Effects of the Ripening Stage on Phenolic Profile, Phytochemical Composition and Antioxidant Activity of Date Palm Fruit

2012 ◽  
Vol 60 (44) ◽  
pp. 10896-10902 ◽  
Author(s):  
El Arem Amira ◽  
Saafi Emna Behija ◽  
Mechri Beligh ◽  
Lahouar Lamia ◽  
Issaoui Manel ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Date Palm ◽  
Ripening Stage ◽  
Palm Fruit ◽  
Phenolic Profile ◽  
Phytochemical Composition

Phenolic profile and antioxidant activity of the Algerian ripe date palm fruit (Phoenix dactylifera)

2005 ◽  
Vol 89 (3) ◽  
pp. 411-420 ◽  
Author(s):  
Abdelhak Mansouri ◽  
Guendez Embarek ◽  
Eugene Kokkalou ◽  
Panagiotis Kefalas
Keyword(s):  
Antioxidant Activity ◽  
Date Palm ◽  
Phoenix Dactylifera ◽  
Palm Fruit ◽  
Phenolic Profile

Phenolic Profile and Antioxidant Activity of Date-Pits of Seven Algerian Date Palm Fruit Varieties

2013 ◽  
Vol 16 (5) ◽  
pp. 1037-1047 ◽  
Author(s):  
Riyadh Messaoudi ◽  
Souheila Abbeddou ◽  
Abdelhak Mansouri ◽  
Antony C. Calokerinos ◽  
Panagiotis Kefalas
Keyword(s):  
Antioxidant Activity ◽  
Date Palm ◽  
Palm Fruit ◽  
Phenolic Profile ◽  
Date Pits

scholarly journals Comparative Study of the Antioxidant Activity and Phytochemical Composition of Leaves Extract between Three Varieties of Date Palm Tree

2013 ◽  
Vol 14 ◽  
pp. 162-171
Author(s):  
Laouini Salah Eddine ◽  
Ladjel Segni ◽  
Ouahrani Mohamed Ridha
Keyword(s):  
Antioxidant Activity ◽  
Date Palm ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Point Of View ◽  
Palm Tree ◽  
Phytochemical Composition ◽  
Methanolic Extracts ◽  
The People ◽  
Antioxidant And Antimicrobial Activity

The date palm (Phoenyx dactylifera) consisted, for the people of southern Algeria, as tree of providence. Dates and their extracts are also used for many centuries as a medicine against allergy, inflammation, constipation and gastro-protective; they also have a high antibacterial and antioxidant activity. However, no studies are conducted to evaluate the extract from the leaves of date palm (Phoenyx dactylifera) in point of view of phytochemical composition, antimicrobial and the antioxidant activity. In this study, we have determined the phenolic compounds, antioxidant and antimicrobial activity of methanolic extracts from three varieties of leaves tree. According to the results the leaves extracts have very important values for polyphenols (215.24 to 156.46 mg GAE/gDW) and high antioxidant activity (324. 45 to 206.21 mg GAE/gDW), Diphenyl-1 picrylhydrazyl radical-scavenging activity (IC50 = 2.98 to 4.83 μg/ml); also the three extracts reveal a considerable antimicrobial potency and antifungal considerable activity, the diameter of inhibition is 35.2 to 39.5 mm (concentration 50 mg/ml) for Candida albicans ATCC 90026.

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

Processes ◽  
2019 ◽  
Vol 7 (9) ◽  
pp. 585 ◽  
Author(s):  
Azhari Siddeeg ◽  
Muhammad Faisal Manzoor ◽  
Muhammad Haseeb Ahmad ◽  
Nazir Ahmad ◽  
Zahoor Ahmed ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Electric Field ◽  
Physicochemical Properties ◽  
Date Palm ◽  
Positive Impact ◽  
Total Content ◽  
Pulsed Electric Field ◽  
Volatile Components ◽  
Palm Fruit ◽  
Ethanolic Extraction

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.

scholarly journals Sugar profile, volatile compounds, composition and antioxidant activity of Sukkari date palm fruit

2018 ◽  
Vol 56 (2) ◽  
pp. 754-762 ◽  
Author(s):  
Azhari Siddeeg ◽  
Xin-An Zeng ◽  
Al-Farga Ammar ◽  
Zhong Han
Keyword(s):  
Antioxidant Activity ◽  
Volatile Compounds ◽  
Date Palm ◽  
Palm Fruit ◽  
Sugar Profile

Phenolic profile and antioxidant activity of buckwheat (Fagopyrum esculentum) herb and root extracts

Planta Medica ◽  
2012 ◽  
Vol 78 (11) ◽  
Author(s):  
D Orcic ◽  
E Svirčev ◽  
N Mimica-Dukic ◽  
I Beara ◽  
K Balog ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Fagopyrum Esculentum ◽  
Phenolic Profile ◽  
Root Extracts

Emergence of New Potential Insect Pests of Date Palm: Could Climate Change Be the Reason?

2019 ◽  
Vol 30 (6) ◽  
pp. 242-245
Author(s):  
Hamadttu A. F. El-Shafie
Keyword(s):  
Climate Change ◽  
Date Palm ◽  
Insect Pests ◽  
Anthropogenic Activities ◽  
Economic Damage ◽  
South American ◽  
Palm Fruit ◽  
The Family ◽  
American Palm ◽  
Sorghum Chafer

Four insect species were reported as new potential pests of date palm in recent years. They are sorghum chafer (Pachnoda interrupta), the rose chafer (Potosia opaca), the sericine chafer beetle (Maladera insanablis), and the South American palm borer (Pysandisia archon). The first three species belong to the order Coleoptera and the family Scarabaeidae, while the fourth species is a lepidopteran of the family Castniidae. The injury as well as the economic damage caused by the four species on date palm need to be quantified. Due to climate change and anthropogenic activities, the date palm pest complex is expected to change in the future. To the author's knowledge, this article provides the first report of sorghum chafer as a pest damaging date palm fruit.

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