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

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:...

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Bibliographic Details
Published in:Processes 2019-09, Vol.7 (9), p.585
Main Authors: Siddeeg, Azhari, Faisal Manzoor, Muhammad, Haseeb Ahmad, Muhammad, Ahmad, Nazir, Ahmed, Zahoor, Kashif Iqbal Khan, Muhammad, Aslam Maan, Abid, Mahr-Un-Nisa, Zeng, Xin-An, Ammar, Al-Farga
Format: Article
Language:English
Subjects:
Acidity
Anthocyanins
Antioxidants
Bioactive compounds
Biological activity
Carotenoids
Electric field strength
Electric fields
Electrical conductivity
Electrical resistivity
Ethanol
Flavonoids
Food products
Fruits
Physicochemical properties
Potassium
Solvent extraction
Solvents
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Summary: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.
ISSN:2227-9717
2227-9717
DOI:10.3390/pr7090585