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Molecules 2014, 19(11), 19220-19242; doi:10.3390/molecules191119220

Volatile Profiling of Aromatic Traditional Medicinal Plant, Polygonum minus in Different Tissues and Its Biological Activities

1
Metabolomics Research Laboratory, Institute of Systems Biology, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia
2
Department of Bio-Environment Chemistry, Chungnam National University, 99 Daehak-Ro, Yuseong-Gu, Daejon 305-764, Korea
3
Programme of Biomedical Science, Faculty of Health Sciences, School of Diagnostic and Applied Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Received: 22 August 2014 / Revised: 10 November 2014 / Accepted: 11 November 2014 / Published: 20 November 2014
(This article belongs to the Section Metabolites)
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Abstract

The aim of this research was to identify the volatile metabolites produced in different organs (leaves, stem and roots) of Polygonum minus, an important essential oil producing crop in Malaysia. Two methods of extraction have been applied: Solid Phase Microextraction (SPME) and hydrodistillation coupled with Gas Chromatography-Mass Spectrometry (GC-MS). Approximately, 77 metabolites have been identified and aliphatic compounds contribute significantly towards the aroma and flavour of this plant. Two main aliphatic compounds: decanal and dodecanal were found to be the major contributor. Terpenoid metabolites were identified abundantly in leaves but not in the stem and root of this plant. Further studies on antioxidant, total phenolic content, anticholinesterase and antimicrobial activities were determined in the essential oil and five different extracts. The plant showed the highest DPPH radical scavenging activity in polar (ethanol) extract for all the tissues tested. For anti-acetylcholinesterase activity, leaf in aqueous extract and methanol extract showed the best acetylcholinesterase inhibitory activities. However, in microbial activity, the non-polar extracts (n-hexane) showed high antimicrobial activity against Methicillin-resistant Staphylococcus aureus (MRSA) compared to polar extracts. This study could provide the first step in the phytochemical profiles of volatile compounds and explore the additional value of pharmacology properties of this essential oil producing crop Polygonum minus. View Full-Text
Keywords: Polygonum minus; volatile compound; different tissues; solid-phase microextractions; gas chromatography; biological activities; essential oil Polygonum minus; volatile compound; different tissues; solid-phase microextractions; gas chromatography; biological activities; essential oil
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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. (CC BY 4.0).

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MDPI and ACS Style

Ahmad, R.; Baharum, S.N.; Bunawan, H.; Lee, M.; Mohd Noor, N.; Rohani, E.R.; Ilias, N.; Zin, N.M. Volatile Profiling of Aromatic Traditional Medicinal Plant, Polygonum minus in Different Tissues and Its Biological Activities. Molecules 2014, 19, 19220-19242.

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