Fig. 3From: Microbial production of rhamnolipids: opportunities, challenges and strategiesStrategies to reduce rhamnolipid production cost. a Strain screening. A good strain can reduce the production cost effectively; b strain modification by mutagenesis and metabolic engineering; c fermentation. Fermentation is an important step which requires a lot of efforts to optimize. The possible factors that affect fermentation cost are listedBack to article page