AI Article Synopsis
- - Sulfites are additives used in various foods to prevent oxidation and browning, but some people experience allergic-like reactions to them.
- - There are several methods for detecting sulfites, including rapid tests, but not all have been thoroughly evaluated for accuracy and effectiveness.
- - In this study, four methods for measuring sulfite concentrations in sulfited products were tested, with the LC-MS/MS and spectrophotometric methods yielding the most reliable results, while test strips were only accurate above 50 mg/kg and the spot test proved inaccurate.
Article Abstract
Sulfites are food additives found in a large variety of food products to help reduce oxidation and browning. A small subset of the population has "allergic-like" symptoms upon consumption of sulfite containing foods. There are several sulfite detection methods available in the literature that vary in analysis time and required instrumentation. There are also rapid screening tests available that have not been tested extensively for accuracy and precision. In this study, four different methods (an LC-MS/MS method, a spectrophotometric method, a test strip method and a spot test method) were used to determine the sulfite concentration of 10 different commercially sulfited products. Of these methods, the LC-MS/MS and the spectrophotometric method had the most comparable results. The test strips were only accurate at concentrations greater than 50 mg/kg (ppm) SO. The spot test method was found to be inaccurate with both standard solutions and samples.
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| http://dx.doi.org/10.1016/j.foodchem.2019.02.042 | DOI Listing |
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