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Effect of Ultrasonic Assisted Extraction on the Properties of Freeze-Dried Pomegranate Arils

[ Vol. 16 , Issue. 1 ]

Author(s):

Nishant Kumar* and Neeraj   Pages 83 - 89 ( 7 )

Abstract:


Background: All parts of the pomegranate (fruits, leaves, flowers, and roots) are traditionally used as a folk medicine due to its high antioxidant and phenolic property. The pomegranate fruit is known for its antimicrobial, anticancer and anti-arteriosclerotic properties.

Objective: The current study aims to the effect of ultra-sonication and temperature (45°C) on freezedried pomegranate arils powder for extraction of phenolic and flavonoid compounds and to study the antioxidant activity.

Methods: The freeze-dried arils of pomegranate (Ganesh variety) were procured and subjected to ultra- sonication methods at 45ºC applied for 30 minutes by using methanol, ethanol, water, acetone and hexane solvent for obtaining the extract. The methanolic extract showed the highest phenolic (3036.725 ± 5.39 Gallic acid equivalents mg/100gm), flavonoid (15882.088 ± 0.64, quercetin mg/100g), antioxidant activity (96.1367±0.13%) and free reducing antioxidant power (FRAP assay-18.9033 ± 0.12, Tor. mg/100 ml) respectively, as compared to the extract obtained through other solvents.

Results: The results obtained indicate that the freeze-drying method and ultrasonic extraction method is one of the effective and quick methods for quality extraction of phenolic and flavonoids compounds from fruits.

Conclusion: The technology can further be explored for the development of nutraceutical and health supplements.

Keywords:

Antioxidant activity, drying, pomegranate arils, total flavonoid content, total phenolic content, ultra-sonication.

Affiliation:

Department of Agriculture and Environmental Sciences, National Institute of Food Technology Entrepreneurship and Management, Kundli, Sonepat 131028, Haryana, Department of Agriculture and Environmental Sciences, National Institute of Food Technology Entrepreneurship and Management, Kundli, Sonepat 131028, Haryana

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