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Oligopeptides are the main source of nitrogen for Lactococcus lactis during growth in milk.
The consumption of amino acids and peptides was monitored during growth in milk of proteinase-positive (Prt+) and -negative (Prt-) strains of Lactococcus lactis. The Prt- strains showed monophasicExpand
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Ability of Thermophilic Lactic Acid Bacteria To Produce Aroma Compounds from Amino Acids
ABSTRACT Although a large number of key odorants of Swiss-type cheese result from amino acid catabolism, the amino acid catabolic pathways in the bacteria present in these cheeses are not well known.Expand
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Three Oligopeptide-binding Proteins Are Involved in the Oligopeptide Transport of Streptococcus thermophilus *
The functions necessary for bacterial growth strongly depend on the features of the bacteria and the components of the growth media. Our objective was to identify the functions essential to theExpand
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Rabbit whey acidic protein concentration in milk, serum, mammary gland extract, and culture medium.
Rabbit whey acidic protein has been purified from whey using an AcA54 column. The purified whey acidic protein had an amino acid composition in agreement with the previously defined cDNA sequence. AnExpand
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Formation of diacetyl and acetoin by Lactococcus lactis via aspartate catabolism
Aims:  To verify whether diacetyl can be produced by Lactococcus lactis via amino acid catabolism, and to investigate the impact of the pH on the conversion.
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Glutamate Dehydrogenase Activity Can Be Transmitted Naturally to Lactococcus lactis Strains To Stimulate Amino Acid Conversion to Aroma Compounds
ABSTRACT Amino acid conversion to aroma compounds by Lactococcus lactis is limited by the low production of α-ketoglutarate that is necessary for the first step of conversion. Recently, glutamateExpand
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Proteome analyses of heme-dependent respiration in Lactococcus lactis: involvement of the proteolytic system.
Sugar fermentation was long considered the sole means of energy metabolism available to lactic acid bacteria. We recently showed that metabolism of Lactococcus lactis shifts progressively fromExpand
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The specificity of oligopeptide transport by Streptococcus thermophilus resembles that of Lactococcus lactis and not that of pathogenic streptococci.
Peptide transport is a crucial step in the growth of Streptococcus thermophilus in protein- or peptide-containing media. The objective of the present work was to determine the specificity of peptideExpand
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Specificity of Milk Peptide Utilization byLactococcus lactis
ABSTRACT To study the substrate specificity of the oligopeptide transport system of Lactococcus lactis for its natural substrates, the growth of L. lactis MG1363 was studied in a chemically definedExpand
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Tyrosine and tryptophan derivatives in pig lumbar cerebrospinal fluid. Effects of subchronic administration of dopa associated with benserazide.
The role of the kynurenine metabolic pathway in neurodegenerative diseases was suggested on the basis of measurements of tryptophan derivatives in post mortem microdissected brain structures or inExpand