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Soyabean HiVeg™ Medium (Tryptone Soya HiVeg™ Broth)

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MV011
A general purpose medium used for cultivation of A wide variety of microorganisms and sterility testing of moulds and lower bacteriA as per various Pharmacopoeia.

Intended Use

Recommended as general purpose medium for cultivation of fastidious and non-fastidious microorganisms from various samples and for sterility testing of moulds and lower bacteria.

Composition

Ingredients g/L
HiVeg® hydrolysate 17.000
Soya peptone 3.000
Sodium chloride 5.000
Dextrose (Glucose) 2.500
Dipotassium hydrogen phosphate 2.500
Final pH (at 25°C) 7.3±0.2

Formula adjusted, standardized to suit performance parameters

Directions

Suspend 30.0 grams in 1000 ml purified/ distilled water. Heat if necessary to dissolve the medium completely. Mix well and dispense in tubes or flasks as desired. Sterilize by autoclaving at 15 lbs pressure (121°C) for 15 minutes.

Note: If any fibres are observed in the solution, it is recommended to filter the solution through a 0.22 micron filter to eliminate the possibility of presence of fibres.

Principle And Interpretation

Soyabean HiVeg® Medium is prepared by completely replacing animal peptones with vegetable peptones to avoid BSE/TSE risks associated with animal peptones. Soyabean Casein Digest Medium is recommended by various pharmacopoeias as a sterility testing and as a microbial limit testing medium (1,2,3). This medium is a highly nutritious medium used for cultivation of a wide variety of organisms (4).

The combination of HiVeg® hydrolysate and soya peptone makes this medium nutritious by nitrogenous and carbonaceous compounds, long chain amino, vitamins and other essential growth nutrients required by microorganisms. Dextrose and dipotassium phosphate serves as the carbohydrate source and the buffer in the medium. Sodium chloride maintains the osmotic balance of the medium.

Type of specimen

Pharmaceutical samples.

Specimen Collection and Handling

For pharmaceutical samples, follow appropriate techniques for sample collection, processing as per pharmaceutical guidelines (1,3). 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. Biochemical characterization is necessary to be performed on colonies from pure cultures for further identification.
  2. This medium is general purpose medium and may not support the growth of fastidious organisms.

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

Colour and Clarity of prepared medium: Light yellow coloured clear solution without any precipitate.

Reaction: pH of 3.0% w/v aqueous solution at 25°C (after sterilization). pH: 7.3±0.2

pH: 7.10-7.50

Stability test: Light yellow coloured clear solution without any precipitation or sedimentation at room temperature for 7 days

Growth promoting properties

Clearly visible growth of microorganism comparable to that previously obtained with previously tested and approved lot of medium occurs at the specified temperature for not more than the shortest period of time specified inoculating not more than 100 cfu (at 30-35°C for 18-24 hours for bacteria and 5days for fungal) Growth promotion is carried out as per USP/EP/BP/JP/IP.

Organism Inoculum (CFU) Growth Incubation period Incubation temperature
Salmonella Typhimurium ATCC 14028 (00031*) 50-100 luxuriant 18-24 hrs 30-35 °C
Salmonella Abony NCTC 6017 (00029*) 50-100 luxuriant 18-24 hrs 30-35 °C
^Pseudomonas paraeruginosa ATCC 9027 (00026*) 50-100 luxuriant 18-24 hrs 30-35 °C
Streptococcus pneumoniae ATCC 6305 50-100 luxuriant 18-24 hrs 30-35 °C
Staphylococcus aureus subsp. aureus ATCC 6538 (00032*) 50-100 luxuriant 18-24 hrs 30-35 °C
Escherichia coli ATCC 25922 (00013*) 50-100 luxuriant 18-24 hrs 30-35 °C
Escherichia coli ATCC 8739 (00012*) 50-100 luxuriant 18-24 hrs 30-35 °C
** Bacillus spizizenii ATCC 6633 (00003*) 50-100 luxuriant 18-24 hrs 30-35 °C
$ Kokuria rhizophila ATCC 9341 50-100 luxuriant 18-24 hrs 30-35 °C
Pseudomonas aeruginosa ATCC 27853 (00025*) 50-100 luxuriant 18-24 hrs 30-35 °C
Candida albicans ATCC 10231 (00054*) 50-100 luxuriant <=5 d 20-25 °C
Staphylococcus aureus subsp. aureus ATCC 25923 (00034*) 50-100 luxuriant 18-24 hrs 30-35 °C

Sterility Testing-Growth promotion +Validation

Organism Inoculum (CFU) Growth Incubation period Incubation temperature
Staphylococcus aureus subsp. aureus ATCC 6538 (00032*) 50-100 luxuriant <=3 d 20-25 °C
# Aspergillus brasiliensis ATCC 16404 (00053*) 50-100 luxuriant <=5 d 20-25 °C
Candida albicans ATCC 2091 (00055*) 50-100 luxuriant <=5 d 30-35 °C
Staphylococcus aureus subsp. aureus ATCC 25923 (00034*) 50-100 luxuriant <=3 d 20-25 °C
Escherichia coli ATCC 25922 (00013*) 50-100 luxuriant <=3 d 20-25 °C
^Pseudomonas paraeruginosa ATCC 9027 (00026*) 50-100 luxuriant <=3 d 20-25 °C
** Bacillus spizizenii ATCC 6633 (00003*) 50-100 luxuriant <=3 d 20-25 °C
Salmonella Typhimurium ATCC 14028 (00031*) 50-100 luxuriant <=3 d 20-25 °C
Salmonella Abony NCTC 6017 (00029*) 50-100 luxuriant <=3 d 20-25 °C
Streptococcus pneumoniae ATCC 6305 50-100 luxuriant <=3 d 20-25 °C
Escherichia coli ATCC 8739 (00012*) 50-100 luxuriant <=3 d 20-25 °C
Pseudomonas aeruginosa ATCC 27853 (00025*) 50-100 luxuriant <=3 d 20-25 °C
$ Kokuria rhizophila ATCC 9341 50-100 luxuriant <=3 d 20-25 °C

Key: (*) Corresponding WDCM numbers,
(#) Formerly known as Aspergillus niger
(**)Formerly known as Bacillus subtilis subsp. spizizenii
(^)Formerly known as Pseudomonas aeruginosa
($)Formerly known as Micrococcus luteus

Storage and Shelf Life

Store between 10-30°C in a tightly closed container and the prepared medium at 15-30°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 (5,6).

References

  1. Indian Pharmacopoeia, 2022, Indian Pharmacopoeia Commission, Ministry of Health and Family Welfare Government of India.
  2. MacFaddin J. F., 1985, Media for Isolation-Cultivation-Identification-Maintenance of Medical Bacteria, Vol. 1, Williams & Wilkins, Baltimore, M.d.
  3. The United States Pharmacopeia, 2019, The United States Pharmacopeial Convention, Rockville, MD.
  4. Forbes B. A., Sahm D. F. and Weissfeld A. S., 1998, Bailey & Scotts Diagnostic Microbiology, 10th Ed., Mosby, Inc. St. Louis, Mo.
  5. Isenberg, H.D. Clinical Microbiology Procedures Handbook 2nd Edition.
  6. 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.
More Information
Product Name Soyabean HiVeg™ Medium (Tryptone Soya HiVeg™ Broth)
SKU MV011
Product Type HiVeg™
Physical Form Powder
Origin Animal Free (Veg)
Packaging type HDPE
References 1. MacFaddin J. F., 1985, Media for Isolation-Cultivation-Identification-Maintenance of Medical Bacteria, Vol. 1, Williams& Wilkins, Baltimore, M.d.
2.The United States Pharmacopeia, 2018, USP 41/NF36, The United States Pharmacopeial Convention, Rockville, MD.
3.Indian Pharmacopeia, 2018, Govt. of India, Ministry of Health and Family Welfare, New Delhi, India.
4.Forbes B. A., Sahm D. F. and Weissfeld A. S., 1998, Bailey & Scotts Diagnostic Microbiology, 10th Ed., Mosby, Inc. St.Louis, Mo.
5.Isenberg, H.D. Clinical Microbiology Procedures Handbook. 2nd Edition.
6.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.
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