Mechanism of L-Threonine and L-Lysine Production by Analog-resistant Mutants of Corynebacterium glutamicum

Enhanced production of L-lysine from Corynebacterium glutamicum by mutagenesis

Fermentative Production of Lysine by Corynebacterium glutamicum from Different Carbon Sources

Production of lysine by Corynebacterium glutamicum (PTCC 1532) from different agricultural by-products (molasses and pulpy waste date) was compared to glucose as raw materials. For this purpose, ammonium sulphate was selected as a constant nitrogen source. The effect of different nitrogen sources was also investigated with glucose as a constant carbon source. The production of L-lysine was exam...

Optimization of Fermentation Medium for L-lysine Production by Corynebacterium Glutamicum

Corynebacterium glutamicum is an industrially important microorganism used for amino acids production. The present work describes the production of L-lysine from Corynebacterium glutamicum IIB-C9 through submerged fermentation process. Fifteen fermentation media were screened in this study for L-lysine production. Out of these fifteen media, FM:13 was found a best one for maximum production of ...

Use of Feedback-Resistant Threonine Dehydratases of Corynebacterium glutamicum To Increase Carbon Flux towards l-Isoleucine.

The biosynthesis of l-isoleucine proceeds via a highly regulated reaction sequence connected with l-lysine and l-threonine synthesis. Using defined genetic Corynebacterium glutamicum strains characterized by different fluxes through the homoserine dehydrogenase reaction, we analyzed the influence of four different ilvA alleles (encoding threonine dehydratase) in vectors with two different copy ...

Engineering of Corynebacterium glutamicum for growth and production of L-ornithine, L-lysine, and lycopene from hexuronic acids

Background: Second-generation feedstocks such as lignocellulosic hydrolysates are more and more in the focus of sustainable biotechnological processes. Corynebacterium glutamicum, which is used in industrial amino acid production at a million-ton scale, has been engineered towards utilization of alternative carbon sources. As for other microorganisms, the focus has been set on the pentose sugar...