Two analytical methods, CE and HPLC, were developed, validated, and compared for simultaneously determining chlorogenic acid, quercetin, and kaempferol in leaves collected from twelve different sources of Thailand. The determination was accomplished by CE on the uncoated fused silica capillary tube and by HPLC on the ZORBAX Eclipse Plus C18 column. Chlorogenic acid was found to have the highest average amount in leaves, followed by kaempferol and quercetin, respectively.
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January 2021
Wall. (Leguminosae), locally known as Non-tai-yak or An-chan-pa, commonly distributed in tropical nations and Southeast Asia. Regarding traditional Thai medical system, roots carry out a potential in dermatology.
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January 2018
Wall. ex Baker is a medicinal plant found in the upper Northeastern regions of Thailand, which belongs to Zingiberaceae family. The present study aims to investigate the standardization parameters, to analyze chemical constituents of volatile oil by gas chromatography-mass spectrometry, and to determine the content of 5,7-dimethoxyflavone in rhizomes by thin-layer chromatography (TLC)-densitometry compared to TLC image analysis.
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