TY - JOUR
T1 - Application of Liquid Chromatography−Tandem Mass Spectrometry To Determine Urinary Concentrations of Five Commonly Used Low-Calorie Sweeteners: A Novel Biomarker Approach for Assessing Recent Intakes?
AU - Logue, Caomhan
AU - Dowey, Le Roy
AU - Strain, JJ
AU - Verhagen, Hans
AU - Mcclean, Stephen
AU - Gallagher, Alison
PY - 2017/6/7
Y1 - 2017/6/7
N2 - Although the use of low-calorie sweeteners (LCSs) is widespread, methods of assessing consumption within free-living populations have inherent limitations. Five commonly consumed LCSs, namely, acesulfame-K, saccharin, sucralose, cyclamate, and steviol glycosides, are excreted via the urine, and therefore a urinary biomarker approach may provide more objective LCS intake data. A LC-ESI-MS/MS method of simultaneously determining acesulfame-K, saccharin, sucralose, cyclamate, and the excretory metabolite of steviol glycosides, steviol glucuronide, in human urine was developed and validated. Linearity was observed over a concentration range of 10−1000 ng/mL with coefficients of determination ranging from 0.9969 to0.9997. Accuracy ranged from 92 to 104%, and intrabatch and interday precisions were within acceptable limits with %CV below 8% for all compounds. A double-blind, randomized crossover dose−response study was conducted to assess the usefulness of urinary LCS excretions (from both fasting spot and a full 24-h urine collection) for investigating recent intakes. Both modes ofsampling were useful for distinguishing between the three short-term intakes of acesulfame-K, saccharin, cyclamates, and steviol glycosides (p <0.001), whereas for sucralose, urinary concentrations were useful for distinguishing between low (0.1% ADI) and high doses (10% ADI) only (p <0.001). In summary, this biomarker approach may be useful for assessing intakes of fivecommonly consumed LCSs.
AB - Although the use of low-calorie sweeteners (LCSs) is widespread, methods of assessing consumption within free-living populations have inherent limitations. Five commonly consumed LCSs, namely, acesulfame-K, saccharin, sucralose, cyclamate, and steviol glycosides, are excreted via the urine, and therefore a urinary biomarker approach may provide more objective LCS intake data. A LC-ESI-MS/MS method of simultaneously determining acesulfame-K, saccharin, sucralose, cyclamate, and the excretory metabolite of steviol glycosides, steviol glucuronide, in human urine was developed and validated. Linearity was observed over a concentration range of 10−1000 ng/mL with coefficients of determination ranging from 0.9969 to0.9997. Accuracy ranged from 92 to 104%, and intrabatch and interday precisions were within acceptable limits with %CV below 8% for all compounds. A double-blind, randomized crossover dose−response study was conducted to assess the usefulness of urinary LCS excretions (from both fasting spot and a full 24-h urine collection) for investigating recent intakes. Both modes ofsampling were useful for distinguishing between the three short-term intakes of acesulfame-K, saccharin, cyclamates, and steviol glycosides (p <0.001), whereas for sucralose, urinary concentrations were useful for distinguishing between low (0.1% ADI) and high doses (10% ADI) only (p <0.001). In summary, this biomarker approach may be useful for assessing intakes of fivecommonly consumed LCSs.
KW - low-calorie sweeteners
KW - intense sweeteners
KW - biomarkers
KW - urinary biomarkers
KW - exposure
KW - food additives
KW - human urine
UR - https://pure.ulster.ac.uk/en/publications/application-of-liquid-chromatographytandem-mass-spectrometryto-de
UR - http://pubs.acs.org/doi/pdf/10.1021/acs.jafc.7b00404
U2 - 10.1021/acs.jafc.7b00404
DO - 10.1021/acs.jafc.7b00404
M3 - Article
SN - 0021-8561
VL - 65
SP - 4516
EP - 4525
JO - Journal of Agricultural and Food Chemistry
JF - Journal of Agricultural and Food Chemistry
IS - 22
ER -