https://www.selleckchem.com/pr....oducts/dl-thiorphan.
The aim of this study was to investigate the inhibitory effect of non-precursors amino acids (histidine, leucine, proline and methionine) which have advantages of safety, inexpensiveness and high standardization on the formation of β-carbolines in roast beef patties and glucose/creatine/creatinine/tryptophan model system, and the possible pathway of inhibition by monitoring the scavenging of free radicals by electron paramagnetic resonance (EPR) spectroscopy and the consumption of tryptophan by HPLC in a glucose/tryptophan model sy