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
Recommended Products
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
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
11 - Combustible Solids
wgk_germany
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificates of Analysis (COA)
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