The Yeast Extracts collection at BVV features high-purity, autolyzed yeast derivatives designed to accelerate microbial and mycological growth. Yeast Extract is a powerhouse nutrient, providing a rich profile of B-complex vitamins, amino acids, and organic nitrogen that are often missing from standard malt or dextrose bases.
In professional mycology and research labs, Yeast Extract is the gold standard for "supercharging" Liquid Cultures (LC) and specialized agar recipes. Its high solubility ensures a clear medium, which is critical for the early detection of contamination and monitoring mycelial density. Whether you are conducting fastidious microbial research or scaling a commercial mushroom farm, BVV provides consistent, lab-grade Yeast Extract in quantities ranging from individual jars to bulk sizes. Based in Naperville, Illinois, we ensure your facility stays productive with rapid, reliable shipping across the Midwest and East Coast.
What is Yeast Extract used for in microbiology?
Yeast Extract is a concentrated source of water-soluble nutrients, including B-vitamins, amino acids, and minerals. It is used as a supplementary nutrient in culture media to promote the growth of microorganisms that require more than just a simple carbohydrate source.
How does Yeast Extract benefit Liquid Cultures (LC)?
In liquid cultures, Yeast Extract provides the micronutrients necessary for rapid mycelial expansion. Adding even a small amount (0.5g to 2g per liter) can significantly reduce colonization times and increase mycelial density.
Is Yeast Extract the same as Nutritional Yeast?
No. Nutritional yeast is typically inactivated whole yeast cells. Laboratory-grade Yeast Extract is "autolyzed," meaning the cell walls have been broken down and removed, leaving only the highly soluble, nutrient-rich internal components.
What is the recommended ratio for Agar recipes?
For standard mycological agar and liquid culture recipes add 2 grams of yeast extract per liter of water. The Yeast Extract acts as a growth stimulant alongside the primary sugar source.
Will Yeast Extract cloud my media?
High-purity Yeast Extract is designed for high solubility. While it will add a light amber color to your media, it should remain transparent, allowing for clear visual inspection of cultures.
Is your Yeast Extract vegan-friendly?
Yes. Yeast Extract is derived entirely from yeast cells (fungi) and contains no animal-derived components, making it an ideal nitrogen and vitamin source for vegan laboratory protocols.
How should I store dry Yeast Extract?
Yeast Extract is extremely hygroscopic, meaning it will pull moisture from the air and turn into a sticky paste if exposed. Always keep the container tightly sealed in a cool, dry place.
What is the shelf life of Yeast Extract?
When stored correctly in an airtight container, dry Yeast Extract has a shelf life of approximately 2-3 years. If it begins to clump significantly or develops an off-odor, its effectiveness may be compromised.
Does Yeast Extract assist in bacterial culturing?
Absolutely. It is a staple ingredient in many bacterial media, such as LB (Lysogeny Broth) and Terrific Broth, providing the essential growth factors required for high-density bacterial cultures.