Abstract
The extracellular production of l-lysine in media with cane sugar, blackstrap molasses, or clarified sugar-cane juice by a previously obtained mutant of Ustilago maydis was studied. Enzymatically inverted clarified juice (medium J-3) gave 2.9 g of lysine per liter under the following conditions: inoculum, 5%; pH 5.8; temperature, 30 C; KLa in the fermentors, 0.41 mmoles of O2 per liter per min; fermentation time, 72 hr. The concentrate, obtained by direct evaporation and drying of the fermentation broth, could be used as a possible feed supplement because of its amino-acid and vitamin content.
Full text
PDF
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- BILINSKI E., DULANEY E. L., MCCONNEL W. B. Extracellular organic nitrogen in Ustilago maydis fermentation broths. Can J Biochem Physiol. 1956 Nov;34(6):1195–1198. [PubMed] [Google Scholar]
- DULANEY E. L. Formation of extracellular lysine by Ustilago maydis and Gliocladium sp. Can J Microbiol. 1957 Apr;3(3):467–476. doi: 10.1139/m57-050. [DOI] [PubMed] [Google Scholar]
- RICHARDS M., HASKINS R. H. Extracellular lysine production by various fungi. Can J Microbiol. 1957 Jun;3(4):543–546. doi: 10.1139/m57-058. [DOI] [PubMed] [Google Scholar]