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Acesulfame potassium (AceK), a high-intensity and non-caloric artificial sweetener, is used in various processed foods as a food additive. In this study, we established and validated a method for determining the AceK content in various processed foods by solvent extraction and quantitative 1H NMR, using a certified reference material as the internal standard. In the recovery test, the proposed method...
An absolute quantification method for the determination of dehydroacetic acid in processed foods using quantitative 1 H NMR was developed and validated. The level of dehydroacetic acid was determined using the proton signals of dehydroacetic acid referenced to 1,4-bis (trimethylsilyl) benzene-d 4 after simple solvent extraction from processed foods. All the recoveries from three processed...
The absolute quantification method of benzoic acid (BA) in processed foods using solvent extraction and quantitative proton nuclear magnetic resonance spectroscopy was developed and validated. BA levels were determined using proton signals (δ H 7.53 and 7.98) referenced to 2-dimethyl-2-silapentane-5-sulfonate-d 6 sodium salt (DSS-d 6 ) after simple solvent extraction from processed...
An analytical method using solvent extraction and quantitative proton nuclear magnetic resonance (qHNMR) spectroscopy was applied and validated for the absolute quantification of sorbic acid (SA) in processed foods. The proposed method showed good linearity. The recoveries for samples spiked at the maximum usage level specified for food in Japan and at 0.13gkg −1 (beverage: 0.013gkg −1...
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