Gibco™ Bacto™ Yeast Extract

• 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