Fig. 1
From: Non-traditional sources for isolation of lactic acid bacteria
Isomeric forms of lactic acid produced by lactic acid bacteria isolated from Geranium sanguineum L. collected from a the Vitosha region (Iskar Dam), b Eastern Rhodopes (Ivaylovgrad), and c the Sofia region (experimental field of the Institute of Biodiversity and Ecosystem Research [IBER] at the Bulgarian Academy of Sciences [BAS]): 
- L(+)-lactic acid; - D(−)-lactic acid. Bars represent standard deviation