Preparation of yeast-malt-sucrose-agar, that is used as solid media for growing Zt. This is called 'YMA' in Bruce McDonald lab, althoug the same acronym is used also for different media. Have a look for example: Zain, M. E., et al. 'Influence of growth medium on diagnostic characters of Aspergillus and Penicillium species.' African Journal of Microbiology Research 3.5 (2009): 280-286.