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