Results 201 to 210 of about 13,130 (238)

Metabolic engineering of Escherichia coli for biological production of 1, 3-Butanediol

Bioresource Technology, 2023
The production of 1,3-butanediol (1,3-BDO) from glucose was investigated using Escherichia coli as the host organism. A pathway was engineered by overexpressing genes phaA (acetyl-CoA acetyltransferase), phaB (acetoacetyl-CoA reductase), bld (CoA-acylating aldehyde dehydrogenase), and yqhD (alcohol dehydrogenase).
Tayyab Islam, Thuan Phu Nguyen-Vo, Vivek Kumar Gaur, Junhak Lee, Sunghoon Park   +4 more
openaire   +3 more sources

Recent advances on production of 2, 3-butanediol using engineered microbes

Biotechnology Advances, 2019
As a significant platform chemical, 2, 3-butanediol (2, 3-BD) has found wide applications in industry. The success of microbial 2, 3-BD production was limited by the use of pathogenic microorganisms and low titer in engineered hosts. The utilization of cheaply available feedstock such as lignocellulose was another major challenge to achieve economic ...
Zhiliang, Yang, Zisheng, Zhang
openaire   +2 more sources

Engineering of glycerol dehydrogenase for improved activity towards 1, 3-butanediol

Applied Microbiology and Biotechnology, 2010
The objective of this study was to use protein engineering techniques to enhance the catalytic activity of glycerol dehydrogenase (GlyDH) on racemic 1, 3-butanediol (1, 3-BDO) for the bioproduction of the important pharmaceutical intermediate 4-hydroxy-2-butanone.
Hongfang, Zhang, George T, Lountos, Chi Bun, Ching, Rongrong, Jiang   +3 more
openaire   +2 more sources

Efficient conversion of hemicellulose into 2, 3-butanediol by engineered psychrotrophic Raoultella terrigena: mechanism and efficiency

Bioresource Technology, 2022
Low-temperature biorefineries inhibit the multiplication of undesired microorganisms, improve product purity and reduce economic costs. Herein, to improve the 2,3-butanediol (2,3-BD) bioconversion efficiency from hemicellulose, a psychrotrophic hemicellulose-degrading strain Raoultella terrigena HC6 with high β-xylosidase activity 1520 U/mL was ...
Yue, Wang, Bowen, Wu, Tian, Ma, Yaozu, Mi, Hanyi, Jiang, Haohao, Yan, Peichao, Zhao, Shuo, Zhang, Linxuan, Wu, Lei, Chen, Hailian, Zang, Chunyan, Li   +11 more
openaire   +2 more sources

A novel isopropanol salt aqueous two-phase system and its applications for 2, 3-butanediol extraction

Desalination, 2021
Abstract At present, the hydrophilic alcohol and inorganic salt combined with the two-phase system have been widely used in the extraction of biological fermentation products. However, the residual salt in the extraction solution of the existing system caused the loss of salt and increased the energy consumption of subsequent product separation ...
Hao Li, Liangdong Zhao, Shuo Yin, Chuanyu Chen, Haixiong Liu, Jing Fang   +5 more
openaire   +1 more source

2, 3-Butanediol activated disease-resistance of creeping bentgrass by inducing phytohormone and antioxidant responses

Plant Physiology and Biochemistry, 2018
Brown patch, caused by Rhizoctonia solani, is a serious disease in Agrostis stolonifera. 2, 3-butanediol (2, 3-BD) is the major component of volatile organic compounds and was found to initiate induced systemic resistance (ISR). To investigate the induced resistance mechanism of 2, 3-BD, we examined the effects of resistance by area affected, along ...
Yi Shi, Xinju Liu, Yuanyuan Fang, Qing Tian, Hanyu Jiang, Huiling Ma   +5 more
openaire   +2 more sources

Heat Capacities of Aqueous Solutions of Ethylene Glycol, Propylene Glycol and 1, 3-Butanediol

NIPPON KAGAKU KAISHI, 1972
A calorimerter composed of a Dewar vessel and a Beckmann thermometer was constructed. By means of this calorimeter, the heat capacities of aqueous solutions of ethylene glycol, propyrene glycol, and butanediol were measured at 30d C. It was confirmed by the measurement of heat capacities of n-heptane that the errors due to the evaporation were ...
Fumio KAWAIZUMI, Toshiyuki OTAKE, Hiroyasu NOMURA, Yutaka MIYAHARA   +3 more
openaire   +1 more source

Segmented block copolymers of natural rubber and 1, 3-butanediol–toluene diisocyanate oligomers

Polymer, 1998
Abstract A series of segmented block copolymers of NR and 1,3-butanediol–toluene diisocyanate oligomers have been synthesized with varying hard segment content. The synthesis has been carried out by one-shot and two-shot processes in solution. The products were characterized by spectral analysis, thermal and mechanical analysis, SEM and optical ...
C.J. Paul, M.R. Gopinathan Nair, N.R. Neelakantan, Peter Koshy, Bhaskar B. Idage, A.A. Bhelhekar   +5 more
openaire   +1 more source