Fig. 3
From: Engineering Escherichia coli to convert acetic acid to β-caryophyllene
The effects of types and concentrations of nitrogen source on β-caryophyllene production by YJM67. a The Effect of different organic nitrogen source on β-caryophyllene production by YJM67. a Beef extract (Aladdin, ○); b yeast extract powder (Beijing AoBoXing Bio-Tech Co., Ltd, ●); c beef extract powder (MDBio, Inc, ■); d beef extract (Beijing Shuangxuan Microbe Culture Medium Products Factory, ▼); e beef extract (Sinopharm Chemical Reagent Co., Ltd, ◄); f beef extract (solarbio, ►). a The Effect of concentration of nitrogen source on β-caryophyllene production by YJM67. When OD600 reached 0.6–0.9, cultures were induced for 56 h using IPTG in shake-flasks. All the experiments were carried out in triplicates. Optimized conditions: Nitrogen sources, beef power; concentrations of nitrogen source, 5 g/L