Quercetin

ID2
NameQuercetin
Synonyms
StructureThumb
Description
GroupPolyphenols
Sub-groupFlavonols
Exposure sourceDiet
Use
CAS number117-39-5
PubChem ID5280343
ChEBI ID16243
FooDB IDFDB011904
HMDB IDHMDB05794

Biomarker measurements

Biomarker concentration values

IDParent IDDepthSubject groupPopulationCountryCountry codeCohortTime definitionBiospecimenAnalytical methodBiomarkerBiomarker detailMeasurement sizeDetected (nb)Detected (%)Detected only?Arithmethic meanArithmethic SDGeometric meanGeometric SDMinMin (detected)Percentile_05Percentile_10Percentile_25MedianPercentile_75Percentile_90Percentile_95MaxInterquartile rangeMean 95% CI lowerMean 95% CI upperGMean 95% CI lowerGMean 95% CI upperUnitConverted arithmetic meanConverted geometric meanConverted medianAdjustment typeAdjusted onRegressed onExpressed asPublication
941451AllFemale university studentsGermanyDEPlasma, fastingHPLC after enzymatic hydrolysisQuercetin4822.8716.610.03.8420.2649.9181.1nmol/L22.9 nmol/L20.3 nmol/LCrudeRadtke 2002
2562552AllUniversity campus populationChinaCNPlasma, fastingHPLC after enzymatic hydrolysisQuercetin9272.3280.98nmol/L72.3 nmol/LCrudeZhang 2010
3914012AllUniversity studentsChinaCNPlasma, fastingHPLC after enzymatic hydrolysisQuercetin9280.2381.7353.95254.65nmol/L80.2 nmol/L54.0 nmol/LCrudeCao 2010
241224141Sub-study IIParticipants in a dietary validation studyNorwayNOUrine, 24-hLC-MS/MS after enzymatic hydrolysisQuercetin8522.861.2155.3ug/day0.1 mg/dayCrudeCarlsen 2011
38370AllVolunteers from the Human Nutrition Unit volunteer databank at the Institute of Food Research in NorwichUnited KingdomGBUrine, 24-hHPLC after enzymatic hydrolysisQuercetin4960.133.1ug/day0.1 mg/dayCrudeRanka 2008
396239701All [by intake]Adults living in the Parisian areaFranceFRSU.VI.MAX (SUpplementation en VItamines et Mineraux AntioXydants)Urine, 24-hLC-MS/MS after enzymatic hydrolysisQuercetin530.70.5umol/day0.7 umol/dayCrudeMennen 2006
397839861All [by intake]Adults living in the Parisian areaFranceFRSU.VI.MAX (SUpplementation en VItamines et Mineraux AntioXydants)Urine, first morning spotLC-MS/MS after enzymatic hydrolysisQuercetin530.40.4umol/L400.0 nmol/LCrudeMennen 2006

Intake values

IDParent IDDepthSubject groupPopulationCountryCountry codeCohortTime definitionIntake toolIntake food coverageIntake time coverageIntake assessmentCompoundCompound detailSupplement intakes included?Measurement sizeDetected (nb)Detected (%)Detected only?Arithmethic meanArithmethic SDGeometric meanGeometric SDMinMin (detected)Percentile_05Percentile_10Percentile_25MedianPercentile_75Percentile_90Percentile_95MaxInterquartile rangeMean 95% CI lowerMean 95% CI upperGMean 95% CI lowerGMean 95% CI upperUnitConverted arithmetic meanConverted geometric meanConverted medianAdjustment typeAdjusted onRegressed onExpressed asPublication
861441AllFemale university studentsGermanyDEDietary record (7-day)Quercetin4817.899.54.866.6617.2530.5649.62mg/day17.9 mg/day17.2 mg/dayCrudeRadtke 2002
901421AllFemale university studentsGermanyDEDietary record (1-day)Quercetin4824.016.50.04.1916.5344.34120.3mg/day24.0 mg/day16.5 mg/dayCrudeRadtke 2002
2342332AllUniversity campus populationChinaCNFood Frequency Questionnaire (FFQ)Quercetin12814.688.91mg/day14.7 mg/dayCrudeZhang 2010
2472462AllUniversity campus populationChinaCN24-h Dietary recall (7-day)Quercetin16412.9111.1mg/day12.9 mg/dayCrudeZhang 2010
3903942AllUniversity studentsChinaCNDietary record (7-day)Quercetin9213.5811.180.01.0210.7630.250.74mg/day13.6 mg/day10.8 mg/dayCrudeCao 2010
38200AllVolunteers from the Human Nutrition Unit volunteer databank at the Institute of Food Research in NorwichUnited KingdomGBFood Frequency Questionnaire (FFQ)Quercetin4929.015.0mg/day29.0 mg/dayCrudeRanka 2008

Correlation values

Reproducibility values

IDMst. IDSubject groupPopulationCountryCountry codeCohortTime definitionBiological specimenExperimental methodBiomarkerBiomarker detailArithmetic meanGeometric meanMedianUnitAdjusted onReproducibility sizeICCICC 95% CI lowerICC 95% CI upperCV% WSCV% BSVAR WSVAR BSPublication
62819099AllSmall intervention study administering flaxseedGermanyDEbaseline; 1 week; 3 weeksPlasma, fastingHPLC after enzymatic hydrolysisQuercetinnmol/L70.140.52Linseisen 2008