yeast media YEPG yeast extract peptone glycerol YPG http://openwetware.org/wiki/YPD_and_YPAD_medium http://www.ncbi.nlm.nih.gov/pubmed/12073320 Sirarat Sarntivijai A complex media containing a non-fermentable carbon source (glycerol), that requires respiration competence for yeast growth. It contains yeast extract, peptone, glycerol and distilled water. It can be used as a solid medium with the incusion of agar.