Nutritional Composition and in vitro Evaluation of the Antioxidant Properties of Various Dates Extracts (Phoenix dactylifera L.) from Libya

Hasan, Nawal S.; Amom, Zulkhairi; Nor, A. I.; Mokhtarrudin, Norhafizah; Esa, Norhaizan Mohd; Azlan, Azrina

doi:10.3923/ajcn.2010.208.214

Cited by 35 publications

(14 citation statements)

References 12 publications

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“…A higher radical scavenging activity in PEF treated extract was observed compared to the untreated extract; however, this was lower (p < 0.05) as compared to reference (vitamin C) at the same concentrations. The results are similar to the previous finding that PEF can increase free radical scavenging ability [43,44]. A significant increase was observed which can probably be due to improved extraction level of TCC, TPC, TAC and TFC as a result of cavitation processes after PEF treatment with different intensities.…”

Section: Total Carotenoids Contents (Tcc)supporting

confidence: 90%

Pulsed Electric Field-Assisted Ethanolic Extraction of Date Palm Fruits: Bioactive Compounds, Antioxidant Activity and Physicochemical Properties

et al. 2019

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The current study was aimed to observe the influence of pulsed electric field (PEF) on the extraction of bioactive components; antioxidant activity and physicochemical properties of date palm fruit extract (DPFE) as compared to the extract untreated by PEF. The fruit was treated with PEF (frequency: 10 Hz, time: 100 µs, pulses number: 30, electric field strength (EFS): 1, 2, and 3 kV/cm. The results show that PEF has a positive impact on the total content of carotenoids, anthocyanins, flavonoids, and phenolics by increasing the EFS. DPFE treated with PEF exhibit a strong antioxidant activity as compared to untreated extract, while electrical conductivity, pH values, and titratable acidity were not affected by PEF. The results indicate a notable increase in the volatile components in DPFE treated with PEF at 3 kV/cm. Thus, PEF treatment can assist the ethanolic extraction of DPFE to improve the bioactivity and antioxidative activity. These findings suggest that PEF can be a more suitable technique to enhance solvent extraction on a commercial basis.

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Section: Total Carotenoids Contents (Tcc)supporting

confidence: 90%

Pulsed Electric Field-Assisted Ethanolic Extraction of Date Palm Fruits: Bioactive Compounds, Antioxidant Activity and Physicochemical Properties

et al. 2019

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“…These facts could explain why the results vary depending on the method selected (e.g., depending on the different radicals); in fact, the results of the date palm tested in our study show higher antioxidant activity in some other assays and have obtained a medium activity in others. Other researchers evaluated antioxidant activity in dates extracts by different methods ABTS, FRAP and DPPH and also observed in a good antioxidant activity, accordingly to the present results [41,44]. In conclusion, our results suggest that date palm may serve as a good source of natural antioxidants.…”

Section: Samplessupporting

confidence: 87%

Effect of dietary supplementation of probiotics and palm fruits extracts on the antioxidant enzyme gene expression in the mucosae of gilthead seabream (Sparus aurata L.)

Esteban

Cordero

Martínez‐Tomé

et al. 2014

Fish & Shellfish Immunology

108

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“…They are also a carbohydrate food 1,2 and may affect blood sugar levels. It is important to optimize their consumption in quantity and quality.…”

Section: Introductionmentioning

confidence: 99%

Effect of Algerian Varieties Dates on Glycemic, Arterial Blood Pressure and Satiety Responses

Freha

Mihoub

Meriem

et al. 2016

AJPRHC

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The purpose of our study is to determine the Glycemic Indexes (GIs) of three Algerians varieties of dates in healthy subjects evaluate the satiety and effect on arterial pressure after their consumption. We have first documented the chemical composition of the dates. 10 healthy subjects consumed the dates (carbohydrates content of 50 g) in order to determine the GIs. The responses of glycaemia were monitored during two hours after the dates taking and compared to the reference glucose. In a randomized trial, 20 healthy adults consumed the dates after 12h of fast. We reported the level of satiety on a Visual Analog Scale for 2h further to the ingestion of the dates. Furthermore, 28 normotensives and 45 hypertensive individuals ingested the three varieties in randomized order during 21 days to assess their impact on the Pressure Arterial Systolic (PAS) and Pressure Arterial Diastolic (PAD). We noted significant differences (p<0.05) for the different fractions of sugars, soluble fibers, polyphenols, K + , Mg 2+. The low GIs are denoted among 44.31-52.35, deducting a moderate impact on blood glucose level. The dates reduced hunger and increased satiety. Our varieties studied following their ingestion induced a significant hypotensive activity (p<0.05) on the PAS and, PAD from hypertensive subjects.

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Nutritional Composition and in vitro Evaluation of the Antioxidant Properties of Various Dates Extracts (Phoenix dactylifera L.) from Libya

Cited by 35 publications

References 12 publications

Pulsed Electric Field-Assisted Ethanolic Extraction of Date Palm Fruits: Bioactive Compounds, Antioxidant Activity and Physicochemical Properties

Pulsed Electric Field-Assisted Ethanolic Extraction of Date Palm Fruits: Bioactive Compounds, Antioxidant Activity and Physicochemical Properties

Effect of dietary supplementation of probiotics and palm fruits extracts on the antioxidant enzyme gene expression in the mucosae of gilthead seabream (Sparus aurata L.)

Effect of Algerian Varieties Dates on Glycemic, Arterial Blood Pressure and Satiety Responses

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