Partitioning of bromoform in dairy processing.

Abstract

Bromoform is a halogenated compound of growing interest due to its potential to reduce methane emissions in dairy cows. This study investigated the partitioning behavior of bromoform during the processing of raw milk that was deliberately dosed with bromoform. Through a pilot-scale study and validated analytical methods, we quantified bromoform concentrations across various product and waste streams and calculated partition coefficients to assess its distribution. Our results showed that bromoform preferentially accumulated in fat-rich matrices, with its concentration closely correlated with the fat content of most product streams. In contrast, significant reductions in bromoform levels were observed in processes involving substantial liquid/gas mass transfer, such as evaporation during powder production. The study contributes to a better understanding of contaminant behavior in dairy processing and supports the development of safer and more sustainable production practices.