Detection of luxS gene expression under stressing factors for biofilm formation by Propionibacterium acidipropionici and Propionibacterium freudenreichii

Utilization of coenzyme A by Propionibacterium freudenreichii.

Genome Sequence of Propionibacterium acidipropionici ATCC 55737

Propionibacterium acidipropionici produces propionic acid as its main fermentation product. Traditionally derived from fossil fuels, environmental and sustainable issues have revived the interest in producing propionic acid using biological resources. Here, we present the closed sequence of Propionibacterium acidipropionici ATCC 55737, an efficient propionic acid producer.

Lipase and Esterase Activities of Propionibacterium freudenreichii subsp. freudenreichii.

The lipase and esterase activities of eight strains of dairy Propionibacterium freudenreichii subsp. freudenreichii were studied. A lipase activity was detected on whole cells and in the culture supernatant. The highest activity was expressed at 45 degrees C and pH 6.8. An esterase activity was also detected in the culture medium. The electrophoresis of the intracellular fractions of the cells ...

Enhanced Propionate Formation by Propionibacterium freudenreichii subsp. freudenreichii in a Three-Electrode Amperometric Culture System.

In order to influence the fermentation pattern of Propionibacterium freudenreichii towards enhanced propionate formation, growth and product formation with glucose and lactate as energy sources were studied in a three-electrode poised-potential amperometric culture system. With anthraquinone 2,6-disulfonic acid (E(0)' = -184 mV; poised electron potential = -224 mV) or cobalt sepulchrate (E(0)' ...

Propionic acid production from corn stover hydrolysate by Propionibacterium acidipropionici

BACKGROUND The production of value-added chemicals alongside biofuels from lignocellulosic hydrolysates is critical for developing economically viable biorefineries. Here, the production of propionic acid (PA), a potential building block for C3-based chemicals, from corn stover hydrolysate is investigated using the native PA-producing bacterium Propionibacterium acidipropionici. RESULTS A wid...