This study aims to use some strains (Corynebacterium glutamicum, Lactobacillus bulgaricus, and Brevibacterium linens for the production of some amino acids (lysine, methionine, threonine, arginine, tyrosine, aspartic acid, glutamic acid, alanine, and proline) on synthetic fermentation media under different conditions (incubation periods; incubation temperatures; pH values; media volume and differe...