Agar is a phycocolloid, water soluble polysaccharide, extracted from a group of red-purple marine algae (Class Rhodophyceae) including Gelidium and Gracilaria. Agar is normally used in final concentration of 1-2% for solidification of culture media. Agar are routinely used as a solidifying agent because of several facts like, good transparency to allow identification of colony type, consistent gelling (32°C-40°C) and melting (approximately 85°C) temperatures, free from toxic substances that inhibits bacterial growth etc.
Agar Agar is a gelling agent used in the preparation of culture media and other bacteriological applications. It is generally used in a concentration of 1 - 2% for microbiological culture media preparations
Agar Agar is a gelling agent used in the preparation of culture media and other bacteriological applications. It is generally used in a concentration of 1 - 2% for microbiological culture media preparations, 0.5% for motility testing and 0.1% maximum for aerobes and microaerophiles growth.
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