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.

Recombinant microorganism having enhanced 2,3-butanediol producing ability and method for producing 2,3-butanediol using the same

Abstract: The present invention relates to a recombinant microorganism with increased productivity of 2,3-butanediol, wherein a pathway for converting pyruvate to acetyl-CoA, a pathway for converting pyruvate to formic acid, or a pathway for converting pyruvate to lactate is inhibited in a microorganism having acetyl-CoA and lactate biosynthetic pathways.

Method for increasing yield of paenibacillus polymyxa 2,3-butanediol by using vitamin C

Abstract: The invention discloses a method for increasing the yield of paenibacillus polymyxa 2,3-butanediol by using vitamin C. The method comprises the following steps: (1) seed culture; (2) fermentation culture: inoculating secondary seeds into a fermentation culture medium, performing fermentation under the conditions that the ventilatory capacity is 0.1-0.8vvm, the stirring rotating speed is 300-500rpm and the temperature is 32-42 DEG C for 12-24 hours, and adding 80-160g/L vitamin C solution when the concentration of glucose in the fermentation culture medium is reduced to 2-10g/L. By the adoption of a method for continuously adding a reducing agent, the method disclosed by the invention is favorable for maintenance of a redox situation of an external environment in which bionts exist in the whole fermentation process, so that consumption of the glucose in fermentation liquid and conversion of acetoin are finally promoted, and the accumulation of (R,R)-2,2- butanediol is improved.

Elicitation of (E)-2-Hexenal and 2,3-Butanediol on the Bioactive Compounds in Adventitious Roots of Astragalus membranaceus var. mongholicus.

Abstract: This study aimed to investigate the elicitation of volatile organic compounds (E)-2-hexenal and 2,3-butanediol on bioactive metabolites in Astragalus membranaceus var. mongholicus adventitious root cultures by adding them into the medium. The experiment was performed for 72 h and the roots were dynamically sampled for quantification of representative astragaloside IV, calycosin-7-O-β-d-glucoside (CG), ononin, and the gene expression. Compared with the controls, the combination of 2,3-butanediol and (E)-2-hexenal advanced the peak accumulation of astragaloside IV and was the most effective, but their individual application delayed it. Meanwhile, 2,3-butanediol and (E)-2-hexenal had no obviously promoting effect on the production of CG and ononin but chronologically changed their accumulation patterns. The underlying mechanism was uncovered by the correlation analysis between the metabolites and the gene expression, as did the identification of the target genes. Collectively, 2,3-butanediol and (E)-2-hexenal were important cues shaping the production of bioactive products in the herbal plant.