Fig. 4

Effect of the DEGs deletion on the concentration of ethyl acetate production. a Ethyl acetate production of MET14, HOM3, ADR1, HAP4, HSP30, BTN2 gene deletion strains. b Ethyl acetate production of strains IS45∆HSP30 and ISP∆HSP30. c The concentration of acetate ethyl produced by HSP30 gene overexpression strains. These recombinant strains were fermented in corn synthesis medium. The value represented mean ± SD (n = 3). Statistical significance is denoted as **P < 0.01, *P < 0.05