Lactic acid production from biomass-derived sugars via co-fermentation of Lactobacillus brevis and Lactobacillus plantarum

2015 ◽  
Vol 119 (6) ◽  
pp. 694-699 ◽  
Author(s):  
Yixing Zhang ◽  
Praveen V. Vadlani
2009 ◽  
Vol 85 (3) ◽  
pp. 643-650 ◽  
Author(s):  
Kenji Okano ◽  
Qiao Zhang ◽  
Shogo Yoshida ◽  
Tsutomu Tanaka ◽  
Chiaki Ogino ◽  
...  

2014 ◽  
Vol 20 (4) ◽  
pp. 457-461 ◽  
Author(s):  
Ogbonnaya Nwokoro

Production of L-lactic acid using cultures of Rhizopus oligosporus and Lactobacillus plantarum was investigated. Cassava peels were hydrolyzed by boiling for 1 h in either NaOH or HCl solutions followed by neutralization to a pH of 6.2. Reducing sugar produced from the hydrolysates increased with increasing concentrations of alkali or acid. Samples hydrolyzed with HCl produced a maximum reducing sugar concentration of 402 mg/g substrate while alkali hydrolyzed samples produced a maximum reducing sugar concentration of 213 mg/g substrate. Hydrolysates were amended with 0.5% ammonium sulphate solution and inoculated with either single or mixed cultures of Rhizopus oligosporus and Lactobacillus plantarum and incubated for 48 h for lactic acid production. The best lactic acid production of 50.2 g/100g substrate was observed in a mixed culture fermentation of acid hydrolyzed peels. Mixed culture fermentation of alkali hydrolyzed peels produced a maximum lactic acid concentration of 36.4 g/100g substrate. Un hydrolyzed cassava peels inoculated with a mixed culture of the microorganisms produced only 4.6 g/100g substrate. This work reports an efficient use of cassava peels for bio-product formation through microbial fermentation.


Sign in / Sign up

Export Citation Format

Share Document