Plot No. C40, Road No. 21Y, MIDC, Wagle Industrial Estate,
Thane(W)-400604, MH, India.
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Anaerobic HiVeg™ Agar w/o Dextrose and Eh Indicator
For the isolation and identification of anaerobic pathogens and for studies of haemolytic activity of Clostridia, Streptococci and other anaerobic organisms.
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Intended Use
Recommended for the isolation and identification of anaerobic pathogens and for the studies of haemolytic activity of Clostridia, Streptococci and other anaerobic organisms.
Composition
| Ingredients | g/L |
|---|---|
| HiVeg™ hydrolysate | 20.000 |
| Sodium chloride | 5.000 |
| Sodium thioglycollate | 2.000 |
| Sodium formaldehyde sulphoxylate | 1.000 |
| Agar | 15.000 |
| Final pH (at 25°C) | 7.2±0.2 |
Formula adjusted, standardized to suit performance parameters
Directions
Suspend 43.0 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
Anaerobic HiVeg™ Agar without dextrose and methylene blue (Eh indicator) is used for studies of haemolytic activity of Clostridia, Streptococci and other anaerobes (1). For isolation or cultivation of the highly fermentative butyric types, 1% dextrose may be added prior to sterilization. These media contain sodium thioglycollate and sodium formaldehyde sulphoxylate which provides adequate anaerobiosis. HiVeg™ hydrolysate provides nitrogen and carbon source, long chain amino acids, vitamins and other essential nutrients while sodium chloride maintains osmotic equilibrium. For isolation or cultivation of the highly fermentative butyric types, 1% dextrose may be added prior to sterilization. Anaerobic HiVeg™ Agar w/o Dextrose and Eh Indicator, HiVeg™ is prepared by using vegetable peptones in place of animal based peptones which make the media free of BSE/TSE risks.
For haemolytic tests anaerobic blood agar plates may be prepared in one of the following ways:
- Sterile blood in about 0.7 ml amount and small inoculum may be mixed with 25-50 ml of cooled agar and mixture is poured into the Petri plate filling it up to 3/4. After solidification the lid is replaced with Brewer Anaerobic Petri plate cover.
- An ordinary sterile Blood Agar plate (made from Blood Agar Base or Tryptone Soya Agar) may be streaked with a culture. Melted and cooled Anaerobic Agar without Dextrose is then poured over the Blood Agar to provide the proper depth. After solidification the lid is replaced with anaerobic Petri plate cover.
The anaerobic cover should not rest on the Petri plate bottom: its inner ridge should seal the agar, and the medium within the ridge should not touch the cover at any point. The medium should be cherry red in colour after addition of blood.
Type of specimen
Please add specimens
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
- The anaerobic cover should not rest on the Petri plate bottom: its inner ridge should seal the agar, and the medium within the ridge should not touch the cover at any point.
- The medium should be cherry red in colour after addition of blood.
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: Yellow to light amber coloured clear to slightly opalescent gel forms in Petri plates
Reaction: Reaction of 4.3% w/v aqueous solution at 25°C. pH: 7.2±0.2
pH: 7.00-7.40
Cultural Response
Culture characteristics observed under anearobic condition after incubation at 35-37°C for 18-48 hours.
| Organism | Inoculum (CFU) | Growth | Recovery |
|---|---|---|---|
| Clostridium butyricum ATCC 13732 | 50-100 | good-luxuriant | >=50% |
| Clostridium perfringens ATCC 12919 | 50-100 | good-luxuriant | >=50% |
| Clostridium sporogenes ATCC 11437 | 50-100 | good-luxuriant | >=50% |
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 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. 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 (2,3).
| Product Name | Anaerobic HiVeg™ Agar w/o Dextrose and Eh Indicator |
|---|---|
| SKU | MV229 |
| Product Type | HiVeg™ |
| Physical Form | Powder |
| Origin | Animal Free (Veg) |
| Packaging type | HDPE |
| References | 1. Vera J., 1942, J. Bact., 44:497. |
| Customized Product Available | No |
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