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. Agar 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. After 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. Source: Gelidium marine algae Appearance: White to light tan, homogenous, free flowing powder. Melting Point (1.5%): 82-88C pH (1.5%): 6.0-8.0 Water: 11% Gel Point (1.5%): 34-38C Gel Strength (1.5%): 850-1200g/cm2 Idetification A: Passes Identification B: Passes Ash: 6.5% Acid-insoluble Ash: 0.5% Foreign Insoluble Matter: 10% Foreign Organic Matter: 1% Foreign Starch: None Detected Gelatin: None Detected Water Absorption: 75ml Arsenic: 0.0003% Lead: 0.001% Heavy Metals (Pb): 0.004% Microbiological Analysis: Total Plate Count: 5000cfu/g Coliforms: 3cfu/g E. coli: 0 cfu/g Salmonella: 0 cfu/g Yeast and Mold: 200cfu/g Storage: RT
CAS Number:
[9002-18-0]
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