Patent
Preparation of llglutamic acid by fermentation
TLDR
In this paper, a liquid medium containing glucose or sucrose as main carbon source was used to culture L-glutamic acid-producing bacteria under specific conditions, and aqueous ammonic (or ammonia gas) or an alkali hydroxide was added to the medium to keep the ammonium ion concentration in the medium between 0.3 and 10 g/d1.Abstract:
PURPOSE:To increase the concentration of glucose or sucrose in the culturing medium to more than 1.5 times the one obtainable by the conventional process, and to increase the amount of L-glutamic acid accumulated in the medium, by culturing L-glutamic acid-producing bacteria under specific conditions. CONSTITUTION:L-glutamic acid-producing bacteria (e.g. Brevibacterium devaricatum, Corynebacterium acetoacidiphilum) are inoculated in a liquid medium containing glucose or sucrose as main carbon source, and aerobically cultured. When the concentraion of the sucrose is decreased to a predetermined value below 10 g/1, glucose or sucrose is added to the medium, and at the same time, aqueous ammonic (or ammonia gas) or an alkali hydroxide is added to the medium to keep the ammonium ion concentration in the medium between 0.3 and 10 g/d1. The aqueous ammonia raises the concentration, while the alkali hydroxide lowers.read more
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L-Glutamic Acid-Producing Microorganism and a Method for Producing L-Glutamic Acid
TL;DR: In this paper, a coryneform bacterium that is modified by using a yggB gene so that L-glutamic acid-producing ability is enhanced as compared to a non-modified strains is cultured in a medium to cause accumulation of L-gluamic acid in the medium or bacterial cells.
Patent
Swash plate type compressor
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Patent
Method of producing L-amino acid
TL;DR: In this paper, a microorganism belonging to the family Enterobacteriaceae having an L-amino acid-producing ability was modified so that glycerol dehydrogenase and dihydroxyacetone kinase activities were increased.
Patent
Method for production of l-amino acid
TL;DR: A bacterium which belongs to the Enterobacteriaceae family and has an ability to produce an L-amino acid such as L-lysine, L-threonine and L-tryptophan and is modified to enhance glutamic acid decarboxylase activity is cultured in a medium to produce and accumulate the L amino acid in the medium or cells of the bacterium as mentioned in this paper.
Patent
Process for producing basic substance
Ryo Takeshita,Shinichi Sugimoto +1 more
TL;DR: In this paper, a process for producing a basic substance according to a fermentation technique, including culturing a microbe having the potency of producing basic substances in a fermentation tank containing a liquid culture medium, is described.
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Coded data storage and retrieval system
TL;DR: In this paper, the authors describe a data signalling system in which a bit of one kind (1) is represented by a transition near the centre of a bit " cell " and another bit of the opposite kind (0) by an abrupt transition near a transition in a bit cell.