Isolated Microorganisms for Bioconversion of Biodiesel-Derived Glycerol Into 1,3-Propanediol
2017
Laura MITREA | Lavinia Florina CĂLINOIU | Gabriela PRECUP | Maria BINDEA | Bogdan RUSU | Monica TRIF | Bianca Eugenia ŞTEFĂNESCU | Ioana Delia POP | Dan Cristian VODNAR
During biodiesel production, massive amounts of raw glycerol are created generating an environmental issue and the same time an increase of biodiesel production cost at the same time. This raw glycerol could be converted by specific strains into value-added products, like 1,3-propanediol (1,3-PD), an important monomer used in the synthesis of biodegradable polyesters. The present work is based on recent scientific articles and experimental studies on the targeted topic, namely on the use of bacterial strains for bioconversion of biodiesel-derived glycerol into valuable products, like 1,3-PD. Concentrations, yields and productivity of 1,3-PD are presented for various bacterial strains. Important results as respects the microbial bioconversion of biodiesel-derived glycerol into 1,3-PD were registered for strains like Klebsiella pneumoniae, Citrobacter freundii, Escherichia coli and Lactobacillus diolivorans. From this study can be concluded that waste glycerol may be used as a nutrient source for microbial development and the production of 1,3-propanediol with high concentrations and yields.
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