Tryptone is the assortment of peptides formed by the digestion of casein by the protease trypsin.
Tryptone is commonly used in microbiology to produce Lysogeny broth for the growth of E. coli and other microorganisms. It provides a source of amino acids for the growing bacteria.
Salmon Protein Hydrolysate is a high quality source of peptides and free amino acids. The product is manufactured by controlled enzymatic hydrolysis of salmon tissue. Peptone from is well suited for the growth of Bacillius, Escherichia, yeasts etc.The effectivity can be proved with addition of yeast extract.
兩種含不同的養分( peptides or free amino acids)，不建議互換
Wiki and Sigma