The effect of ultrasonic treatment and the ethanol on the extraction of polyphenol content of apple pomace

Gonelimali Faraja and Szabó-Nótin Beatrix and Máté Mónika: The effect of ultrasonic treatment and the ethanol on the extraction of polyphenol content of apple pomace.

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Agro-industrial waste poses a significant effect on environmental pollution due to the challenges of waste management. Meanwhile, agro-industrial wastes are rich in bioactive compounds, particularly polyphenols that can be useful in the food, cosmetics and medicine industries. This study investigates the extraction of polyphenols from the industrial apple pomace of the variety Idared for potential use as natural food additives for the development of functional foods. Polyphenols from the dried apple pomace were extracted by the ultrasoundassisted extraction method using food-grade solvents ethanol and water. The amount of polyphenols extracted (Total phenolic content) was quantified by Folin-Ciocalteu’s method. Antioxidant activity was quantified by the Ferric reducing ability of plasma (FRAP) method. Sonicating the pomace at 20 kHz for 10 and 35 minutes resulted in the extracts with extraction recovery of 27 – 33 % for all solvents. Total phenolic content (TPC) was found to be 647 – 1430 µg GAE mL-1 while antioxidant activity (FRAP) was found to be 436 – 842 µg AAE mL1 . Results suggest that waste products (pomace) from the industrial processing of apples (variety Idared) are valuable resources for extracting useful polyphenols that can be used for functional foods development.

Item Type: Conference or Workshop Item
Journal or Publication Title: Proceedings of the International Symposium on Analytical and Environmental Problems
Date: 2022
Volume: 28
ISBN: 978-963-306-904-2
Page Range: pp. 159-163
Language: English
Place of Publication: Szeged
Event Title: 28th International Symposium on Analytical and Environmental Problems
Event Type: Conference
Event Location: Szeged
Event Dates: 2022. november 14-15.
Related URLs:
Uncontrolled Keywords: Polifenol, Élelmiszerkémia, Élelmiszeripari technológia
Additional Information: Bibliogr.: p. 162-163. ; ill. ; összefoglalás angol nyelven
Subjects: 01. Natural sciences
01. Natural sciences > 01.04. Chemical sciences
02. Engineering and technology
02. Engineering and technology > 02.10. Other engineering and technologies
Date Deposited: 2023. Mar. 20. 14:13
Last Modified: 2023. Mar. 20. 14:13

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