HiGlutaXL™ Dulbecco’s Modified Eagle Medium/ Nutrient Mixture F-12 Ham (DMEM / F12, 1:1 Mixture) w/ L-Alanyl-L-Glutamine, HEPES buffer, Sodium bicarbonate and Trace elements

HiGlutaXL™ medium contains the stabilized dipeptide form of L-glutamine, L-alanyl-L-glutamine. HiGlutaXL™ medium offers several advantages over the conventional glutamine containing media. Dipeptide form prevents the intramolecular cyclization reaction, thus preventing toxic build-up of ammonia. L-alanyl-Lglutamine incorporates L-alanine that protects the alpha amino acid group. Aminopeptidases within the cell break the dipeptide, gradually releasing both L -glutamine and L-alanine for use by the cell. The gradual release of Lglutamine obviates the need to supplement L-glutamine frequently and allows liquid media to be stored at 4°C for longer periods. AL139G is HiGlutaXL™ DMEM/Nutrient Mixture F-12 Ham with L-alanyl-L-glutamine, sodium bicarbonate, 15mM HEPES buffer and trace elements. HEPES, a zwitterionic buffer having a pKa of 7.3 at 37ºC prevents the initial rise in pH that tends to occur at the initiation of a culture and increases the buffering capacity of the medium.