Isolation and Identification of Acylphloroglucinols in the Medicinal Plant, Melaleuca alternifolia (Australian Tea Tree)

Janelle Schafer; Ian Southwell; Lei Liu

doi:10.1002/cbdv.202100944

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Isolation and Identification of Acylphloroglucinols in the Medicinal Plant, Melaleuca alternifolia (Australian Tea Tree)

Journal article

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Isolation and Identification of Acylphloroglucinols in the Medicinal Plant, Melaleuca alternifolia (Australian Tea Tree)

Janelle Schafer, Ian Southwell and Lei Liu

Chemistry and Biodiversity, Vol.19(3), e202100944

2022

DOI: https://doi.org/10.1002/cbdv.202100944

Appears in Recent Faculty of Science and Engineering Publications

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Abstract

Melaleuca alternifolia

tea tree

acylphloroglucinols

ontogenetical variation

Myrtaceae

Plant biochemistry

Essential oil crops

Melaleuca alternifolia (tea tree), family Myrtaceae, is endemic to the northern rivers of NSW, Australia. Since 1925, the volatile components of the hydro- and steam-distilled oils of the leaves have been studied in detail. However, the less-volatile compounds have not been investigated. Using an ethanolic extract of the seedling leaves, the non-volatile components were studied using gas chromatography-mass spectrometry (GC/MS) and liquid chromatography- mass spectrometry (LC/MS). Four of these less-volatile components were isolated by preparative-HPLC from young seedling leaves and identified as the acylphloroglucinols 1-(2,6-dihydroxy-4- methoxy-3-methylphenyl)-2-methylpropan-1-one, callisalignone A, 1-(2,6-dihydroxy-4-methoxyphenyl)-3-methylbutan-1-one and pulverulentone B described here for the first time from M. alternifolia. These compounds change in concentration in the leaf sets as later seedling leaves mature on the seedling.

Details

Title: Isolation and Identification of Acylphloroglucinols in the Medicinal Plant, Melaleuca alternifolia (Australian Tea Tree)
Creators: Janelle Schafer - Southern Cross University
Ian Southwell - Southern Cross University
Lei Liu - Southern Cross University
Publication Details: Chemistry and Biodiversity, Vol.19(3), e202100944
Publisher: Wiley-VCH Verlag GmbH & Co. KGaA
Identifiers: 991012997198202368
Copyright: © 2022 The Authors. Chemistry & Biodiversity published by Wiley-VHCA AG. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. Open access publishing facilitated by Southern Cross University, as part of the Wiley - Southern Cross University agreement via the Council of Australian University Librarians.
Academic Unit: Faculty of Science and Engineering; Science
Language: English
Resource Type: Journal article

Isolation and Identification of Acylphloroglucinols in the Medicinal Plant, Melaleuca alternifolia (Australian Tea Tree)

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