Agar, USP

Pharmaceutical Grade (USP) agar is a highly purified extract of select Gelidium marine algae, forming part of the cell wall, that gives excellent growth characteristics used in a wide variety of microbiological applications. \n\nAgar is a phycocolloid, a complex mixture of several sugar compounds that retains a gelatinous structure at room temperature after boiling. Bacteriological agar is purified by successive washings to remove or extensively reduce chemical contaminants, color and salts. \n\nAfter autoclaving, agar is a light amber and free of particulates, solidifying into a clear, firm gel and suitable for all molecular biology applications. Bacterial and phage growth (M13 and Lambda) is superior to standard microbiology grade agars.

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SPECIFICATIONS

Catalog Number

A0930-05

Size

250g

References

1. Falk, Bucca and Simmons, J. Bacteriology, 37: 121 (1939) 2. Hitchens and Leikind, J. Bacteriology, 37: 485 (1939) 3. Seip, In Fogg and Jones (ed), Proc. 8th Intl. Seaweed Symp. (1981) 4. United States Pharmacopeia, 8/14/12: Changed\nLead: (same/less than)0.001%\n-LP\n\n04/21/11- Added Identification a,b, matter, starch, gelatin, absorption, ash.\n-JE\n\n2/9/10: Changed\nDescription:\nGelidium based Drosophila agar is an inexpensive growth medium especially suited to the growth and nutrient requirements of Drosophila without the expense of bacteriological grades. This is a food grade agar which offers excellent clarity.\n-LP\n5/15/09-remove: To Pass USP24/NF19\n-add Exceed USP Specifications\n-DF\n\n04/07/05-Updated to read similar: A0930, -05.\n-Changed Appearance: White to cream colored powder\n-Changed pH (1.5%): 6.0-7.5\n-VV23: 1721,1897 (1990)