David, thank you! Could you please refer me to some comprehensive resources? If possible and if present of course... After asking this question I was surfing the web and found expasy.org... It was quite helpful. Maybe you have something more specific? Anyways, again, thank you!
You could use this paper as an interesting starting point: Rossi M, Amaretti A , Raimondi S (2011). Folate production by probiotic bacteria. Nutrients. 3, 118-134