Fig. 4From: Mediating oxidative stress enhances α-ionone biosynthesis and strain robustness during process scaling upInvestigation of the pathway intermediates and side products. A The MHO and α-ionone production ratio of strains AI_2211 and AI_2218 under 100 rpm and 300 rpm shaking speed by flask. B The composition of carotenoids (lycopene and carotene) for the different-colors cell pellets. The values were statistically analyzed by student’s t-test: ns, P > 0.05; * P < 0.05; ** P < 0.01; *** P < 0.001Back to article page