Identification and Characteristics of Lactic Acid Bacteria Isolated from Stylosanthes guianensis sw.

2011 ◽  
Vol 361-363 ◽  
pp. 701-706 ◽  
Author(s):  
Hai Rui Zhai ◽  
Han Lin Zhou ◽  
Jin Song Yang ◽  
Qian Wang ◽  
Hai Sheng Tan ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
16S Rdna ◽  
Enterococcus Faecalis ◽  
Acid Production ◽  
Lactic Acid Production ◽  
Hainan Province ◽  
Enterococcus Hirae ◽  
Stylosanthes Guianensis ◽  
Better Than

Four lactic acid bacteria (LAB) strains named HN78, HN87, HN91 and HN113 were separated fromStylosanthes guianensis SW. of Hainan province, which were identified bacterially using the classical classification and the sequences of 16S rDNA. The results showed that four strains wereEnterococcus hirae,Enterococcus faecalis,Lactococcus lactisandLactobacillus plantarum. The capability of lactic acid production of HN113 and HN91 were better than HN78 and HN87.

Incidence of Listeria monocytogenes in Silage and Its Subsequent Control by Specific and Nonspecific Antagonism

1990 ◽  
Vol 53 (8) ◽  
pp. 642-647 ◽  
Author(s):  
CURTT M. PERRY ◽  
CATHERINE W. DONNELLY
Keyword(s):  
Lactic Acid ◽  
Listeria Monocytogenes ◽  
Lactic Acid Bacteria ◽  
Acid Production ◽  
Lactic Acid Production ◽  
Dairy Farms ◽  
Listeria Innocua ◽  
Listeria Species

Silage samples representing approximately 10% of Vermont's dairy farms were tested for the presence of Listeria species. Listeria innocua was isolated from 15.3% of the silage samples, while Listeria monocytogenes was isolated from 2.9% of the examined samples. As silage pH increased, the incidence of Listeria increased concomitantly. Seventy-eight mesophilic lactic acid bacteria, indigenous to silage, were screened for specific and nonspecific antagonism against four L. monocytogenes indicator strains. Most of the silage isolates demonstrated nonspecific inhibition via lactic acid production against the L. monocytogenes indicator strains. None of the indigenous silage isolates tested in this survey demonstrated specific antagonism via production of bacteriocinogenic compounds.

Biotechnological advances in lactic acid production by lactic acid bacteria: lignocellulose as novel substrate

2018 ◽  
Vol 12 (2) ◽  
pp. 290-303 ◽  
Author(s):  
Enrique Cubas-Cano ◽  
Cristina González-Fernández ◽  
Mercedes Ballesteros ◽  
Elia Tomás-Pejó
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Acid Production ◽  
Lactic Acid Production

scholarly journals Bioreactor Scale-Up and Kinetic Modeling of Lactic Acid and Biomass Production by Enterococcus faecalis SLT13 during Batch Culture on Hydrolyzed Cheese Whey

2020 ◽  
Vol 2020 ◽  
pp. 1-9 ◽  
Author(s):  
Manel Ziadi ◽  
Sana M’Hir ◽  
Abdelkarim Aydi ◽  
Moktar Hamdi
Keyword(s):  
Lactic Acid ◽  
Enterococcus Faecalis ◽  
Batch Culture ◽  
Kinetic Modeling ◽  
Acid Production ◽  
Cheese Whey ◽  
Lactic Acid Production ◽  
Sugar Consumption ◽  
Sugar Utilization ◽  
Substrate Limitation

Kinetic modeling of biomass and lactic acid production by Enterococcus faecalis SLT13 have been developed during batch culture in M17 and Hydrolyzed Cheese Whey (HCW) in 2 L and 20 L bioreactors. The specific growth rate μmax was higher in 20 L bioreactor (1.09 h−1); however, the maximum specific lactic acid production rate qpmax and maximum specific sugar utilization rate qsmax were higher in 2 L bioreactor. Biomass and sugar utilization were affected by lactic acid inhibition in HCW. No effects of substrate inhibition have been observed. Substrate limitation of biomass has been observed on HCW in 20 L bioreactor; the substrate limitation constant for biomass Ksx was 4.229 g/L. Substrate limitation of sugar consumption has been observed on M17 in 2 L bioreactor; the substrate limitation constant for sugar consumption Kss was 2.73 g/L. Compared to experimental data, the model provided good predictions for biomass, sugar consumption, and lactic acid production.

Subsequent improvement of lactic acid production from beet molasses by Enterococcus hirae ds10 using different fermentation strategies

2021 ◽  
Vol 13 ◽  
pp. 100617
Author(s):  
Mohamed Ali Abdel-Rahman ◽  
Saad El-Din Hassan ◽  
Hassan M.A. Alrefaey ◽  
Ehab F. El-Belely ◽  
Tamer Elsakhawy ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Acid Production ◽  
Lactic Acid Production ◽  
Enterococcus Hirae ◽  
Beet Molasses ◽  
Subsequent Improvement

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.

scholarly journals Production of lactic acid by Enterococcus faecalis on waste glycerol from biodiesel production

2020 ◽  
Vol 26 (2) ◽  
pp. 151-156
Author(s):  
Jovan Ciric ◽  
Natasa Jokovic ◽  
Slavica Ilic ◽  
Sandra Konstantinovic ◽  
Dragisa Savic ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Carbon Source ◽  
Enterococcus Faecalis ◽  
Acid Production ◽  
Lactic Acid Production ◽  
Raw Material ◽  
Biodiesel Production ◽  
Waste Glycerol ◽  
Pure Glycerol ◽  
Microbial Utilization

Waste glycerol from biodiesel production is a valuable raw material that has been used to produce valuable microbial metabolites. In this work, the possibility of microbial utilization of waste glycerol obtained as a by-product in biodiesel production from sunflower and rapeseed oil by the lactic acid bacterium Enterococcus faecalis MK3-10A on a laboratory level was studied. For comparison, pure glycerol and glucose were used as carbon sources. The kinetics of the microbial biomass growth, the carbon source utilization, and the lactic acid production were monitored. The bacterium E. faecalis MK3-10A better grew in the media with glucose or pure glycerol as a carbon source, but the lactic acid production rate was the highest (14.6 mg/(ml/day)) in the medium with waste glycerol from the sunflower oil-based biodiesel production. Therefore, this waste glycerol might be a promising carbon source for lactic acidbacteria cultivation and lactic acid production.

Lactic Acid Production from Distiller’s Grain by Mixed Ccultures of Lactobacillus casei and Streptococcus thermophilus

2010 ◽  
Vol 113-116 ◽  
pp. 1071-1074
Author(s):  
Hui Zou ◽  
Qun Hui Wang ◽  
Ying Ying Liu ◽  
Hui Li
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Acid Production ◽  
Lactobacillus Casei ◽  
Synergistic Effects ◽  
Lactic Acid Production ◽  
Streptococcus Thermophilus ◽  
Fermentation Conditions ◽  
Distiller’S Grain ◽  
Distiller's Grain

Lactic acid production using Lactobacillus casei and Streptococcus thermophilus individually or as mixed culture on distiller’s grain in open fermentation conditions was evaluated. Lactic acid production and residual sugar were the main features examined. Increased lactic acid production was observed, when mixed cultures were used in comparison to individual ones. This revealed possible synergistic effects between the two lactic acid bacteria.

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