Agar-agar is widely used as a base of bacterium culture medium and microbe carrier in medicine, agriculture and bioengineering.
Gel /jelly strength : 800-1000g/cm2
Loss on drying :15% max
Residue after burning : 5% max
Hot water insoluble : 1% max
Starch assay : no blue color appearance
Appearance : from white to light yellow powder