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Fluorescein-5-isothiocyanate (FITC “Isomer I”) – comjugated goat IgG fraction to ß-galactosidase (no cross to E. coli) and buffer salts

Lyophilized fluorescein-5-isothiocyanate (FITC “Isomer I”)-conjugated rabbit IgG fraction to bovine IgG (whole molecule) and buffer salts.

Lyophilized fluorescein-5-isothiocyanate (FITC “Isomer I”)-conjugated rabbit IgG fraction to mouse IgG (whole molecule) and buffer salts.

• Bacto Proteose Peptone No. 3 is a member of the Bacto Proteose Peptones, which are enzymatic digests of protein
• Studies show that no single peptone is the most suitable nitrogen source for every microbiological application
• These findings led to the development of Bacto Proteose Peptone, Bacto Proteose Peptone No. 2, and Bacto Proteose Peptone No. 3. Bacto Proteose Peptone No. 4 is a spray-dried version of Bacto Proteose Peptone
• Bacto Proteose Peptone No. 3 is used in preparing microbiological and mammalian cell culture media
• Store in cool, dry conditions in well-sealed containers at 2°C to 25°C

• Bacto Tryptone is an animal origin (AO) pancreatic digest of casein
• It is included in standard methods manual applications and is listed in the Reagent section of the United States Pharmacopeia as meeting the specifications for a pancreatic digest of casein, a component in many of the media listed
• The nutritional profile of this supplement is unique in that it provides a range of nutrients
• Customers have used this supplement in fermentation applications and shown that it successfully supports the growth of many bacterial species during the production of animal health vaccines
• This includes Escherichia coli, and Fusobacterium and Agrobacterium species when used together with Bacto Yeast Extract
• Store in cool, dry conditions in well-sealed containers at 2° to 25°C

Features:

• Pancreatic digest of casein
• Developed while investigating a peptone particularly suitable for the elaboration of indole by bacteria
• Animal origin nutritional supplement

Applications of Bacto Tryptone include:

• Works well in fermentation applications
• Use with common organisms such as Escherichia coli, as well as uncommon organisms such as the diatom Nitzschia laevis

• Bacto Yeast Extracts are concentrates of the water-soluble portion of autolyzed Saccharomyces cerevisiae cells, derived from primary grown baker’s yeast
• These animal origin-free products are suitable for use as multi-functional nutritional supplements in mammalian cell culture, microbial fermentation, and insect cell culture applications
• Yeast extract provides essential water-soluble vitamins, amino acids, peptides, and carbohydrates to any medium formulation
• Bacto Yeast Extract is one of the most complete and versatile fermentation supplements available
• It is an important ingredient for the microbiological assay of vitamins
• Yeast extract is also of value in the assay of antibiotics
• B factor, a growth substance necessary for the production of rifampin in a Nocardia species, can be isolated from yeast extract
• Bacto Yeast Extract, Technical, was developed to provide products priced for the biotechnology market with acceptable clarity and growth-promoting characteristics
• Store in cool, dry conditions in well-sealed containers at 2°C to 25°C

Related yeast extract products include:

• Gibco Yeast Extract – Developed to provide a product for the biotechnology/pharmaceutical market with acceptable clarity and growth-promoting characteristics. Media formulations containing yeast extract are specified in standard methods for various applications.
• Difco Yeast Extract UF – Ultra-filtered and specifically designed for mammalian cell culture applications. With its low endotoxin level and high content of naturally occurring B vitamins, it can be used effectively to reduce the need for fetal bovine serum. It has an endotoxin level of less than or equal to 500 EU/g
• Difco Yeast Extract Low-Dusting (LD) – Designed to limit the amount of dust generated compared to other spray-dried yeast extracts.