Free radical-scavenging phytochemicals of hot water extracts of Acacia confusa leaves detected by an on-line screening method
Abstract
Acacia confusa Merr. (Leguminosae), a species native to Taiwan, is widely distributed on the hills and lowlands of Taiwan, and has been traditionally used as a medicine. In this study, phytochemicals and antioxidant activities of hot water extracts from A. confusa leaves were investigated for the first time. Among all the fractions from hot water extracts of leaves, the EtOAc-soluble fraction exhibits the best DPPH radical-scavenging activity, superoxide radical-scavenging activity, and reducing power. In addition, a rapid screening method, on-line RP-HPLC-DPPH system, for individual antioxidants in the EtOAc-soluble fraction was developed. Furthermore, following solid phase extraction (SPE) and reverse-phase high-performance liquid chromatography 12 pure phenolic compounds, including five major compounds (gallic acid, (+)-catechin, (-)-epicatechin, myricetin 3-glucopyranoside, and myricetin 3-rhamnopyranoside) were detected using the developed screening method. These results demonstrated that hot water extracts of A. confusa leaves have excellent antioxidant activities and thus have great potential as a source for natural health products.
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Some studies have already reported the antioxidant capacity of olive and mimosa leaf extracts.
“Some studies have already reported the antioxidant capacity of olive [17,18,22] and mimosa leaf [8,71] extracts.”
From Comparison of Techniques and Solvents on the Antimicrobial and Antioxidant Potential of Extracts from Acacia dealbata and Olea europaea (2020) · cites this paper as [71]
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“Some studies have already reported the antioxidant capacity of olive [17,18,22] and mimosa leaf [8,71] extracts.”
BackgroundPhytochemistry, Ethnomedicine, and Pharmacology of Acacia
(2018) · Studies in Natural Products Chemistry · doi:10.1016/b978-0-444-64057-4.00009-0 · Cited by 52 · see citing works
- Authors
- Tung, Y.-T., Wu, J.-H., Hsieh, C.-Y., Chen, P.-S., & Chang, S.-T.
- Affiliations
- National Taiwan University (TW)
- National Chung Hsing University (TW)
- Corresponding author
- Chang, Shang-Tzen
- Venue
- Food Chemistry
- Publisher
- Elsevier BV
- Published
- 2009-08
- Volume
- 115
- Issue
- 3
- Pages
- 1019-1024
- ISSN
- 0308-8146 (ISSN-L)
- OpenAlex
- W2118658402
- Cited by
- 62
- References
- 24
- Citations by year
- 2026: 1 · 2023: 2 · 2022: 4 · 2021: 4 · 2020: 1 · 2019: 3 · 2018: 3 · 2017: 1 · 2016: 2 · 2015: 6 · 2014: 9 · 2013: 5 · 2012: 5
- FWCI
- 4.53
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Food Chemistry (publishedVersion)
- Topics
- Health Sciences › Medicine › Biochemistry › Phytochemicals and Antioxidant Activities
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Phytochemistry and Biological Activities
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Medicinal Plant Research
- Keywords
- Acacia confusa, leaf extract, antioxidant activity, free radical scavenging, phenolic compounds, gallic acid, catechins, myricetin glycosides, hot water extraction, natural health products, traditional medicine
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