Copper (II) addition to accelerate lactic acid production from co-fermentation of food waste and waste activated sludge: Understanding of the corresponding metabolisms, microbial community and predictive functional profiling

2018 ◽  
Vol 76 ◽  
pp. 414-422 ◽  
Author(s):  
Tingting Ye ◽  
Xiang Li ◽  
Ting Zhang ◽  
Yinglong Su ◽  
Wenjuan Zhang ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Microbial Community ◽  
Activated Sludge ◽  
Food Waste ◽  
Acid Production ◽  
Lactic Acid Production ◽  
Waste Activated Sludge ◽  
Functional Profiling

Impact of storage duration and micro-aerobic conditions on lactic acid production from food waste

2021 ◽  
Vol 323 ◽  
pp. 124618
Author(s):  
Zengshuai Zhang ◽  
Panagiotis Tsapekos ◽  
Merlin Alvarado-Morales ◽  
Irini Angelidaki
Keyword(s):  
Lactic Acid ◽  
Food Waste ◽  
Acid Production ◽  
Lactic Acid Production ◽  
Storage Duration ◽  
Aerobic Conditions

Optimization of Lactic Acid Production from Food Waste by the Saccharification of Bacillus subtili

2010 ◽  
Vol 113-116 ◽  
pp. 1080-1083 ◽  
Author(s):  
Ying Ying Liu ◽  
Qun Hui Wang ◽  
Li Wei Chen ◽  
Xiao Qiang Wang ◽  
Juan Wang
Keyword(s):  
Bacillus Subtilis ◽  
Lactic Acid ◽  
Acid Concentration ◽  
Food Waste ◽  
Acid Production ◽  
Lactic Acid Production ◽  
Total Sugar ◽  
Lactic Acid Concentration ◽  
Two Phase ◽  
Better Than

In order to reduce the costs of production and increase the lactic acid yields, this research adopts Bacillus subtilis to substitute enzymes. The method used in the study is two-phase fermentation - inoculate Bacillus subtilis to food waste to produce sugar, and then inoculate Lactobacillus to food waste to yield lactic acid. 87.22 g l–1 of total sugar can be obtained from non-autoclaved food waste in 30 h of saccharification at 40 centigrade. After two-phase fermentation, the optimal lactic acid concentration was 50.77g/L. The results indicate that two-phase fermentation is better than synchronous saccharification fermentation.

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