Production of l-Phenylalanine from Starch by Analog-Resistant Mutants of Bacillus polymyxa†
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چکیده
منابع مشابه
Production of L-arginine by arginine hydroxamate-resistant mutants of Bacillus subtilis.
l-Arginine hydroxamate inhibited the growth of various bacteria, and the inhibition was readily reversed by arginine. l-Arginine hydroxamate (10(-3)m) completely inhibited the growth of Bacillus subtilis. This inhibitory effect was prevented by 2.5 x 10(-4)ml-arginine, which was the most effective of all the natural amino acids in reversing the inhibition. l-Arginine hydroxamate-resistant mutan...
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Bacteria were found that are capable of producing good yields of beta-amylase in unrefined media. The culture filtrates are free of alpha-amylase and isoamylase.
متن کاملComparison of growth and pectolytic enzyme production by Bacillus polymyxa.
Nagel, Charles W. (University of California, Davis) and Reese H. Vaughn. Comparison of growth and pectolytic enzyme production by Bacillus polymyxa. J. Bacteriol. 83:1-5. 1962.-Studies were made of pectolytic enzyme production by Bacillus polymyxa during growth. It was found that elaboration of enzyme occurred during logarithmic growth and ceased when the stationary phase was reached. The speci...
متن کاملAnalog kefir production with a low phenylalanine for Phenylketonuria
Phenylketonuria (PKU) is one of the most prevalent types of hereditary metabolic disorders which is caused due to an absence or reduction of the activity of the Phenylalanine hydroxylase enzyme in the liver which in turn, inhibits the transformation of phenylalanine (Phe) to tyrosine. In clinical terms, this disorder is displayed with severe, permanent and irreversible mental retardation. This ...
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...
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ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 1986
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.52.4.637-643.1986