Sabouraud Maltose HiVeg™ Agar

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SKU:
MV062
For propagation of yeasts and moulds, particularly the parasitic fungi concerned with skin and scalp lesions.


Intended Use

Recommended for propagation of yeasts and moulds, particularly the parasitic fungi concerned with skin and scalp lesions.

Composition**

Ingredients g/L
Maltose 40.000
HiVeg® peptone No. 4 10.000
Agar 15.000
Final pH (at 25°C) 5.6±0.2

**Formula adjusted, standardized to suit performance parameters

Directions

Suspend 65.0 grams in 1000 ml purified / distilled water. Heat to boiling to dissolve the medium completely. Sterilize by autoclaving at 15 lbs pressure (121°C) for 15 minutes. Cool to 45-50°C. Mix well and pour into sterile Petri plates.

Principle And Interpretation

Fungi were among the first microorganisms recognized because some of the fruiting structures, such as the mushrooms, are large enough to be seen without a microscope. Fungi can be grouped simply on the basis of morphology as either yeasts or moulds (1). Sabouraud Maltose Agar was formulated by Sabouraud (2) and is used for the isolation and differentiation of yeast and moulds. (3,4,5). Sabouraud Maltose HiVeg® Agar is same as Sabouraud Maltose Agar except that the animal based peptones are completely replaced with vegetable peptones to avoid the BSE/TSE risks associated with animal peptones.

HiVeg® peptone No. 4 provides nitrogen, vitamins, minerals, amino acids and growth factors. Maltose provides an energy source for the growth of microorganisms. The low pH favours fungal growth and inhibits contaminating bacteria from clinical specimens (1). The acid reaction of the final medium is inhibitory to a large number of bacteria making it particularly useful for cultivating fungi and aciduric microorganisms. For isolation of fungi from contaminated specimens, a selective medium should be inoculated simultaneously. Incubate cultures for 4 to 6 weeks before reporting as negative.

Type of specimen

Clinical samples

Specimen Collection and Handling:

After use, contaminated materials must be sterilized by autoclaving before discarding.

Warning and Precautions :

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 specimens. Safety guidelines may be referred in individual safety data sheets.

Limitations :

  • 1. Further biochemical and serological tests must be carried out for further identification.

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.

Quality Control

Appearance
Cream to yellow homogeneous free flowing powder

Gelling
Firm, comparable with 1.5% Agar gel

Colour and Clarity of prepared medium
Light amber coloured clear to slightly opalescent gel forms in Petri plates

Reaction

Reaction of 6.5% w/v aqueous solution at 25°C. pH : 5.6±0.2

pH
5.40-5.80

Cultural Response

Cultural characteristics observed after an incubation at 25 - 30°C for 48 - 72 hours.(Incubate Trichophyton species for for upto 7 days)

Organism Inoculum
(CFU)
Growth Recovery
#Aspergillus brasiliensis
ATCC 16404 (00053*)
50-100 good-luxuriant
Candida albicans
ATCC 10231 (00054*)
50-100 good-luxuriant >=70%
Escherichia coli ATCC
25922 (00013*)
50-100 good-luxuriant
(Inhibited on
media with
lower pH)
>=70%
Lactobacillus casei
ATCC 9595
50-100 good-luxuriant >=70%
Saccharomyces cerevisiae
ATCC 9763 (00058*)
50-100 good-luxuriant >=70%
Trichophyton rubrum
ATCC 28191
50-100 good-luxuriant

Key: *Corresponding WDCM numbers. #- Formerly known as Aspergillus niger

Storage and Shelf Life

Store between 10-30°C in a tightly closed container and the prepared medium at 20-30°C. Use before expiry date on the label. On opening, product should be properly stored dry, after tightly capping the bottle in order 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. 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 sample must be decontaminated and disposed of in accordance with current laboratory techniques (6,7).

More Information
Product Name Sabouraud Maltose HiVeg™ Agar
SKU MV062
Product Type HiVeg™
Physical Form Powder
Origin Animal Free (Veg)
Packaging type HDPE
References 1. Murray P. R., Baron J. H., Pfaller M. A., Jorgensen J. H. and Yolken R. H., (Ed.), 2003, Manual of Clinical Microbiology,8th Ed., American Society for Microbiology, Washington, D.C.
2.Sabouraud R., 1892, Ann. Dermatol. Syphil. 3 : 1061.
3.Davidson and Dowding, 1932, Arch. Dermatol. Syphilol. 26:660.
4.Davidson, Dowding and Buller. 193
2.Can. J. Res. 6:1.
5.Frank L. S., 1932, Arch. Dermatol. Syphilol., 26: 457
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