GM Test and Possible Pitfalls
GM is a component of Aspergillus spp. cell wall. This polysaccharide is released into the surrounding environment during the growth or tissue invasion of the fungus. GM is composed of a mannan matrix with galactose side groups (Bart-Delabesse et al., 2005).GM s is usually added to food products as a stabilizer and to increase the viscosity of water phase. Several food items like pasta and rice contain GM (Matsudomi et al., 2002).