Stuart Transport Medium (Transport Medium, Stuart) M306
Intended use
Recommended for the preservation and transportation of Neisseria species and other fastidious organisms from the clinic
to laboratory.
Composition**
Ingredients Gms / Litre
Sodium glycerophosphate 10.000
Sodium thioglycollate 1.000
Calcium chloride 0.100
Methylene blue 0.002
Agar 3.000
Final pH ( at 25°C) 7.4±0.2
**Formula adjusted, standardized to suit performance parameters
Directions
Suspend 14.1 grams in 1000 ml double purified / distilled water. Heat to boiling to dissolve the medium completely. Dispense
into tubes with screw caps to give a depth of approximately 7 cm. Sterilize by autoclaving at 15 lbs pressure (121°C) for
15 minutes and after sterilization tighten the caps. Cool the tubes immediately in an upright position. Care should be taken
that the water is free from chlorine.
Principle And Interpretation
Stuart Transport media were originally designed by Stuart while studying Gonococci (6). Stuart et al (7) later on modified
the Stuart Medium for the transportation of gonococcal specimens for culturing. Ringertz included thioglycollate in the
Stuart Medium and omitted charcoal (5). The medium may be used for the transportation of many fastidious organisms
including anaerobes by maintaining the organism's viability without significant multiplication (4). Crooks and Stuart (1)
suggested the addition of Polymyxin B sulphate which facilitates the recovery of Neisseria gonorrhoeae.
This medium is a chemically defined, semisolid, non-nutrient medium which prevent microbial proliferation. Because off
this composition the medium ensures that microorganisms present are able to survive for a sufficiently long period of time.
The medium provides an adequate degree off anaerobiosis which can be monitored by means off the redox indicator
methylene blue. Prepared sterile medium will undergo a slight degree off oxidation at the upper periphery of the medium,
however, in the tube or vial exhibits a distinct blue colour throughout the medium, it should be discarded. Calcium chloride
along with sodium glycerophosphate act as good buffering agent and also maintains osmotic equilibrium in the medium.
Type of specimen
Clinical samples - Gonococcal specimens.
Specimen Collection and Handling:
For clinical samples follow appropriate techniques for handling specimens as per established guidelines (2,3).
After use, contaminated materials must be sterilized by autoclaving before discarding.
Warning and Precautions :
In Vitro diagnostic Use only. Read the label before opening the container. Wear protective gloves/protective clothing/
eye protection/ face protection. Follow good microbiological lab practices while handling specimens and culture.
Standard precautions as per established guidelines should be followed while handling clinical specimens. Safety
guidelines may be referred in individual safety data sheets.
Limitations :
1. Due to nutritional variations, some strains may show poor growth.
Please refer disclaimer Overleaf.
HiMedia Laboratories Technical Data
Performance and Evaluation
Performance of the medium is expected when used as per the direction on the label within the expiry period when stored at
recommended temperature.
P
Quality Control
Appearance
White to light blue coloured homogeneous free flowing powder
Gelling
Semisolid, comparable with 0.3% Agar gel.
Colour and Clarity of prepared medium
Colourless to whitish coloured slightly opalescent butt with upper 10% or less portion blue on standing.
Reaction
Reaction of 1.41% w/v aqueous solutions at 25°C. pH : 7.4±0.2
pH
7.20-7.60
Cultural Response
Cultural characteristics observed after an incubation at 35 - 37°C for 72 hours when subcultured from Stuart
Transport Medium.
Organism Growth Subculture
Medium
Haemophilus influenzae good Chocolate Agar
ATCC 49247 (incubated
in CO2 atmosphere)
Neisseria gonorrhoeae good Chocolate Agar
ATCC 19424 (incubated
in CO2 atmosphere)
Streptococcus pneumoniae good Tryptone Soya
ATCC 6303 Agar with 5%
sheep blood
Storage and Shelf Life
Store between 10-30°C in a tightly closed container and the prepared medium at 5-25°C. Use before expiry date on the
label. On opening, product should be properly stored dry, after tightly capping the bottle inorder to prevent lump formation
due to the hygroscopic nature of the product. Improper storage of the product may lead to lump formation. Store in dry
ventilated area protected from extremes of temperature and sources of ignition Seal the container tightly after use. Use
before expiry date on the label.
Product performance is best if used within stated expiry period.
Disposal
User must ensure safe disposal by autoclaving and/or incineration of used or unusable preparations of this product. Follow
established laboratory procedures in disposing of infectious materials and material that comes into contact with clinical
sample must be decontaminated and disposed of in accordance with current laboratory techniques (2,3).
Reference
1. Crookes E.M.L. and Stuart R.D., 1959, J. Path. Bact., 78:283.
2. Isenberg, H.D. Clinical Microbiology Procedures Handbook. 2nd Edition.
3. Jorgensen, J.H., Pfaller, M.A., Carroll, K.C., Funke, G., Landry, M.L., Richter, S.S and Warnock., D.W. (2015)
Manual of Clinical Microbiology, 11th Edition. Vol. 1.
4. Maintenance of Medical Bacteria, Vol. I, Williams and Wilkins, Baltimore.
5. Ringertz, 1960, Acta Pathol. Microbiol. Scand., 48:105.
6. Stuart, 1946, Glasgow Med. J. 27:131.
7. Stuart, Toshach and Patsula, 1954, Can. J. Public Health, 45:73.
Revision : 02 / 2018
Please refer disclaimer Overleaf.
HiMedia Laboratories Technical Data
In vitro diagnostic medical
IVD device
CE Marking
30°C Storage temperature
10°C
Do not use if package is
damaged
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User must ensure suitability of the product(s) in their application prior to use. Products conform solely to the information contained in
this and other related HiMedia™ publications. The information contained in this publication is based on our research and development
work and is to the best of our knowledge true and accurate. HiMedia™ Laboratories Pvt Ltd reserves the right to make changes to
specifications and information related to the products at any time. Products are not intended for human or animal or therapeutic use but
for laboratory,diagnostic, research or further manufacturing use only, unless otherwise specified. Statements contained herein should not
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