Fig. 2From: Efficient production of glycyrrhetinic acid in metabolically engineered Saccharomyces cerevisiae via an integrated strategyFermentation product identification for strain Y1-8; a GC–MS analysis of (1) squalene, (2) ergosterol, (3) lanosterol, (4) β-amyrin standards; b GC–MS analysis of cell extraction of control strain Cen.pk 2-1D; c GC–MS analysis of cell extraction of constructed strain Y1-8; d mass spectra of β-amyrin standard; e mass spectra of β-amyrin produced from strain Y1-8Back to article page