HiEncap™ YT Broth (HiEncap™ 2 XT Broth)

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EC1251D
For the cultivation of recombinant strains of Escherichia coli.


Intended Use

Recommended for the cultivation of recombinant strains of Escherichia coli.

Composition

Ingredients Gms / Litre
Tryptone 16.000
Yeast extract 10.000
Sodium chloride 5.000
Final pH (at 25°C) 7.0±0.2

**Formula adjusted, standardized to suit performance parameters

Directions

Each capsule contains 15.5 grams of medium. Suspend 1 capsule in 500 ml (2 capsules in 1000 ml) distilled or purified water. Heat to boiling to dissolve the medium completely. Mix well and dispense into tubes or flasks as desired. Sterilize by autoclaving at 15 lbs pressure (121°C) for 15 minutes.

Principle And Interpretation

YT Broth is recommended for use in the cultivation of recombinant strains of Escherichia coli (1,5,6). It is also used in culture of E. coli strains for propagation of M 13 bacteriophages (1,2,6).

These media contain tryptone and yeast extract, which supply nitrogenous compounds, vitamin B complex and other essential nutrients and co-factors necessary for the luxuriant growth of recombinant E. coli and allows the bacteria to recover from the stress of transformation and grow well. Sodium chloride helps in maintaining isotonic conditions in the medium.

Type of specimen

Isolated Recombinant strain of Escherichia coli

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. 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
Gelatin capsule containing light yellow to beige coloured granular media

Quantity
Each capsule contains 15.5 grams of medium sufficient for 500ml media.

Color and Clarity of Prepared Medium
Light amber coloured clear solution in tubes.

Reaction
Reaction of 3.1% w/v aqueous solution at 25°C. pH: 7.0±0.2

Cultural Response

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

Organism Inoculum
(CFU)
Growth
Escherichia coli ATCC 23724 50-100 good-luxuriant
Escherichia coli ATCC 53868 50-100 good-luxuriant

Storage and Shelf Life

Store between 10-30°C in a tightly closed container and the prepared medium at 15-25°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 (3,4).

More Information
Product Name HiEncap™ YT Broth (HiEncap™ 2 XT Broth)
SKU EC1251D
Product Type HiEncap™
Physical Form Granulated Media in Gelatin Capsule
Origin Animal
Packaging type HDPE Jar
References 1. Miller H., 1987, Meth. Enzymol; 152, 145.
2. Ausubel F. M., Brent R., Kingston R. E., Moore B. D., Seidman J. G., Smith J. A. and Strohl K., 1994, Current Protocols in Molecular Biology, Vol. I, Current Protocols, New York, N.Y.
3. Davis L. G., Dibner M. D., Battey J. F., 1986, Basic Methods in Molecular Biology, Elsevier, New York, N.Y.
4. Sambrook J., Fritsch E. E. and Maniatis T., 1989, Molecular Cloning: A Laboratory Manual, 2nd Ed., Cold Spring Harbor Laboratory, Cold Spring Harbor, N.Y.
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