AGAR AGAR TYPE-I (PTC Grade)

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.