Amino Acid Nutrition of Lactobacillus Arabinosus
نویسنده
چکیده
The growth factors required by Lactobacillus arabinosus 17-5 have been studied extensively by Snell and Wright (I), Isbell (2), and Lewis (3). Investigation of the nitrogen requirement has been limited. Hydrolyzed casein has been found to supply the essential nitrogen when supplemented with tryptophane and cystine. Glutamic acid has been found essential (4), and quantitative levels have been determined. Recently, the amino acids essential for the growth of Lactobacillus casei (5) have been determined qualitatively. The present investigation of the nitrogen requirements of Lactobacillus arabinosus has led to the discovery of the several amino acids necessary for the growth of this bacterium.
منابع مشابه
THE ROLE OF VITAMIN B,j IN THE SYNTHESIS OF TRYP- TOPHANE FROM INDOLE AND ANTHRANILIC ACID BY LACTOBACILLUS ARABINOSUS”
Lactobacillus arabinosus has the ability to synthesize several amino acids when adequate quantities of vitamin Bg are included in the medium (1, 2) ; however, the requirement of this organism for tryptophane is apparently not affected by the addition of vitamin 136 (2). Earlier studies showed that indole and anthranilic acid have appreciable tryptophane activity for L. arabinosus (3-7) but not ...
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Lactobacillus arabinosus has the ability to synthesize several amino acids when adequate quantities of vitamin Bg are included in the medium (1, 2) ; however, the requirement of this organism for tryptophane is apparently not affected by the addition of vitamin 136 (2). Earlier studies showed that indole and anthranilic acid have appreciable tryptophane activity for L. arabinosus (3-7) but not ...
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