2,3-Butanediol

About: 2,3-Butanediol is a research topic. Over the lifetime, 299 publications have been published within this topic receiving 6016 citations. The topic is also known as: Pseudobutylene glycol & Dimethylene glycol.

Evaluation of Lactic Acid Bacteria, Clostridium and Paenibacillus Isolates for 2, 3-Butanediol Production and Process Development using Agro-residues

Abstract: 2,3 Butanediol is an important natural biochemical which finds its application in a wide range of industries; from manufacture of printing inks, perfumes, fumigants, moistening and softening agents, explosives and plasticizers, to its use as a carrier for pharmaceuticals (Li et al., 2013 and Koutinas et al., 2014). 2,3-butanediol is a highly valuable fuel with the burning value of 27198 J/g, which is comparable to other liquid fuels as ethanol (29055 J/g) and methanol (22081 J/g); it can also be converted to methyl-ethylketone by sulfuric acid catalyzed dehydration, which is considered as an effective liquid fuel additive for its higher burning value than ethanol. After combination with methyl-ethylketone and hydrogenation reaction, 2,3butanediol can be converted to octane, which is used to produce high-quality aviation fuel (Lan et al., 2011). International Journal of Current Microbiology and Applied Sciences ISSN: 2319-7706 Volume 7 Number 12 (2018) Journal homepage: http://www.ijcmas.com

Isolation and identification of an osmotolerant Bacillus amyloliquefaciens strain T4 for 2, 3-butanediol production with tobacco waste.

Abstract: Microbial biomass and waste materials conversion for biochemicals production has been an alternative for energy conservation and emission reduction. While toxic substances in biomass materials and high osmotic pressure formed in fermentation-based systems block the bioconversion processes of microorganisms. In the present study, strain T4 that isolated from tobacco waste could resist toxic inhibitors such as nicotine and was suitable for generation of 2, 3-butanediol (2, 3-BD) with a high concentration of glucose (up to 20%). 30.06 and 1.54 g/L of 2, 3-BD was generated respectively from 50 g/L of tobacco waste with and without 200 g/L glucose after fermentation for 48 h. Besides, the results of biochemical tests showed that it was gram-positive and able to liquefy gelatin, hydrolyze starch and produce catalases. It could utilize glucose but not lactose as carbohydrates during fermentation. The 16S rRNA sequence and systematic analysis revealed that T4 was identified to be a Bacillus amyloliquefaciens (B. amyloliquefaciens). This work presents a promising model microorganism chassis to use the biomass waste for high value-added biochemicals production.

Geobacillus sp. and application thereof to 2, 3-butanediol and acetoin production through high-temperature fermentation

Abstract: The invention discloses Geobacillus sp. and application thereof to 2, 3-butanediol and acetoin production through high-temperature fermentation. The strain is Geobacillus sp. XT15 with collector number being CCTCC No.M2011022, is positive through gram staining and generates spores; the cellular morphology is rod-shaped, the length is 0.9-1.8mum and the diameter is 0.4-0.5mum; the strain can grow at 28-65 DEG C and the multiplication speed at 45-55 DEG C is the highest; and the most proper pH value of fermentation media for 2, 3-butanediol and acetoin production is 8.0. By using the strain, and taking glucose as a carbon source, 2, 3-butanediol and acetoin with total concentration being 46.1-57.9g/L can be produced after 48h of shake flask fermentation at 55 DEG C. The method for 2, 3-butanediol and acetoin production through high-temperature fermentation provided by the invention has the advantages of unwanted microbe contamination resistance, high reaction rate, cooling water saving, extensive operation and the like.