Version 1
: Received: 20 March 2024 / Approved: 20 March 2024 / Online: 20 March 2024 (08:25:04 CET)
How to cite:
Ali, A.; Moeed, A.; Cottrell, J.J.; Dunshea, F.R. LC-ESI-QTOF-MS/MS Identification and Characterization of Phenolic Compounds from Leaves of Australian Myrtles and Their Antioxidant Activities. Preprints2024, 2024031187. https://doi.org/10.20944/preprints202403.1187.v1
Ali, A.; Moeed, A.; Cottrell, J.J.; Dunshea, F.R. LC-ESI-QTOF-MS/MS Identification and Characterization of Phenolic Compounds from Leaves of Australian Myrtles and Their Antioxidant Activities. Preprints 2024, 2024031187. https://doi.org/10.20944/preprints202403.1187.v1
Ali, A.; Moeed, A.; Cottrell, J.J.; Dunshea, F.R. LC-ESI-QTOF-MS/MS Identification and Characterization of Phenolic Compounds from Leaves of Australian Myrtles and Their Antioxidant Activities. Preprints2024, 2024031187. https://doi.org/10.20944/preprints202403.1187.v1
APA Style
Ali, A., Moeed, A., Cottrell, J.J., & Dunshea, F.R. (2024). LC-ESI-QTOF-MS/MS Identification and Characterization of Phenolic Compounds from Leaves of Australian Myrtles and Their Antioxidant Activities. Preprints. https://doi.org/10.20944/preprints202403.1187.v1
Chicago/Turabian Style
Ali, A., Jeremy J. Cottrell and Frank R. Dunshea. 2024 "LC-ESI-QTOF-MS/MS Identification and Characterization of Phenolic Compounds from Leaves of Australian Myrtles and Their Antioxidant Activities" Preprints. https://doi.org/10.20944/preprints202403.1187.v1
Abstract
Phenolic compounds, present in plants, provide substantial health advantages, such as antioxidant and anti-inflammatory properties, which enhance cardiovascular and cognitive well-being. Australia is enriched with a wide range of plants with phytopharmacological potential, which needs to be fully elucidated. In this context, we analyzed leaves of aniseed myrtle (Syzygium anisatum), lemon myrtle (Backhousia citriodora), and cinnamon myrtle (Backhousia myrtifolia) for their complex phytochemical profile and antioxidant potential. LC-ESI-QTOF-MS/MS was applied for screening and characterizing these Australian myrtles’ phenolic compounds and the structure-function relation of phenolic compounds. This study identified 145 and quantified/semi-quantified 27 phenolic compounds in these Australian myrtles. Furthermore, phenolic contents (total phenolic content (TPC), total condensed tannins (TCT), and total flavonoids (TFC)) and antioxidant potential of phenolic extracts from the leaves of Australian myrtles were quantified. Aniseed myrtle was quantified with the highest TPC (52.49 ± 3.55 mg GAE/g) and total antioxidant potential than other selected myrtles. Catechin, epicatechin, isovitexin, cinnamic acid, and quercetin were quantified as Australian myrtles' most abundant phenolic compounds. Moreover, chemometric analysis further validated the results. This study provides a new insight into the novel potent bioactive phenolic compounds from Australian myrtles that could be potentially useful for functional, nutraceutical, and therapeutic applications.
Keywords
aniseed myrtle; cinnamon myrtle; lemon myrtle; flavonoids; tannins; oxidative stress; human health
Subject
Chemistry and Materials Science, Food Chemistry
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
