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.

2,3-butanediol ester and preparation method thereof

Abstract: The invention relates to a 2,3- butanediol ester and a preparation method thereof, and belongs to the technical field of organic synthesis. A chemical structural formula of the 2,3- butanediol ester is as shown in the specification, wherein n is 1,2,3 or 4. The preparation for the 2,3- butanediol ester has two ways: one way is that the 2,3- butanediol ester is prepared by reaction of 2,3-epoxybutane and acid CnH2nO2; and the other way is that the 2,3- butanediol ester is prepared by reaction of 2,3- butanediol and acid CnH2nO2. The 2,3- butanediol ester disclosed by the invention has characteristics of being simple in preparation process, low in cost and wide in application field. And the preparation method is simple and easy to implement, and easy to realize.

Fermentation of 2,3-Butanediol Using Saccharified Hydrolyzate from Dioscorea zingiberensis

Abstract: The fed-batch fermentation of 2,3-butanediol by Klebsiella pneumoniae from Dioscorea zingiberensis was investigated.The concentration and productivity of target products, organic acid metabolism and glucose metabolic flux distributions during the fermentation were analyzed.The results showed that organic acids in Dioscorea zingiberensis could promote metabolic flux in tricarboxylic acids cycle and acetic acid production pathway and decrease the butane diacid production pathway, thus, 2,3-butanediol production was increased.80.20 g/L of 2,3-butanediol, 86.19 g/L of 2,3-butanediol and acetoin, corresponding to 1.54 g/(L-h) of productivity, were obtained using the hydrolyzate of Dioscorea zingiberensis as substrate and feeding glucose during fed-batch fermentation, which increased 8.50%, 7.38% and 7.69%, respectively, compared with that using glucose as sole substrate.