Chromatography Test for Honey Adulteration
Researchers from Univerité de Lyon (Lyon, France) have developed a chromatographic method for distinguishing 100% natural honey from adulterated or impure honey.
Researchers from Univerité de Lyon (Lyon, France) have developed a chromatographic method for distinguishing 100% natural honey from adulterated or impure honey. According to the researchers, some beekeepers and honey traders modify natural honey in an effort to increase its market value. The unscrupulous vendors do this by adding adulterants such as corn syrup. The analysis method involves a solid-phase extraction (SPE) sample preparation step using a cartridge packed with polymeric phase and a 12-port vacuum manifold followed by ion-exchange high performance liquid chromatography with pulsed amperometric detection. The researchers report that the complexity of the honey matrix makes the detection of honey adulteration difficult.
Analytical Challenges in Measuring Migration from Food Contact Materials
November 2nd 2015Food contact materials contain low molecular weight additives and processing aids which can migrate into foods leading to trace levels of contamination. Food safety is ensured through regulations, comprising compositional controls and migration limits, which present a significant analytical challenge to the food industry to ensure compliance and demonstrate due diligence. Of the various analytical approaches, LC-MS/MS has proved to be an essential tool in monitoring migration of target compounds into foods, and more sophisticated approaches such as LC-high resolution MS (Orbitrap) are being increasingly used for untargeted analysis to monitor non-intentionally added substances. This podcast will provide an overview to this area, illustrated with various applications showing current approaches being employed.
