title: Comparison of stationary phases in reversed-phase TLC for correlation between structure and biological response of probiotics.
abstract: A series of C16,C18 and C20 fatty acids and their ethyl esters and alcohols were investigated as possible stationary phases in reversed-phase TLC for the correlation between structure and biological response (antistaphylococcal activity). Ten probiotics (omego-amino acids and their L-histidine dipeptides) were used as the biologically active compounds. The mobile phase was 70% acetone in water. The best correlations were obtained with hexadecanoic acid (palmitic acid) or cis9,cis-12,cis-15-octadecatrienoic acid, 1-hexadecanol or cis-9-octadeconol, and ethyl hexadecanoate for the fatty acids, their alcohols, and their ethyl esters, respectively. Among all compounds, the following relation was obtained: fatty acids = alcohols greater than ethyl esters greater than white paraffin oil.
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D002855:Chromatography, Thin Layer / Q000379:methods; D013210:Staphylococcus / Q000187:drug effects; D013329:Structure-Activity Relationship
chemical_list: D000900:Anti-Bacterial Agents