Agar Agar Powder Bacteriological Grade I – HX-Media – Hexa Biotech
Storage and Shelf Life:- Hygroscopic; keep container tightly closed. Agar powder bacteriological grade store at temperatures below 30⁰C and dry place. Expected performance when stored at optimum conditions and within expiry date.
Agar powder bacteriological grade disposal:- To avoid the contamination or propagation of any hazardous microbes used, unusable or modified preparation of this product must be disposed after autoclaving or incineration after completion of task.
Quality Control:-
Appearance |
Cream colored homogeneous free flowing powder |
Solubility |
Soluble above 80-85 ℃, insoluble in cold water |
Clarity |
Clear to slight opalescent gel above 1.2 % concentration |
Dye diffusion |
18- 20 mm (at 1.5 %) |
Reaction of 2% |
6.5 – 7.5 at 27 ℃ |
Identification test |
Reddish to black colored when treated with iodine solution |
Gelling Temperature |
38-42 ℃ |
Melting range (2%) |
85 ℃ |
Water |
≤ 15% |
Calcium |
≤ 0.1 % |
Arsenic |
≤0.0003% |
Lead |
≤0.0001 % |
Total ash |
≤ 6.5% |
Test for Water absorption |
≤ 30 ml of water is absorbed by 2 g of agar |
Test for Starch |
No Formation of blue color on addition of iodine |
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