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09182

Yeast Extract

Name: Yeast Extract
Brand: SIAL

from Saccharomyces cerevisiae, powder

Synonym(s):

YE, Baker’s yeast extract

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About This Item

CAS Number:

8013-01-2

UNSPSC Code:

41106212

eCl@ss:

42040000

EC Number:

232-387-9

NACRES:

NA.85

MDL number:

MFCD00132599

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Properties

biological source

Saccharomyces cerevisiae

Quality Level

200

sterility

non-sterile

assay

≤3% amino-nitrogen basis, ≥9% total nitrogen (N) basis

form

powder

shelf life

limited shelf life, expiry date on the label

composition

amino-nitrogen, ≤3% , total nitrogen (N), ≥9%

packaging

pkg of 1 kg, pkg of 5 kg

impurities

≤16% ash, ≤8% non-dissolved

loss

≤8% loss on drying

pH

6.5-7.5 (2% in H₂O)

solubility

H₂O: 2%, turbid, yellow

application(s)

food and beverages
microbiology

storage temp.

2-25°C

suitability

molds, yeasts

Description

General description

Yeast extract is an extract of autolyzed yeast cells. Yeast extract is a mixture of amino acids, peptides, water soluble vitamins and carbohydrates and can be used as additive for culture media. It is a non-animal and low endotoxin peptone suitable for use in fermentations media for cultivation and resuscitation of a large variety of fastidious microorganisms. It is rich in vitamins and other nutritive substances and so, recommended for general laboratory media

Application

Yeast extract is recommended for use in culture media and for the mass cultivation of various microorganisms. It provides multi-functional nutrient supplements that can also be used in microbial fermentation.

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Storage Class

11 - Combustible Solids

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Regulatory Information

动植物源性产品

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Articles

Base Ingredients of Microbiology Media

Culture media provides a habitat with suitable nutrients, energy sources, and certain environmental conditions for the growth of microorganisms. The components of the culture media range from simple sugars to peptones, salts, antibiotics, and complex indicators.

LsrR quorum sensing "switch" is revealed by a bottom-up approach.

Sara Hooshangi et al.

PLoS computational biology, 7(9), e1002172-e1002172 (2011-10-08)

Quorum sensing (QS) enables bacterial multicellularity and selective advantage for communicating populations. While genetic "switching" phenomena are a common feature, their mechanistic underpinnings have remained elusive. The interplay between circuit components and their regulation are intertwined and embedded. Observable phenotypes

The mitosis-to-interphase transition is coordinated by cross talk between the SIN and MOR pathways in Schizosaccharomyces pombe.

Samriddha Ray et al.

The Journal of cell biology, 190(5), 793-805 (2010-09-02)

The mechanisms that regulate cytoskeletal remodeling during the transition between mitosis and interphase are poorly understood. In fission yeast the MOR pathway promotes actin polarization to cell tips in interphase, whereas the SIN signaling pathway drives actomyosin ring assembly and

Global Trade Item Number

SKU	GTIN
W383503-1KG	04061836713010
W383503-SAMPLE	04061838193889
209716-25G	04061838770912
W383503-100G	04061838193872
09182-5KG-F	04061838653741
09182-1KG-F	04061838653734