Abstract: The invention provides an assay kit for the measurement of free D-galactose and/or L-arabinose in a sample, the kit comprising galactose mutarotase and (3-galactose dehydrogenase. The kit may further comprise a reagent capable of hydrolysing molecules containing D-galactose and/or L-arabinose, to yield the free mono- or disaccharide so that the kit finds use for determination of not just of free D-galactose and/or L-arabinose but also those molecules as released (or synthesized) from other molecules, including lactose, D-galactose-1-phosphate, galactosyl-sucrose oligosaccharides (such as raffinose), galactan, galactomannan, arabinan and arabinogalactan.

Abstract: The invention provides an assay kit for the measurement of free D-galactose and/or Larabinose in a sample, the kit comprising galactose mutarotase and (3-galactose dehydrogenase. The kit may further comprise a reagent capable of hydrolysing molecules containing D-galactose and/or L-arabinose, to yield the free mono- or disaccharide so that the kit finds use for determination of not just of free D-galactose and/or L-arabinosebut also those molecules as released (or synthesized) from other molecules, including lactose, D-galacose-1-phosphate, galactosyl-sucrose oligosaccharides (such as raffinose), galactan, galactomannan, arabinan and arabinogalactan.