Fig. 4From: Improved production of andrimid in Erwinia persicina BST187 strain by fermentation optimizationEffect of different initial pH (a), inoculation amount (b), fermentation time (c), and fermentation temperature (d) on andrimid production of BST187. The different letters (a, b, c, d) represent the significant differences among the media (p < 0.05)Back to article page