Agar (aus Red Alga Rhodophyceae), blassgelbes Pulver USP

Lieferant: MP Biomedicals

Synonyme: Agar Agar

ICNA0210026291EA 569 EUR
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Agar (aus Red Alga Rhodophyceae), blassgelbes Pulver USP
Agar

Agar is a polysaccharide complex extracted by bleaching and hot water treatment of agarocytes from the red alga Rhodophyceae, and usually consisting of the genera Gelidium, Acanthopeltis, Ceramium, Pterocladia and Gracilaria. The algae are typically found in the Pacific and Indian Oceans and in the Sea of Japan. It is primarily composed of two different units: Agarose and Agaropectin; Agarose is a neutral gelling component which is composed of a linear polymer of alternating D-galactose and 3,6-anhydrogalactose units. Agaropectin is a non-gelling component which consists of D-1,3-glycosidically linked D-galactose units, some of which are sulfated at the 6th position.
Agar is typically used in (According to the Merck Index): Substitute for gelatin, isinglass, etc. in making emulsions including photographic, gels in cosmetics, and as thickening agent in foods especially confectionaries and dairy products; in meat canning; in production of medicinal encapsulations and ointments; as dental impression mold base; as corrosion inhibitor; sizing for silks and paper; in the dyeing and printing of fabrics and textiles; in adhesives. In nutrient media for bacterial cultures.


  • USP Grade
  • Culture Media
  • Presentation: Pale Yellow Powder
  • Agar is strongly hydrophilic and can slowly absorb about 20 times its weight of cold water, swelling in the process. Hot water is usually necessary to solubilize agar. Insoluble in alcohols.
  • Storage temperature: Room temperature

Lagertemperatur: Raumtemperatur
MDL: MFCD00081288
CAS-Nummer: 9002-18-0
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Spezifikation Testergebnisse

Identity Test A Passes
Identity Test B Passes
Microbial Limits (Salmonella) Negative
Water ≤20%
Total Ash (dw) ≤6.5%
Acid Insoluble Ash ≤0.5%
Foreign Organic Matter ≤1.0%
Foreign Insoluble Matter ≤1.0%
Arsenic ≤3 ppm
Lead ≤10ppm
Heavy Metals ≤40ppm
Foreign Starch Passes
Gelatin Passes Test
Water Absorption Passes Test

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