Food Chemistry Commons^™

Isolation And Identification Of Chlorate-Reducing Hafnia Sp. From Milk, William P. Mccarthy, Meghana Srinivas, Martin Danaher, Christine O'Connor, Tom F. O'Callaghan, Douwe Van Sinderen, John Kenny, John T. Tobin

Articles

Chlorate has become a concern in the food and beverage sector, related to chlorine sanitizers in industrial food production and water treatment. It is of particular concern to regulatory bodies due to the negative health effects of chlorate exposure. This study investigated the fate of chlorate in raw milk and isolated bacterial strains of interest responsible for chlorate breakdown. Unpasteurized milk was demonstrated to have a chlorate-reducing capacity, breaking down enriched chlorate to undetectable levels in 11 days. Further enrichment and isolation using conditions specific to chlorate-reducing bacteria successfully isolated three distinct strains of Hafnia paralvei . Chlorate-reducing bacteria were …

Effect Of Storage Time And Temperature On The Recovery Of Milk And Peanut Residue From Environmental Swabs, Jessica Humphrey, Joseph Baumert, Stephen Taylor, Shyamali Jayasena

Honors Theses

Environmental swabs of shared processing equipment are commonly utilized by the food industry during cleaning validation studies. Some of these swabs are sent to 3^rd party laboratories for evaluation. However, the recovery of protein residues of allergenic foods between the time of swabbing and time of testing has yet to be systematically studied.

The objective of this study was to determine the recovery of allergen residues (peanut and milk) from swabs held at different holding times and temperatures. Commercial ELISAs (enzyme-linked immunosorbent assays) were evaluated to determine allergen residue recovery from swabs inoculated with known amounts of peanut and …

Rapid Multi-Class Multi-Residue Method For The Confirmation Of Chloramphenicol And Eleven Nitroimidazoles In Milk And Honey By Liquid Chromatography Tandem Mass Spectrometry, Mark Cronly, Patrice Behan, Barry Foley, Liam Regan, Sheila Martin, Michael Doyle, Edward Malone

Articles

A confirmatory method has been developed to allow for the analysis of eleven nitroimidazoles and also chloramphenicol in milk and honey samples. These compounds are classified as A6 compounds in annex IV of council regulation 2377/90 and therefore prohibited for the use in animal husbandry. Milk samples are extracted by acetonitrile with addition of NaCl, while honey samples are first dissolved in water before a similar extraction. Honey extracts undergo a hexane wash to remove impurities. Both milk and honey extracts are evaporated to dryness and reconstituted in initial mobile phase. These are then injected onto an LC-MS/MS system and …