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Stuart Transport Medium

microbial medium
Chinese Name:Stuart運送培養基
Product No.:HB8552
Specification:250g/500g
Product Price:
Product Use:Used in the transport and preservation of specimens for the cultivation of diverse organisms such as gonococci, streptococci, enterobacteria, etc.
Remarks:

Technical Data:

Approximate Formula:

Ingredients

gm/liter

Sodium Glycerophosphate

10.0

Cysteine hydrochloride

0.5

Sodium Thioglycolate

0.5

Calcium chloride

0.1

Agar

5.0

Final pH 7.4±0.2 at 25 

*Adjusted and/or supplemented as required to meet performance criteria.

Directions:

Suspend16.1gof the medium in one liter of distilled water or deionized water. Mix well and heat with frequent agitation. Sterilize in an autoclave at 121 ° C(15 lbs) for 15 minutes.

Principle and Interpretation:

The ability of Stuart transport medium to maintain the viability of gonococci during transport led other researchers to explore its use with a variety of specimens. This medium is currently recommended for throat, vaginal and wound samples.

This medium is chemically defined, semisolid, non-nutrient medium which prevent microbial proliferation. Because of its composition the medium ensures that microorganisms present are able to survive for a sufficiently long period of time. Calcium chloride along with sodium glycerophosphate acts as good buffering agent and also maintains osmotic equilibrium in the medium.

Appearance:

Dehydrated medium is a free-flowing white powder. The prepared medium is a kind of milky white transparent gel.

Precautions:

This medium is for laboratory use only. Dried medium which is past shelf life, caking or color variation cannot be used.

Storage conditions and Shelf life:

Stuart Transport Medium must be stored tightly capped in the original container at 5-30°C. The dehydrated medium has a shelf life of 3 years from date of manufacturing. Prepared medium may be stored, out of direct light at 2-8°C.

Quality control:

Cultural characteristics observed after incubation at 20 -25°Cfor 48 hours. Remove swabs, streak on prepared blood agar plates and incubate appropriately.

Microorganism

Strains Number

Growth

Remarks

Shigella flexneri

ATCC 12022

luxuriant

/

Salmonella typhimurium

ATCC 14028

luxuriant

/

Streptococcus pyogenes

ATCC 19615

luxuriant

/


Reference:

1. Stuart, 1946,GlasgowMed. J. 27:131.

2. Stuart, Toshach and Patsula, 1954,Can.J. Public Health, 45:73.

3. Ringertz, 1960, Acta Pathol. Microbiol. Scand., 48:105.

4. Maintenance of Medical Bacteria, Vol. I, Williams and Wilkins, Baltimore


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