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Agriculturae Conspectus Scientificus, Vol. 84 No. 4, 2019.

Original scientific paper

Chemical diversity of the Melaleuca cajuputi leaf oils from six locations in southern Vietnam

Hong Thien Van orcid id orcid.org/ORCID ; Institute of Biotechnology and Food-technology, Industrial University of Ho Chi Minh City, 12 Nguyen Van Bao Street, Go Vap District, Ho Chi Minh City, Vietnam
Uyen Thuy Xuan Phan orcid id orcid.org/ORCID ; Institute of Biotechnology and Food-technology, Industrial University of Ho Chi Minh City, 12 Nguyen Van Bao Street, Go Vap District, Ho Chi Minh City, Vietnam
Gia Buu Tran orcid id orcid.org/ORCID ; Institute of Biotechnology and Food-technology, Industrial University of Ho Chi Minh City, 12 Nguyen Van Bao Street, Go Vap District, Ho Chi Minh City, Vietnam

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Abstract

Melaleuca cajuputi Powell, a member of Myrtaceae family, is a popular and valuable plant in Vietnam, especially in the southern region. In this study, gas chromatography-mass spectrometry was used to determine the diversity in chemical composition of M. cajuputi leaf oil collected from six sites in the South of Vietnam. A total of sixty compounds has been identified from the essential oils of M. cajuputi leaf, such as α-thujene, α-pinene, benzaldehyde, β-pinene, β-myrcene, α-phellandrene, α-terpinene, benzene, 1-methyl-2-(1- methylethyl), 1,8-cineole, γ-terpinene, etc. Among those, five compounds were found in all six samples including α-thujene, α-pinene, α-phellandrene, γ-terpinene, and α-terpinolene, whereas other compounds were only present in some samples with varying amounts. Principal Component Analysis (PCA) has been performed to examine the similarities in the composition of leaf oils among the collection sites using XLSTAT software. The results from PCA suggested that six samples of leaf oil could be classified into 2 chemotypes with different chemical constituents. Note that 1,8-cineole only occurred in chemotype group 1 whereas it was omitted in chemotype group 2. This finding explains the diversity of bioactivity of M. cajuputi collected from different regions and provide more information on M. cajuputi for further application in medicine and food industry.

Keywords

Melaleuca cajuputi; chemical diversity; essential oils; Southern Vietnam

Hrčak ID:

228928

URI

https://hrcak.srce.hr/228928

Publication date:

29.11.2019.

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