Fig. 4From: Non-sterilized fermentation of high optically pure d-lactic acid by a genetically modified thermophilic Bacillus coagulans strainOptical purity of d-lactic acid in non-sterilized fed-batch fermentation of B. coagulans d-DSM1. Each data point represents the average of three replicates, with the error bars representing the standard deviationBack to article page