The agar liquid turns into a gel and sets at around 35 degrees. Its viscosity suddenly increases near 40 degrees. When acid is added to the liquid and heated, the agar breaks down and the liquid ...
29, No. 4 (Oct., 1921), pp. 390-407 (18 pages) In agar culture mediums containing 0.1% agar, the gel, composed of colloidal particles in a state of equilibrium, resists the penetration of oxygen and ...
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