medium a-23 , which was devised for r. perfoetens , contained salts , 0.0002 % nicotinamide and calcium d-pantothenate , 0.00001 % p-aminobenzoic acid , 0.044 % l-tryptophan , 0.09 % l-glutamic acid , and 0.1 % of the other 13 amino acids listed above .
C0061472
glutamic acid
C0002520
amino