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. 2015 Jul;38(13):2260-6.
doi: 10.1002/jssc.201500207. Epub 2015 Jun 11.

Simultaneous quantitation of six major quassinoids in Tongkat Ali dietary supplements by liquid chromatography with tandem mass spectrometry

Young Min Han  1 , Moonhee Jang  2 , In Sook Kim  1 , Seung Hyun Kim  3 , Hye Hyun Yoo  1
Affiliations

Simultaneous quantitation of six major quassinoids in Tongkat Ali dietary supplements by liquid chromatography with tandem mass spectrometry

Young Min Han et al. J Sep Sci. 2015 Jul.

Abstract

Tongkat Ali (Eurycoma longifolia) is one of the most popular traditional herbs in Southeast Asia and generally consumed as forms of dietary supplements, tea, or drink additives for coffee or energy beverages. In this study, the liquid chromatography with tandem mass spectrometry method for the simultaneous quantitation of six major quassinoids of Tongkat Ali (eurycomanone, 13,21-dihydroeurycomanone, 13α(21)-epoxyeurycomanone, 14,15β-dihydroxyklaineanone, eurycomalactone, and longilactone) was developed and validated. Using the developed method, the content of the six quassinoids was measured in Tongkat Ali containing dietary supplement tablets or capsules, and the resulting data were used to confirm the presence of Tongkat Ali in those products. Among the six quassinoids, eurycomanone was the most abundant quassinoid in all samples tested. The developed method would be useful for the quality assessment of Tongkat Ali containing dietary supplements.

Keywords: Dietary supplements; Eurycoma longifolia; Liquid chromatography with tandem mass spectrometry; Quassinoids; Tongkat Ali.

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