Determination of amino acid ratios in natural products by micellar electrokinetic chromatography |
| |
Authors: | E Sko?ir M Pro?ek |
| |
Institution: | (1) Laboratory of Food Chemistry, National Institute of Chemistry, Hajdrihova 19, 61000 Ljubljana, Slovenia |
| |
Abstract: | Summary Separation of dansyl and di-dansyl derivatives of amino acids present in natural products (corn seed flour, wheat flour fraction
gliadine) is described. Problems with coelution of derivatization by-products and reagent with some dansyl amino acids (DNS-AA)
were solved. A preconcentration step after derivatization of real sample is described. DNS-AA peak areas for different varieties
of corn seed flour were compared. Di-dansyl histidine is not separated from di-dansyl lysine and didansyl tyrosine. Additional
separation mechanisms have to be introduced to achieve separation of these three species. |
| |
Keywords: | Micellar electrokinetic chromatography Dansylated amino acids Foodstuffs Wheat and corn seed flour |
本文献已被 SpringerLink 等数据库收录! |