Quantitative Analysis of Fructo-oligosaccharides in Gynura divaricata subsp. formosana by High Performance Anion Exchange Chromatography-Pulsed Amperometric Detection
Free accessResearch articleFirst published online August, 2012
Quantitative Analysis of Fructo-oligosaccharides in Gynura divaricata subsp. formosana by High Performance Anion Exchange Chromatography-Pulsed Amperometric Detection
High performance anion exchange chromatography-pulsed amperometric detection was employed in this study to conduct quantitative analysis of the inulin-related fructo-oligosaccharides present in Gynura divaricata subsp. formosana. Result obtained for the 1-kestose (GF2), nystose (GF3) and 1F-β-fructofuranosyl-nystose (GF4) contents were 146.60 ± 0.04, 24.70 ± 0.75 and 16.60 ± 0.91 μg/g, fresh weight, and 68.90 ± 0.02, 7.60 ± 1.34 and 149.30 ± 0.06 μg/g (mean ± RSD), dry weight, respectively. Using this method, the limit of quantitation was 20 μg/mL and the linear detectability between 0-250 μg/mL. The developed method provides a practical analysis for these low caloric value, prebiotic and non-digestible carbohydrates in the genus Gynura.
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