Tyrosine Powder

Tyrosine Powder

enough to dissolve tyrptophane and tyrosine?
Someone knows how to dissolve the Amino Acids such as tyrosine and tryptophan? using water? or solvents? I bought the powdered amino acids and the need to dissolve to add to my agar (to provide amino acids for bacteria).
The temperature dependence of the fluorescence and phosphorescence [...]