Microbial Production of L-Phenylalanine from n-Alkanes
نویسندگان
چکیده
منابع مشابه
Microbial Oxidation of Gaseous Hydrocarbons: Production of Methylketones from Corresponding n-Alkanes by Methane-Utilizing Bacteria.
Cell suspensions of methane-utilizing bacteria grown on methane oxidized n-alkanes (propane, butane, pentane, hexane) to their corresponding methylketones (acetone, 2-butanone, 2-pentanone, 2-hexanone). The product methylketones accumulated extracellularly. The rate of production of methylketones varied with the organism used for oxidation; however, the average rate of acetone, 2-butanone, 2-pe...
متن کاملAmino Acid Isomerization in the Production of L-phenylalanine from D-phenylalanine by Bacteria.
To establish an advantageous method for the production of l-amino acids, microbial isomerization of d- and dl-amino acids to l-amino acids was studied. Screening experiments on a number of microorganisms showed that cell suspensions of Pseudomonas fluorescens and P. miyamizu were capable of isomerizing d- and dl-phenylalanines to l-phenylalanine. Various conditions suitable for isomerization by...
متن کاملMicrobial Incorporation of Fatty Acids Derived from N-alkanes into Glycerides and Waxes.
When n-alkanes with 13 to 20 carbon atoms were fed to a Nocardia closely related to N. salmonicolor, the produced cellular triglycerides and aliphatic waxes invariably contained fatty acids with an even or an odd number of carbon atoms subject to this feature of the n-alkane substrate. Beta-oxidation and C(2) addition are both operative, as evidenced by the spectra of fatty acids incorporated i...
متن کاملenhancement biodegradation of n-alkanes from crude oil contaminated seawater
the aim of this research was to optimize bioremediation of seawater samples spiked with 1000 mg/l crude oil for removal of n-alkanes (c12h26 to c34h70). bioaugmentation experiments were performed at laboratory scale: each bioreactor contained 250 ml dispersed crude-oil-contaminated seawater, indigenous acclimatized microorganism and nitrogen and phosphorus at concentrations based on central com...
متن کاملGenetic engineering of Escherichia coli to improve L-phenylalanine production
BACKGROUND L-phenylalanine (L-Phe) is an essential amino acid for mammals and applications expand into human health and nutritional products. In this study, a system level engineering was conducted to enhance L-Phe biosynthesis in Escherichia coli. RESULTS We inactivated the PTS system and recruited glucose uptake via combinatorial modulation of galP and glk to increase PEP supply in the Xllp...
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ژورنال
عنوان ژورنال: Agricultural and Biological Chemistry
سال: 1970
ISSN: 0002-1369,1881-1280
DOI: 10.1271/bbb1961.34.1516