UPLC-Q-TOF-MS/MS analysis of pomegranate peel polyphenols and preliminary study on the biosynthesis of ellagic acid and flavonoids

Polyphenols are natural substances that are consumed in the daily diet and are found abundantly in a diverse range of fruits and vegetables. Deep eutectic solvent is a new kind of green solvent, which is widely used in the extraction and separation of polyphenols because it is non-toxic and pollutio...

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Main Authors: Xiaoxian Lu, Zi Ye, Lijie Jiang, Lele Wen, Juzhao Liu, Qi Cui
Format: Article
Language:English
Published: Maximum Academic Press 2024-01-01
Series:Beverage Plant Research
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Online Access:https://www.maxapress.com/article/doi/10.48130/bpr-0024-0031
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author Xiaoxian Lu
Zi Ye
Lijie Jiang
Lele Wen
Juzhao Liu
Qi Cui
author_facet Xiaoxian Lu
Zi Ye
Lijie Jiang
Lele Wen
Juzhao Liu
Qi Cui
author_sort Xiaoxian Lu
collection DOAJ
description Polyphenols are natural substances that are consumed in the daily diet and are found abundantly in a diverse range of fruits and vegetables. Deep eutectic solvent is a new kind of green solvent, which is widely used in the extraction and separation of polyphenols because it is non-toxic and pollution-free, and meets the requirements of environmental protection. This research used ultrasonic-assisted deep eutectic solvent (glycerol/urea 1:2, mol/mol, 30% water content) to extract polyphenols from pomegranate peel with improved extraction efficiency. The extracts were analyzed and identified by UPLC-Q-TOF-MS/MS, and 53 compounds were obtained, of which 10 were ellagic acid and its derivatives, and 32 were flavonoids. These polyphenols exhibit a wide range of pharmacological properties, including, but not limited to anti-inflammatory and antioxidant effects. Long-term intake of these polyphenols can effectively prevent chronic diseases, such as cardiovascular and cerebrovascular diseases, chronic tumors, etc. Polyphenols generally have good water solubility, especially anthocyanin compounds with cationic structures that have the best water solubility. Therefore, the incorporation of polyphenols into water to prepare tea and its regular consumption confers significant health benefits. Compared with acarbose, Punicalagin had a better inhibitory ability on α-glucosidase with a binding affinity of −12.2 kcal/mol and 10 hydrogen bonds were formed, indicating that Punicalagin had a potential anti-diabetic function. Pomegranate peel, a by-product of the pomegranate fruit, is typically discarded as waste in daily operations. However, exploring secondary applications for pomegranate peel not only contributes to cost reduction for enterprises but also promotes environmental sustainability and facilitates sustainable development. The extraction technology of pomegranate peel polyphenols also provides a new idea and method for the deep processing of agricultural products. This work will help to understand the biosynthetic pathways of pomegranate peel polyphenols, to facilitate the development of beverages containing pomegranate peel polyphenols.
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id doaj-art-611257e577ac4f5fa8f8f0b2e9d14065
institution DOAJ
issn 2769-2108
language English
publishDate 2024-01-01
publisher Maximum Academic Press
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series Beverage Plant Research
spelling doaj-art-611257e577ac4f5fa8f8f0b2e9d140652025-08-20T03:18:31ZengMaximum Academic PressBeverage Plant Research2769-21082024-01-014111010.48130/bpr-0024-0031bpr-0024-0031UPLC-Q-TOF-MS/MS analysis of pomegranate peel polyphenols and preliminary study on the biosynthesis of ellagic acid and flavonoidsXiaoxian Lu0Zi Ye1Lijie Jiang2Lele Wen3Juzhao Liu4Qi Cui5School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 311402, PR ChinaSchool of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 311402, PR ChinaSchool of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 311402, PR ChinaSchool of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 311402, PR ChinaSchool of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 311402, PR ChinaSchool of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 311402, PR ChinaPolyphenols are natural substances that are consumed in the daily diet and are found abundantly in a diverse range of fruits and vegetables. Deep eutectic solvent is a new kind of green solvent, which is widely used in the extraction and separation of polyphenols because it is non-toxic and pollution-free, and meets the requirements of environmental protection. This research used ultrasonic-assisted deep eutectic solvent (glycerol/urea 1:2, mol/mol, 30% water content) to extract polyphenols from pomegranate peel with improved extraction efficiency. The extracts were analyzed and identified by UPLC-Q-TOF-MS/MS, and 53 compounds were obtained, of which 10 were ellagic acid and its derivatives, and 32 were flavonoids. These polyphenols exhibit a wide range of pharmacological properties, including, but not limited to anti-inflammatory and antioxidant effects. Long-term intake of these polyphenols can effectively prevent chronic diseases, such as cardiovascular and cerebrovascular diseases, chronic tumors, etc. Polyphenols generally have good water solubility, especially anthocyanin compounds with cationic structures that have the best water solubility. Therefore, the incorporation of polyphenols into water to prepare tea and its regular consumption confers significant health benefits. Compared with acarbose, Punicalagin had a better inhibitory ability on α-glucosidase with a binding affinity of −12.2 kcal/mol and 10 hydrogen bonds were formed, indicating that Punicalagin had a potential anti-diabetic function. Pomegranate peel, a by-product of the pomegranate fruit, is typically discarded as waste in daily operations. However, exploring secondary applications for pomegranate peel not only contributes to cost reduction for enterprises but also promotes environmental sustainability and facilitates sustainable development. The extraction technology of pomegranate peel polyphenols also provides a new idea and method for the deep processing of agricultural products. This work will help to understand the biosynthetic pathways of pomegranate peel polyphenols, to facilitate the development of beverages containing pomegranate peel polyphenols.https://www.maxapress.com/article/doi/10.48130/bpr-0024-0031pomegranate peelpolyphenolsdeep eutectic solventsuplc-q-tof-ms/msellagic acidflavonoids
spellingShingle Xiaoxian Lu
Zi Ye
Lijie Jiang
Lele Wen
Juzhao Liu
Qi Cui
UPLC-Q-TOF-MS/MS analysis of pomegranate peel polyphenols and preliminary study on the biosynthesis of ellagic acid and flavonoids
Beverage Plant Research
pomegranate peel
polyphenols
deep eutectic solvents
uplc-q-tof-ms/ms
ellagic acid
flavonoids
title UPLC-Q-TOF-MS/MS analysis of pomegranate peel polyphenols and preliminary study on the biosynthesis of ellagic acid and flavonoids
title_full UPLC-Q-TOF-MS/MS analysis of pomegranate peel polyphenols and preliminary study on the biosynthesis of ellagic acid and flavonoids
title_fullStr UPLC-Q-TOF-MS/MS analysis of pomegranate peel polyphenols and preliminary study on the biosynthesis of ellagic acid and flavonoids
title_full_unstemmed UPLC-Q-TOF-MS/MS analysis of pomegranate peel polyphenols and preliminary study on the biosynthesis of ellagic acid and flavonoids
title_short UPLC-Q-TOF-MS/MS analysis of pomegranate peel polyphenols and preliminary study on the biosynthesis of ellagic acid and flavonoids
title_sort uplc q tof ms ms analysis of pomegranate peel polyphenols and preliminary study on the biosynthesis of ellagic acid and flavonoids
topic pomegranate peel
polyphenols
deep eutectic solvents
uplc-q-tof-ms/ms
ellagic acid
flavonoids
url https://www.maxapress.com/article/doi/10.48130/bpr-0024-0031
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