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. 2020 Oct 21;8:555280. doi: 10.3389/fbioe.2020.555280

FIGURE 8.

FIGURE 8

Composition of organic extracts from M. aphidis (A) U. siamensis (B), and P. hubeiensis pro tem. (C) cultures in different concentrations of medium 1 (upper) and medium 2 (lower), after initiation of MEL production with 8% v/v rapeseed oil as substrate. Relative amounts of unconsumed triglycerides (TAG), free fatty acids (FFAs) and the different MEL variants are shown. For M. aphidis and P. hubeiensis pro tem., a generally higher conversion from oil to MEL in the extracts was achieved with medium 2 compared to medium 1. Increasing medium concentration in growth phase, which led to higher biomass concentrations (see Figure 6), showed a positive effect on overall conversion of oil into MEL for all species, while the relative proportions of the MEL-variants MEL-A, -B, -C, -D remained constant.