Agar (C12H18O9)n Agar Agar
Agar Agar is a gelatinous substance derived from seaweed. Historically and in a modern context, it is chiefly used as an ingredient in desserts throughout Japan, but in the past century has found extensive use as a solid substrate to contain culture medium for microbiological work. The gelling agent is an unbranched polysaccharide obtained from the cell membranes of some species of red algae, primarily from the genuses Gelidium and Gracilaria, or seaweed (Sphaerococcus euchema). Commercially it is derived primarily from Gelidium amansii.
Agar Agar is a gelatinous substance derived from seaweed. Historically and in a modern context, it is chiefly used as an ingredient in desserts throughout Japan, but in the past century has found extensive use as a solid substrate to contain culture medium for microbiological work. The gelling agent is an unbranched polysaccharide obtained from the cell membranes of some species of red algae, primarily from the genuses Gelidium and Gracilaria, or seaweed (Sphaerococcus euchema). Commercially it is derived primarily from Gelidium amansii.
Agar (agar agar) can be used as a laxative, a vegetarian gelatin substitute, a thickener for soups, in jellies, ice cream and Japanese desserts such as anmitsu, as a clarifying agent in brewing, and for paper sizing fabrics.
Agar Powder | ||||
Item | Specifications | |||
Appearance | White to light yellow | |||
Gel Strength (Gr/cm2) | 700-1300 g/cm2 | |||
Loss on drying | ≤11% | |||
Hot water insoluble | ≤1% | |||
Starch assay( add two drops of iodine solution) | no blue color appearance | |||
Ash | ≤3.0% | |||
Residue after burning | 5.0% max. | |||
Water Absorbent | 75ml max. | |||
Sieve residue (sieve-60) | 95% passed | |||
Melting temperature | ≥ 80°C | |||
Gelatinization temperature | ≥ 30 °C | |||
Heavy metal | ||||
Arsenic(As) | <0.0001% | |||
Lead (Pb) | <0.004% |
Agar Strip | ||||
Item | Specifications | |||
Appearance | White to light yellow | |||
Gel Strength (Gr/cm2) | ≥400 g/cm2 | |||
Loss on drying | ≤20% | |||
Hot water insoluble | ≤1% | |||
Starch assay( add two drops of iodine solution) | no blue color appearance | |||
Ash | ≤5.0% | |||
Residue after burning | 5.0% max. | |||
Water Absorbent | 75ml max. | |||
Sieve residue (sieve-60) | 95% passed | |||
Melting temperature | ≥ 80°C | |||
Gelatinization temperature | ≥ 30 °C | |||
Heavy metal | ||||
Arsenic(As) | <0.0001% | |||
Lead (Pb) | <0.004% |
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