Peptone is an enzymatic digest of protein used to cultivate non-fastidious organisms, producing low-level growth. Deficient in carbohydrates, cystine and tryptophan. Appearance: Light tan, homogenous, free flowing powder pH: 7.0 �0.5 Amino Nitrogen: 6% Solubility (2%): Light yellow, clear, complete Total Nitrogen: 10% Reducing Sugars: Negative Undigested Protein: Negative Proteoses: Negative Nitrites: Negative Tryptophan: Negative Ash: 10% Moisture: 10% Typical Amino Acid Profile: Ala 8.5%, Arg 7.8%, Asp 6.2%, Cys 0.2%, Glu 9.8%, Gly 19.4%, His 0.8%, Ile 1.4%, Leu 2.9%, Lys 3.8%, Met 1.0%, Phe 1.9%, Pro 12.2%, Ser 3.7%, Thr 1.8%, Trp 0.05%, Tyr 0.7%, Val 2.2% Growth Supporting Properties (Agar/ Broth Formulations): Satisfactory Certificate of Origin: The raw animal products and enzymes, porcine tissue, used in the manufacturing of Peptone is derived from meat materials originating in the USA. During processing of the product, a batch is heated to a minimum of 80 �C.