Standard Nutrient HiVeg™ Agar

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MV877
A general utility medium for cultivation and enumeration of not particularly fastidious microorganisms.


Standard Nutrient HiVeg™ Agar

Standard Nutrient HiVeg Agar is used as a general utility medium for cultivation and enumeration of not particularly fastidious microorganisms.

Composition

Ingredients Grams/Litre
HiVeg peptone No. 1 10.0
HiVeg extract 10.0
Sodium chloride 5.0
Agar 20.0

Final pH (at 25°C) 7.6 ± 0.2

** Formula adjusted, standardized to suit performance parameters.

Product Profile

Vegetable based (Code MV) Animal based (Code M)
MV877 M877
HiVeg peptone No. 1 Lean meat
HiVeg extract Beef extract

Recommended for

Cultivation and enumeration of not particularly fastidious microorganisms.

Reconstitution 45.0 g/l
Quantity on preparation (500g) 11.11 L
pH (25°C) 7.6 ± 0.2
Supplement None
Sterilization 121°C / 15 minutes.
Storage Dry Medium - Below 30°C, Prepared Medium 2 - 8°C.

Directions

Suspend 45 grams in 1000 ml distilled water. Heat to boiling to dissolve the medium completely. Sterilize by autoclaving at 15 lbs pressure (121°C) for 15 minutes.

Principle and Interpretation

Standard Nutrient HiVeg Agar is prepared by using HiVeg peptone No. 1 and HiVeg extract which are of vegetable origin and free from BSE/TSE risks. Standard Nutrient HiVeg Agar is the modification of Standard Nutrient Agar which is formulated as per the recommendation of APHA as a general purpose medium for the cultivation of non-fastidious organisms from water and wastewater, dairy and food products (1, 2).

HiVeg peptone No. 1 provides amino acids and large chain peptides. HiVeg extract provides water soluble substances like carbohydrates, vitamins, organic nitrogen compounds and salts. Sodium chloride maintains osmotic equilibrium.

Quality Control

Appearance of powder
Yellow coloured, may have slightly greenish tinge, homogeneous, free flowing powder.

Gelling
Firm, comparable with 2.0% Agar gel.

Colour and Clarity
Light amber coloured, clear to slightly opalescent gel forms in petri plates.

Reaction
Reaction of 4.5% w/v aqueous solution is pH 7.6 ± 0.2 at 25°C.

Cultural Response

Cultural characteristics observed after an incubation at 35-37°C for 18 - 24 hours.

Organisms (ATCC) Inoculum (CFU) Growth Recovery
Escherichia coli (25922) 102-103 good-luxuriant >70%
Pseudomonas aeruginosa (27853) 102-103 good-luxuriant >70%
Salmonella serotype Typhi (6539) 102-103 good-luxuriant >70%
Staphylococcus aureus (25923) 102-103 good-luxuriant >70%
Streptococcus pneumoniae (6303) 102-103 good-luxuriant >70%
More Information
Product Name Standard Nutrient HiVeg™ Agar
SKU MV877
Product Type HiVeg™
Physical Form Powder
Origin Animal Free (Veg)
Packaging type HDPE
References 1. Greenberg A. E., Trussell R. R. and Clesceri L. S. (Eds.), 1985, Standard Methods for the Examination of Water andWastewater, 16th ed., APHA, Washington, D.C.2.Speck M. (Ed.), 1984, Compendium of Methods for the Microbiological Examination of Foods, 2nd ed., APHA, Washington,D.C.3.Pelczar, Chan and Kreig, 1986, Microbiology, 5th ed., McGraw-Hill Book Company, New York.
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