Description

Agar is a polysaccharide complex obtained through bleaching and hot water extraction of agarocytes from the red alga Rhodophyceae, found in the Pacific and Indian Oceans and in the Sea of Japan. The genera Gelidium, Acanthopeltis, Ceramium, Pterocladia and Gracilaria predominate in agar production.

Agar is composed of about 70% agarose and 30% agaropectin.

Agarose:

A neutral gelling fraction which consists of a linear polymer of alternating D-galactose and 3,6-anhydrogalactose units.

Agaropectin:

A non-gelling fraction which consists of 1,3-glycosidically linked D-galactose units, some of which are sulfated at position 6.

Agar-A is bacteriology grade agar of highest quality.

Specifications

Appearance	White to light cream powder
Particle Size	95% passes 60 mesh sieve
Moisture	12% or less
Ash	6.5% or less
Heavy Metals	≤20 ppm
Arsenic	≤3 ppm
Lead	≤5 ppm
Mercury	≤1 ppm
Cadmium	≤1 ppm
pH in Gel	6.0-7.5 (1.5% sol)
Turbidity	6 NTU or less (Hach, 1.5% sol)
Colorimetry	(n m u 450)
Gel Strength	600-900 g/cm² (Nikan, 1.5% sol)
Gel Point	32-38℃ (1.5% sol)
Melting Point	80-90℃ (1.5% sol)
Microbiological Analysis
Total Plate Count	<5000/g
Coliforms	Absent
Staphylococci	Absent
Salmonella	Absent
Storage	R.T. Protect from moisture

Documents

INFO

COA

SDS

Agar A