Sabouraud Dextrose Agar (with Lecithin & Tween) is used for the isolation of fungi from surfaces sanitized with quaternary ammonium compounds in a laboratory setting. Sabouraud Dextrose Agar (with Lecithin & Tween) is not intended for use in the diagnosis of disease or other conditions in humans.
Sabouraud Dextrose Agar (SDA) is a modification of Dextrose Agar described by Sabouraud. SDA is used for cultivating pathogenic and commensal fungi and yeasts. The high dextrose concentration and acidic pH of the formula permits selectivity of fungi. The addition of Lecithin and Tween to Sabouraud Dextrose Agar is used to neutralize antiseptics and disinfectants for environmental monitoring and other applications. Complete neutralization of disinfectants is important. Disinfectant carryover can cause false no-growth test results.