1.05391
Malt extract
suitable for microbiology
Synonym(s):
Malt extract, Malt extract powder
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About This Item
CAS Number:
MDL number:
UNSPSC Code:
41106212
EC Index Number:
232-310-9
NACRES:
NA.74
biological source
plant
Quality Level
form
powder
packaging
pkg of 500 g
storage condition
protect from light (Store dry and tightly closed)
color
brownish-yellow Powder
pH
4.8 (25 °C, 17 g/L in H2O, after autoclaving)
solubility
17 g/L
bulk density
590 kg/m3
application(s)
microbiology
storage temp.
15-25°C
Related Categories
General description
Malt extract is the water-soluble portion of malted barley. It contains a high content of reduced sugars and lesser nitrogenous constituents. The carbohydrates mainly comprise the disaccharide maltose and fractions of hexoses such as glucose and fructose, the disaccharide sucrose, and other carbohydrates. The nitrogenous components include peptides, amino acids, purines, and vitamins. Malt extract favors the sporulation of molds such as Aspergillus and Penicillium.
Application
Malt Extract is used as a nutritive substrate in mycological media for the propagation of yeasts and molds and test strains in vitamin assays.
Analysis Note
Appearance (color): brownish-yellow
Appearance (description): fine powder
Identity: passes test
pH-value (2 %; water): 4.5 - 6.0
Sulfated ash (800 °C): ≤ 3.0 %
Loss on Drying (105 °C): ≤ 6.0 %
Suitability for microbiology: passes test
Appearance (description): fine powder
Identity: passes test
pH-value (2 %; water): 4.5 - 6.0
Sulfated ash (800 °C): ≤ 3.0 %
Loss on Drying (105 °C): ≤ 6.0 %
Suitability for microbiology: passes test
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Regulatory Information
监管及禁止进口产品
Certificates of Analysis (COA)
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