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Characterization of Saccharomyces Sp. through determination of amino acid profiles by capillary gas chromatography

โœ Scribed by Vasconcelos, A. M. P. ;Neves, H. J. Chaves Das


Publisher
John Wiley and Sons
Year
1985
Tongue
English
Weight
309 KB
Volume
8
Category
Article
ISSN
0935-6304

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โœฆ Synopsis


The Saccharomyces strains uvarum, montuliensis, bayanus, capensis and florentinus were grown in liquid media prepared from a 1% aqueous glucose solution to which 0.05% of ammonium sulfate or urea were added as the only nitrogen supply. The amino acids exuded during incubation were isolated by cation exchange and derivatized as the corresponding N,O-heptafluorobutyryl isopropyl esters. Separation was achieved on a highly deactivated glass capillary column coated with OV-101. A characteristic amino acid profile was obtained for each of the species studied, allowing the construction of a chemotaxonomic tree, on the basis of present or absent acids.


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