Steering acidogenesis towards selective propionic acid production using co-factors and evaluating environmental sustainability

2020 ◽  
Vol 379 ◽  
pp. 122135 ◽  
Author(s):  
Shikha Dahiya ◽  
Sushmitha Lakshminarayanan ◽  
S. Venkata Mohan
Keyword(s):  
Propionic Acid ◽  
Environmental Sustainability ◽  
Acid Production ◽  
Propionic Acid Production

scholarly journals Propionic acid production from corn stover hydrolysate by Propionibacterium acidipropionici

2017 ◽  
Vol 10 (1) ◽  
Author(s):  
Xiaoqing Wang ◽  
Davinia Salvachúa ◽  
Violeta Sànchez i Nogué ◽  
William E. Michener ◽  
Adam D. Bratis ◽  
...  
Keyword(s):  
Corn Stover ◽  
Propionic Acid ◽  
Acid Production ◽  
Propionibacterium Acidipropionici ◽  
Propionic Acid Production ◽  
Corn Stover Hydrolysate

Propionic acid production from food waste in batch reactors: Effect of pH, types of inoculum, and thermal pre-treatment

2021 ◽  
Vol 319 ◽  
pp. 124166
Author(s):  
Rowayda Ali ◽  
Florencia Saravia ◽  
Andrea Hille-Reichel ◽  
Johannes Gescher ◽  
Harald Horn
Keyword(s):  
Propionic Acid ◽  
Food Waste ◽  
Acid Production ◽  
Batch Reactors ◽  
Effect Of Ph ◽  
Propionic Acid Production ◽  
Pre Treatment

Optimizing volatile fatty acid production in partial acidogenesis of swine wastewater

2004 ◽  
Vol 50 (8) ◽  
pp. 169-176 ◽  
Author(s):  
K. Yang ◽  
C. Oh ◽  
S. Hwang
Keyword(s):  
Propionic Acid ◽  
Acid Production ◽  
Volatile Fatty Acids ◽  
Nitrogen Concentration ◽  
Ammonia Nitrogen ◽  
Swine Wastewater ◽  
Fatty Acid Production ◽  
Stirred Tank Reactors ◽  
Physiological Conditions ◽  
Propionic Acid Production

This research has been conducted based on the fact that acetic and butyric acids are favorable substrates for methanogens, and that a low level of propionic acid production during acidogenesis minimizes the inhibition effect on methanogenic growth. Raw swine wastewater was pretreated with ammonia stripping to enhance acidogenesis. The ammonia nitrogen concentration of less than 1.2 g/L did not significantly affect the biochemical acidogenic potential of swine wastewater. For acidogenesis of swine wastewater, a et of experiments were carried out to produce short chain volatile fatty acids (VFA) in laboratory-scale continuously stirred tank reactors. The production of acetic, propionic, and butyric acids associated with simultaneous changes in hydraulic retention time (HRT) and temperature was investigated. Response surface methodology was successfully applied to approximate the responses of the VFA productions. The optimum physiological conditions where the maximum acetic and butyric acids production occurred were 2.4 days HRT at 34°C and 2.1 days HRT at 35°C, respectively. The propionic acid production linearly increased as both HRT and temperature increased.

EPS production by Propionibacterium freudenreichii facilitates its immobilization for propionic acid production

2018 ◽  
Vol 125 (2) ◽  
pp. 480-489 ◽  
Author(s):  
F.D.S. Belgrano ◽  
B.R.F. Verçoza ◽  
J.C.F. Rodrigues ◽  
R. Hatti‐Kaul ◽  
N. Pereira
Keyword(s):  
Propionic Acid ◽  
Acid Production ◽  
Propionibacterium Freudenreichii ◽  
Propionic Acid Production
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