Valorization of Wasted Plant Parts: Mineral Bioavailability, Antioxidant, and Antimicrobial Properties of Wasted Aerial Parts of Selected Root Vegetables

This study aims to investigate the valorization of the wasted aerial parts of root vegetables (onion, white radish, red radish, carrot, and beetroot) as a source of minerals and antioxidant compounds. The findings revealed that the aerial parts of the plants contained valuable amounts of the total p...

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Main Authors: Amro B. Hassan, Isam A. Mohamed Ahmed, Mohammed Saeed Alkaltham, Akram A. Qasem, Mohammed A. Mohammed, Ali Saleh, Belal M. Mohammed
Format: Article
Language:English
Published: MDPI AG 2025-03-01
Series:Horticulturae
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Online Access:https://www.mdpi.com/2311-7524/11/4/361
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author Amro B. Hassan
Isam A. Mohamed Ahmed
Mohammed Saeed Alkaltham
Akram A. Qasem
Mohammed A. Mohammed
Ali Saleh
Belal M. Mohammed
author_facet Amro B. Hassan
Isam A. Mohamed Ahmed
Mohammed Saeed Alkaltham
Akram A. Qasem
Mohammed A. Mohammed
Ali Saleh
Belal M. Mohammed
author_sort Amro B. Hassan
collection DOAJ
description This study aims to investigate the valorization of the wasted aerial parts of root vegetables (onion, white radish, red radish, carrot, and beetroot) as a source of minerals and antioxidant compounds. The findings revealed that the aerial parts of the plants contained valuable amounts of the total phenolic and total flavonoid content with high antioxidant activity, particularly those of carrots. Additionally, the contents of vitamin C, gamma-aminobutyric acid (GABA), and anthocyanin were found in appreciable amounts in most of the samples, except those parts of onion in which the lowest quantity of vitamin C and GABA were detected. Among the phenolic and flavonoid compounds, quercetin was recorded as the major phenolic compound, followed by kaempferol in beetroot, carrot, white radish, and red radish aerial parts. Interestingly, the extraction from the wasted parts of the studied plant exhibited high antimicrobial activity against several species of pathogenic bacteria. Moreover, these aerial wasted parts of the root vegetables had considerable Ca, Mg, Na, K, P, Zn, and Fe content with moderately high bioavailability. Overall, the aerial wasted parts of root vegetables are rich in bioactive compounds and minerals, paving the way for potential utilization in food and feed applications.
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spelling doaj-art-24fb0b5848f342b5980d036ad2cae2b62025-08-20T02:18:11ZengMDPI AGHorticulturae2311-75242025-03-0111436110.3390/horticulturae11040361Valorization of Wasted Plant Parts: Mineral Bioavailability, Antioxidant, and Antimicrobial Properties of Wasted Aerial Parts of Selected Root VegetablesAmro B. Hassan0Isam A. Mohamed Ahmed1Mohammed Saeed Alkaltham2Akram A. Qasem3Mohammed A. Mohammed4Ali Saleh5Belal M. Mohammed6Department of Food Science and Nutrition, Faculty of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi ArabiaDepartment of Food Science and Nutrition, Faculty of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi ArabiaDepartment of Food Science and Nutrition, Faculty of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi ArabiaDepartment of Food Science and Nutrition, Faculty of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi ArabiaDepartment of Food Science and Nutrition, Faculty of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi ArabiaDepartment of Food Science and Nutrition, Faculty of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi ArabiaDepartment of Food Science and Nutrition, Faculty of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi ArabiaThis study aims to investigate the valorization of the wasted aerial parts of root vegetables (onion, white radish, red radish, carrot, and beetroot) as a source of minerals and antioxidant compounds. The findings revealed that the aerial parts of the plants contained valuable amounts of the total phenolic and total flavonoid content with high antioxidant activity, particularly those of carrots. Additionally, the contents of vitamin C, gamma-aminobutyric acid (GABA), and anthocyanin were found in appreciable amounts in most of the samples, except those parts of onion in which the lowest quantity of vitamin C and GABA were detected. Among the phenolic and flavonoid compounds, quercetin was recorded as the major phenolic compound, followed by kaempferol in beetroot, carrot, white radish, and red radish aerial parts. Interestingly, the extraction from the wasted parts of the studied plant exhibited high antimicrobial activity against several species of pathogenic bacteria. Moreover, these aerial wasted parts of the root vegetables had considerable Ca, Mg, Na, K, P, Zn, and Fe content with moderately high bioavailability. Overall, the aerial wasted parts of root vegetables are rich in bioactive compounds and minerals, paving the way for potential utilization in food and feed applications.https://www.mdpi.com/2311-7524/11/4/361aerial partsbioactive propertiesmineral bioavailabilityroot vegetables
spellingShingle Amro B. Hassan
Isam A. Mohamed Ahmed
Mohammed Saeed Alkaltham
Akram A. Qasem
Mohammed A. Mohammed
Ali Saleh
Belal M. Mohammed
Valorization of Wasted Plant Parts: Mineral Bioavailability, Antioxidant, and Antimicrobial Properties of Wasted Aerial Parts of Selected Root Vegetables
Horticulturae
aerial parts
bioactive properties
mineral bioavailability
root vegetables
title Valorization of Wasted Plant Parts: Mineral Bioavailability, Antioxidant, and Antimicrobial Properties of Wasted Aerial Parts of Selected Root Vegetables
title_full Valorization of Wasted Plant Parts: Mineral Bioavailability, Antioxidant, and Antimicrobial Properties of Wasted Aerial Parts of Selected Root Vegetables
title_fullStr Valorization of Wasted Plant Parts: Mineral Bioavailability, Antioxidant, and Antimicrobial Properties of Wasted Aerial Parts of Selected Root Vegetables
title_full_unstemmed Valorization of Wasted Plant Parts: Mineral Bioavailability, Antioxidant, and Antimicrobial Properties of Wasted Aerial Parts of Selected Root Vegetables
title_short Valorization of Wasted Plant Parts: Mineral Bioavailability, Antioxidant, and Antimicrobial Properties of Wasted Aerial Parts of Selected Root Vegetables
title_sort valorization of wasted plant parts mineral bioavailability antioxidant and antimicrobial properties of wasted aerial parts of selected root vegetables
topic aerial parts
bioactive properties
mineral bioavailability
root vegetables
url https://www.mdpi.com/2311-7524/11/4/361
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