchez, Ana María; Cherif, Sarra; Ben-Abda, Jamel; Barber-Vallés, Xavier; Pérez‐Álvarez, José Angel; Sayas‐Barberá, Estrella

doi:10.1016/j.foodchem.2014.02.172

Cited by 61 publications

(56 citation statements)

References 33 publications

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“…The low rates were chosen since the availability of unused biomass in farming systems such as in Oman is very limited. Hitherto neglected biomass of date palm branches, date kernels and immature, not marketable dates may provide a resource which could be tested for charcoal/biomass production and/or as tannin‐rich compost ingredients in these systems ( Sait et al, 2012; Martín‐Sánchez et al, 2014). However, the amount of activated charcoal tested in our experiment may not have reached the threshold above which the C and N cycling is significantly affected.…”

Section: Discussionmentioning

confidence: 99%

Effects of activated charcoal and tannin added to compost and to soil on carbon dioxide, nitrous oxide and ammonia volatilization

Jordan

Předotová

Ingold

et al. 2015

J. Plant Nutr. Soil Sci.

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Given high mineralization rates of soil organic matter addition of organic fertilizers such as compost and manure is a particularly important component of soil fertility management under irrigated subtropical conditions as in Oman. However, such applications are often accompanied by high leaching and volatilization losses of N. Two experiments were therefore conducted to quantify the effects of additions of activated charcoal and tannin either to compost in the field or directly to the soil. In the compost experiment, activated charcoal and tannins were added to compost made from goat manure and plant material at a rate of either 0.5 t activated charcoal ha -1 , 0.8 t tannin extract ha -1 , or 0.6 t activated charcoal and tannin ha -1 in a mixed application. Subsequently, emissions of CO 2 , N 2 O, and NH 3 volatilization were determined for 69 d of composting. The results were verified in a 20-d soil incubation experiment in which C and N emissions from a soil amended with goat manure (equivalent to 135 kg N ha -1 ) and additional amendments of either 3 t activated charcoal ha -1 , or 2 t tannin extract ha -1 , or the sum of both additives were determined. While activated charcoal failed to affect the measured parameters, both experiments showed that peaks of gaseous CO 2 and N emission were reduced and/or occurred at different times when tannin was applied to compost and soil. Application of tannins to compost reduced cumulative gaseous C emissions by 40% and of N by 36% compared with the non-amended compost. Tannins applied directly to the soil reduced emission of N 2 O by 17% and volatilization of NH 3 by 51% compared to the control. However, emissions of all gases increased in compost amended with activated charcoal, and the organic C concentration of the activated charcoal amended soil increased significantly compared to the control. Based on these results, tannins appear to be a promising amendment to reduce gaseous emissions from composts, particularly under subtropical conditions.

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Section: Discussionmentioning

confidence: 99%

Effects of activated charcoal and tannin added to compost and to soil on carbon dioxide, nitrous oxide and ammonia volatilization

Jordan

Předotová

Ingold

et al. 2015

J. Plant Nutr. Soil Sci.

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“…Many of biologically active constituents of medicinal, commercial and poisonous plants are classified as secondary metabolites. Date fruit is rich in phytochemicals such as carotenoids, polyphenols (e.g., phenolic acids, isoflavons, lignans, and flavonoids), tannins, and sterols (Martín-Sánchez et al, 2014). The concentration and composition of these constituents are widely varied depending on several parameters, including date variety, stage of fruit picking, storage, postharvest processing, the geographical origin of the dates and soil conditions (Al-Laith, 2009; Amorós et al, 2009; Al-Turki et al, 2010).…”

Section: Phytochemicals In Date Palm Fruitsmentioning

confidence: 99%

“…They also reported destruction of total carotenoids after sun drying of date fruit ranged between 4 and 30% (Al-Farsi et al, 2005a). Dried date fruit is a moderate source of carotenoid (0.97 mg/100 g) compared to other dried fruits, e.g., figs and apricot: 0.032 mg/100 g and: 2.20 mg/100 g respectively (Martín-Sánchez et al, 2014). …”

Section: Phytochemicals In Date Palm Fruitsmentioning

confidence: 99%

Date Palm Tree (Phoenix dactylifera L.): Natural Products and Therapeutic Options

et al. 2017

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Many plants, including some of the commonly consumed herbs and spices in our daily food, can be safely and effectively used to prevent and/or treat some health concerns. For example, caffeine the active ingredient found in coffee beans (Coffea), shows biological activity in the treatment of the central nervous system (CNS) disorders, indole-3-carbinol, and 3,3′-diindolylmethane are both broccoli (Brassica oleracea) derived phytochemicals with potential anti-cancer activity, and resveratrol, isolated from grape (Vitis vinifera), is reported to extend lifespan and provide cardio-neuro-protective, anti-diabetic, and anti-cancer effects. Date palm fruits possess high nutritional and therapeutic value with significant antioxidant, antibacterial, antifungal, and anti-proliferative properties. This review focuses on the date fruit extracts and their benefits in individual health promoting conditions and highlights their applications as useful to the pharmaceutical and nutraceutical industries in the development of natural compound-based industrial products.

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“…Wide range of minerals, vitamins, and vital rich phytochemical constituents profile makes dates an effective candidate for diseases such as cancer, diabetes, and cardiovascular diseases [15]. Date fruit is reported to contain carotenoids, polyphenols, tannins, and sterols [16]. Arguably, date fruit contains the highest concentration of polyphenols among the dry fruits, predominantly due to greater sunlight exposure [17].…”

Section: Introductionmentioning

confidence: 99%

Phoenix dactyliferaProtects against Doxorubicin-Induced Cardiotoxicity and Nephrotoxicity

Wang

Chao

Ahmad

et al. 2019

Cardiology Research and Practice

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Doxorubicin (DOX) is an important anticancer drug used widely in the treatment of leukemia and lymphoma. The suitability of DOX is enhanced by its high therapeutic index, but its potential to cause cardiotoxicity and nephrotoxicity remains a prime concern in anticancer therapeutics. This study is designed to determine the effect of Phoenix dactylifera extract (PDE) on DOX-induced cardiotoxicity and nephrotoxicity. Experimental rats were divided into four groups, receiving normal saline 4 ml/kg, DOX alone, and crude extract of PDE at doses of 1 g/kg and 1.5 g/kg in the presence of DOX, respectively, for 21 days. Cardiac enzymes and serum and urinary sodium and potassium levels were evaluated which were analyzed statistically by using one-way ANOVA. Subsequently, DOX initiated changes in the level of cardiac markers CK-MB, LDH, and troponin I, which were notably reversed by PDE. PDE was also effective against serum and urinary sodium and urinary potassium and protected against DOX-induced nephrotoxicity. Groups treated with different doses of PDE showed marked decrease in levels of cardiac and renal markers. The study concluded that the PDE extract possesses protective effects against DOX-induced cardiotoxicity and nephrotoxicity.

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Phytochemicals in date co-products and their antioxidant activity

Cited by 61 publications

References 33 publications

Effects of activated charcoal and tannin added to compost and to soil on carbon dioxide, nitrous oxide and ammonia volatilization

Effects of activated charcoal and tannin added to compost and to soil on carbon dioxide, nitrous oxide and ammonia volatilization

Date Palm Tree (Phoenix dactylifera L.): Natural Products and Therapeutic Options

Phoenix dactyliferaProtects against Doxorubicin-Induced Cardiotoxicity and Nephrotoxicity

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