Publication: Phytochemical and antioxidant studies of Laurera benguelensis growing in Thailand
Issued Date
2010-01-01
Resource Type
ISSN
07176287
07169760
07169760
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2-s2.0-78549231925
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Mahidol University
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SCOPUS
Bibliographic Citation
Biological Research. Vol.43, No.2 (2010), 169-176
Suggested Citation
Nedeljko T. Manojlovic, Perica J. Vasiljevic, Wandee Gritsanapan, Roongtawan Supabphol, Ivana Manojlovic Phytochemical and antioxidant studies of Laurera benguelensis growing in Thailand. Biological Research. Vol.43, No.2 (2010), 169-176. doi:10.4067/S0716-97602010000200004 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/28553
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Title
Phytochemical and antioxidant studies of Laurera benguelensis growing in Thailand
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Abstract
The aim of this study was to investigate metabolites of the lichen Laurera benguelensis. A high-performance liquid chromatographic (HPLC) method has been developed for the characterization of xanthones and anthraquinones in extracts of this lichen. Lichexanthone, secalonic acid D, norlichexanthon, parietin, emodin, teloschistin and citreorosein were detected in the lichen samples, which were collected from two places in Thailand. Components of the lichen were identified by relative retention time and spectral data. This is the first time that a detailed phytochemical analysis of the lichen L. benguelensis was reported and this paper has chemotaxonomic significance because very little has been published on the secondary metabolites present in Laurera species. Some of the metabolites were detected for the first time in the family Trypetheliaceae. The results of preliminary testing of benzene extract and its chloroform and methanol fractions showed that all samples showed a weak radical scavenging activity. The chloroform extract showed the highest antioxidant activity.