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Agar or agar-agar also known as "China grass" is a jelly-like substance, obtained from red algae. Agar is a mixture of two components: the linear polysaccharide agarose, and a heterogeneous mixture of smaller molecules called agaropectin. It forms the supporting structure in the cell walls of certain species of algae, and is released on boiling. These algae are known as agarophytes, and belong to the Rhodophyta (red algae) phylum. Agar has been used as an ingredient in desserts throughout Asia, and also as a solid substrate to contain culture media for microbiological work. Agar can be used as a laxative, an appetite suppressant, a vegetarian substitute for gelatin, a thickener for soups, in fruit preserves, ice cream, and other desserts, as a clarifying agent in brewing, and for sizing paper and fabrics. The gelling agent in agar is an unbranched polysaccharide obtained from the cell walls of some species of red algae, primarily from tengusa (Gelidiaceae) and ogonori (Gracilaria). For commercial purposes, it is derived primarily from ogonori. In chemical terms, agar is a polymer made up of subunits of the sugar galactose.
CAS Number: 9002-18-0
Agar Powder, FCC Specifications:
Maximum Limits
Arsenic (as As): 3 mg/kg
Ash (Acid-Insoluble): 0.5%
Ash (Total): 6.5%
Gelatin: To Pass Test
Heavy Metals (as Pb): 10 mg/kg
Insoluble Matter: 1.0%
Lead (Pb): 5 mg/kg
Loss on Drying: 20.0%
Starch: To Pass Test
Water Absorbtion: To Pass Test
Please contact us to request a Safety Data Sheet (SDS) and Certificate of Analysis (COA) for Agar Powder, FCC.
If you have questions about ordering Agar in bulk online here at LabAlley.com or would like to place an order, call 512-668-9918 or email customerservice@laballey.com to talk with an Agar Specialist. Lab Alley is a wholesale supplier and distributor of Agar based in Austin, Texas.
Spec/SDS
