Peptone

Difco™ Casamino Acids, vitamin assay

Excellent supplement for media formulations where nitrogen requirements are minimal, including diphtheria toxin production. Gibco™ Bacto™ Casamino Acids is an animal-origin, acid hydrolysis of casein having low sodium chloride and iron concentrations.

Beef Extract Powder

Beef Extract Powder is a meat extract dried into a powder. This nutritional supplement provides a mixture of peptides, individual amino acids, nucleotides, organic acids, minerals, and vitamins. Additionally, due to differences in the process, Beef Extract Powder has a different molecular weight...

Peptone Preview Pak

The Peptone Preview Pak features our wheat, cotton, soy, and yeast peptones and provides unique nutritional profiles compared to other cell culture supplements.

Gelysate™ Peptone

Gelysate Peptone is a pancreatic digest of gelatin, derived from porcine animal origin (AO) sources. Gelatin hydrolysate is high in proline residues. Gelysate Peptone is deficient in carbohydrates and is characterized by low cystine, methionine, and tryptophan content.

Difco™ Casein Digest

Difco Casein Digest is an animal origin (AO) enzymatic digest of casein with different enzymatic digestion conditions than other casein digests in our portfolio, such as Bacto Casitone and Bacto Tryptone.

Bacto™ Beef Extract, desiccated

Dried form beef extract is used to replace infusions of meat. Gibco™ Difco™ Bacto™ Dehydrated Culture Media: Desiccated Dried Beef Extract is part of a selection of dehydrated media and ingredients.