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- E-ISSN 2288-8985
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Analysis of quercetin in extract of Hovenia dulcis Thunb
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2016, v.29 no.6, pp.255-260
https://doi.org/10.5806/AST.2016.29.6.255
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(2016). Analysis of quercetin in extract of Hovenia dulcis Thunb. Analytical Science and Technology, 29(6), 255-260, https://doi.org/10.5806/AST.2016.29.6.255
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Abstract
Based on the Korean Health Functional Food Act, health functional foods are dietary supplements containing nutrients or other substances that have nutritional or physiological effects. Since generic health functional food items have been expanded, this project was performed to develop a standardized analytical method of examining such sale items. The method exhibited high linearity in the quercetin calibration curve (R2>0.999) over concentrations of 0-40 μg/mL. The limits of detection and quantitation for quercetin were 0.12 μg/mL and 0.36 μg/mL, respectively, while quercetin recovery was 97.1-105.4 % with standard deviations of 1.15-3.11 %. To verify the accuracy of the analytical methods, the labeled amounts of purchased health functional foods were monitored. The recovery rate for multiple quercetin concentrations ranged from 82.5-105.1 % of the labeled amounts. Thus, the new method was suitable for all cases.
- keywords
- health/functional food, quercetin, analytical method
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