70166
Skim Milk Powder
suitable for microbiology
Sinônimo(s):
Milk powder fat-free
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About This Item
Código UNSPSC:
41106212
NACRES:
NA.74
Produtos recomendados
fonte biológica
bovine milk
Nível de qualidade
esterilidade
non-sterile
forma
powder
composição
total nitrogen (N), 4.7-6.0%
disponibilidade
not available in USA and Canada
Impurezas
≤1.5% lipid
≥50.0% reducing sugars (as lactose monohydrate)
resíduo de ignição
≤10%
perda
≤5% loss on drying
aplicação(ões)
food and beverages
pathogen testing
microbiology
Descrição geral
Skim Milk powder is used for the demonstration of coagulation and proteolysis of casein. Skim Milk is sometimes used as a complete medium or as an ingredient in other media used for the propagation of organisms occurring in milk products. The addition of skim milk to any nutrient-rich medium creates favorable conditions for the growth of organisms, which are encountered in milk. The number of bacteria isolated thus is more than the number of organisms isolated on a regular medium. Proteolytic bacteria hydrolyze casein to form soluble nitrogenous compounds indicated as a clear zone surrounding the colonies on the agar medium. Skim milk serves as a good source of casein
Aplicação
Skim Milk Powder is recommended for cultivation and enumeration of microorganisms encountered in dairy industry
Reconstituição
Mix the powder to a smooth paste with a small quantity of distilled water, then gradually add more distilled water until a 10% w/v mixture is obtained. This is equivalent to fresh milk, and may be sterilized by autoclaving for 5 minutes at 121 °C. Care should be taken not to overheat during sterilization, otherwise caramelization will occur.
Outras notas
Sales restrictions may apply
Código de classe de armazenamento
11 - Combustible Solids
Classe de risco de água (WGK)
WGK 1
Ponto de fulgor (°F)
Not applicable
Ponto de fulgor (°C)
Not applicable
Equipamento de proteção individual
Eyeshields, Gloves, type N95 (US)
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