* Gelatin
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Gelatin
Bacteriological [MB-G1659]
Protein partially hydrolyzed obtained from an alkaline hydrolysis of skin
and tissue in animal connector.
PACKAGE
Description |
Quantity |
Cat. No |
Gelatin Bacteriological |
500g |
MB-G1659 |
Gelatin Bacteriological |
1kg |
MB-G1659-1kg |
Gelatin Bacteriological |
5kg |
MB-G1659-5kg |
PHYSICO-CHEMICAL CHARACTERISTICS
Standard |
|
Solubility in water at 5% |
Complete |
Viscosity (6.66%-60¡É) |
17.0 – 22.0 |
Loss on drying |
¡Â 12.0% |
Ash |
¡Â 1.0% |
pH (2% solution) |
5.0 ¡¾ 0.1 |
INTERPRETATION
Gelatin Bacteriological partially hydrolyzed obtained from an alkaline
hydrolysis of skin and tissue in animal connector with high concentration of
proline and hydroxyproline and low cysteine and tryptophan content. It is also
free of carbohydrates. This peptone is suitable for preparing media for
microorganisms that are not particularly fastidious in their nutritional
requirements. The melting point of a 12% concentration of gelatin is between 28
and 30¡ÆC, allowing it to be used as a solidifying agent. Certain microorganisms
elaborate gelatinolytic enzymes (elaboration of gelatinases) which hydrolyze
gelatin, causing liquefaction of a solidified medium. Gelatin is also used as
nitrogen and amino acid source.
STORE
The powder is very hygroscopic. Store the powder at room temperature, in a
dry environment, in its original container tightly closed and use it before the
expiry date on the label or until signs of deterioration are evident.