l-lactic acid production by Bacillus subtilis MUR1

2012 ◽  
Vol 121 ◽  
pp. 105-110 ◽  
Author(s):  
Ting Gao ◽  
Yukki Wong ◽  
Chungkei Ng ◽  
Kwokping Ho
Keyword(s):  
Bacillus Subtilis ◽  
Lactic Acid ◽  
Acid Production ◽  
Lactic Acid Production

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 Evolutionary Adaptation of Bacillus subtilis OCS SH-2 in Wheat Straw Hydrolysate for Bioethanol and Lactic Acid Production

2021 ◽  
Vol 36 (1) ◽  
Author(s):  
Imrana Khushk ◽  
Abdul Nabi Jatt ◽  
Abdul Sattar Qureshi ◽  
Choudhary Haider Ali ◽  
Muhammad Aqeel Bhutto ◽  
...  
Keyword(s):  
Bacillus Subtilis ◽  
Lactic Acid ◽  
Wheat Straw ◽  
Acid Production ◽  
Lactic Acid Production ◽  
Evolutionary Adaptation ◽  
Wheat Straw Hydrolysate

scholarly journals Improving Quality of Sunn Hemp (Crotalaria Juncea L.) Foliage as Roughage Source for Ruminants by using Microorganisms

2021 ◽  
Vol 18 (24) ◽  
pp. 1440
Author(s):  
Chantira Wongnen ◽  
Krittika Kabploy ◽  
Pijug Summpunn ◽  
Suchat Suksathits
Keyword(s):  
Bacillus Subtilis ◽  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Acid Production ◽  
Lactic Acid Production ◽  
Negative Control ◽  
Gas Production ◽  
Reduction Efficiency ◽  
Sunn Hemp ◽  
Fermented Juice

This study aims to investigate the chemical composition, fermentation characteristics, and in vitro ruminal digestibility efficiency of Sunn hemp silage with Fermented juice of epiphytic lactic acid bacteria (FJLAB) and bacillus subtilis. The experiment was designed in a CRD. Five dietary treatments were fresh Sunn hemp (FS, the positive control), Sunn hemp silage (SS, the negative control), Sunn hemp silage with B. subtilis (SSB), Sunn hemp silage with FJLAB (SSL), and SSB plus FJLAB (SSBL). The results showed the OM content of Sunn hemp silage was decreased (p < 0.05), but fiber contents (NDF, ADF, cellulose, and hemicellulose) were increased when compared with fresh Sunn hemp. However, SSL and SSBL could improve nutrition values (higher CP Reduction efficiency; p < 0.01, decrease cellulose; p < 0.01, and hemicellulose content; p < 0.10) and quality grading of Sunn hemp silage when compare with the negative control which did not affect to CP and EE values. Furthermore, FJLAB reduced fiber content and increase CP content of Sunn hemp silage, whereas B. subtilis presented the opposite results. However, the combination of FJLAB and B. subtilis showed the best treatment of Sunn hemp silage of this experiment (the highest CP and EE Reduction efficiency, ruminal gas production, and organic matter degradability; OMD). HIGHLIGHTS Pyrrolizidine Alkaloids, a toxin associated with disease in ruminants, found in Sunn hemp is completely destroyed by anaerobic microorganisms of silage The fermentation process of silage was improved by increasing lactic acid production and decreasing pH value to inhibit the growth of undesirable microbes Combination of fermented juice of epiphytic lactic acid bacteria (FJLAB) and Bacillus subtilis, lactic acid producer, for Sunn hemp silage treatment yielded the highest lactic acid production and nutritive values GRAPHICAL ABSTRACT

scholarly journals Protective effect of titanium tetrafluoride and silver diamine fluoride on radiation-induced dentin caries in vitro

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Beatriz Martines de Souza ◽  
Mayara Souza Silva ◽  
Aline Silva Braga ◽  
Patrícia Sanches Kerges Bueno ◽  
Paulo Sergio da Silva Santos ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Protective Effect ◽  
Acid Production ◽  
Lactic Acid Production ◽  
Negative Control ◽  
Titanium Tetrafluoride ◽  
Silver Diamine Fluoride ◽  
Dentin Caries ◽  
Radiation Induced

AbstractThis in vitro study evaluated the protective effect of titanium tetrafluoride (TiF4) varnish and silver diamine fluoride (SDF) solution on the radiation-induced dentin caries. Bovine root dentin samples were irradiated (70 Gy) and treated as follows: (6 h): 4% TiF4 varnish; 5.42% NaF varnish; 30% SDF solution; placebo varnish; or untreated (negative control). Microcosm biofilm was produced from human dental biofilm (from patients with head-neck cancer) mixed with McBain saliva for the first 8 h. After 16 h and from day 2 to day 5, McBain saliva (0.2% sucrose) was replaced daily (37 °C, 5% CO2) (biological triplicate). Demineralization was quantified by transverse microradiography (TMR), while biofilm was analyzed by using viability, colony-forming units (CFU) counting and lactic acid production assays. The data were statistically analyzed by ANOVA (p < 0.05). TiF4 and SDF were able to reduce mineral loss compared to placebo and the negative control. TiF4 and SDF significantly reduced the biofilm viability compared to negative control. TiF4 significantly reduced the CFU count of total microorganism, while only SDF affected total streptococci and mutans streptococci counts. The varnishes induced a reduction in lactic acid production compared to the negative control. TiF4 and SDF may be good alternatives to control the development of radiation-induced dentin caries.

scholarly journals Lactic acid production ability of Lactobacillus sp. from four tropical fruits using their by-products as carbon source

Heliyon ◽  
2021 ◽  
Vol 7 (5) ◽  
pp. e07079
Author(s):  
Joel Romial Ngouénam ◽  
Chancel Hector Momo Kenfack ◽  
Edith Marius Foko Kouam ◽  
Pierre Marie Kaktcham ◽  
Rukesh Maharjan ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Carbon Source ◽  
Acid Production ◽  
Lactic Acid Production ◽  
Tropical Fruits ◽  
By Products

γ-Valerolactone-Introduced Controlled-Isomerization of Glucose for Lactic Acid Production over Sn-Beta Catalyst

2021 ◽  
Author(s):  
Xinpeng Zhao ◽  
Zhimin Zhou ◽  
hu luo ◽  
Yanfei Zhang ◽  
Wang Liu ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Lactic Acid ◽  
Dft Calculations ◽  
Acid Production ◽  
Density Functional ◽  
Lactic Acid Production ◽  
Hydrothermal Conversion ◽  
Functional Theory ◽  
Environment Friendly

Combined experiments and density functional theory (DFT) calculations provided insights into the role of the environment-friendly γ-valerolactone (GVL) as a solvent in the hydrothermal conversion of glucose into lactic acid...

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