Starter Pak No. 1 features a combination of yeast- and soy-based peptones. Three of the products in this pack have been ultra-filtered to reduce endotoxin levels. The yeast products add a mixture of peptides, amino acids, carbohydrates (simple and complex), nucleosides, and vitamins to any medium formulation. Starter Pak No. 1 provides conveniently packaged, 100-g, non-GMP samples of these peptones that are best suited for use in human and animal health applications and contains:
• Difco TC Yeastolate UF and Bacto TC Yeastolate—these peptones are ideal for CHO-based applications of biotherapeutic monoclonal antibodies and recombinant proteins
• Difco Yeast Extract UF and Bacto Yeast Extract, Technical—these peptones support optimal growth of many microbial species for a variety of human and animal health vaccines
• Difco Phytone Supplement, UF—this enzymatic digest of soy is an excellent, nutritious source of carbohydrates and is used in mammalian cell culture. This peptone works well alone and when blended with yeast-based peptones.

Our Starter Paks provide conveniently packaged samples of the peptones most commonly used in mammalian cell culture and microbial fermentation bioproduction processes. Starter Paks are tailored for specific applications, including the production of monoclonal antibodies, recombinant proteins, and vaccines.