منابع مشابه
Glutamine and Glutamic Acid as Growth Factors for Lactic Acid Bacteria
In 1939 McIlwain, Fildes, Gladstone, and Knight found that the growth of Streptococcus hemolyticus depended upon the addition of glutamine to their medium, the presence of as little as 0.1 y per ml. producing noticeable growth in 24 hours (1). dl-Glutamic acid also exhibited a growth action, but over 10,000 times as much was required for a similar effect. The suggestion was made that the organi...
متن کاملAcetate-replacing Factors for Lactic Acid Bacteria
The stimulatory effect of sodium acetate on growth of lactic acid bacteria was first demonstrated by Snell et al. (1). Guirard et al. (2) investigated the role of acetate in the nutrition of certain lactic acid bacteria and showed that acetate serves a dual purpose in media, (a) that of a buffer and (b) that of a probable precursor of various lipides. It was further demonstrated (3) that some b...
متن کاملGlutamine and Glutamic Acid as Growth Factors for Lactic Acid Bacteria
In 1939 McIlwain, Fildes, Gladstone, and Knight found that the growth of Streptococcus hemolyticus depended upon the addition of glutamine to their medium, the presence of as little as 0.1 y per ml. producing noticeable growth in 24 hours (1). dl-Glutamic acid also exhibited a growth action, but over 10,000 times as much was required for a similar effect. The suggestion was made that the organi...
متن کاملOleic Acid and Related Compounds as Growth Factors for Lactic Acid Bacteria*
It is well known that under special conditions certain fatty acids markedly affect growth of lactic acid bacteria. In the microbiological assay of riboflavin and of pantothenic acid, marked stimulation of the assay organism, Lactobacillus cusei, results from the presence of small amounts of lecithin or of fatty acids (1, 2) when these vitamins are present in suboptimal amounts. At higher levels...
متن کاملDesoxyribosides and vitamin B12 as growth factors for lactic acid bacteria.
Rogosa, Tittsler, and Geib (1947) reported that many strains of Lactobacilluss bulgaricus, Lactobacillus lactis, Lactobacillus acidophtlus, Lactobacillus delbrueckii, and Lactobacillus leichmannii failed to grow in semisynthetic media similar to those used for vitamin assay with other lactic acid bacteria, even though all of the then known B vitamins were added. Since that time oleic acid (Will...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1940
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.39.3.273-285.1940