琼脂

(C₁₂H₁₈O₉)_n

232-658-1

MFCD00081288

42040102

NA.21

琼脂是一种从海藻(Rhodophyceae)中获得的亲水性胶体。它可溶于沸水，而这对微生物学领域具有重要意义。
Agar chemically consists of two fractions: agarose, a neutral polymer of high gel strength and agaropectin, a non-gelling fraction with sulfated β-1,3-glycosidically linked D-galactose units.

Agar has been used:

• as a reference standard commercial agar to compare the physio-chemical, gelling properties of alkali-treated agar from Gracilaria tenuistipitata
• as a component in the seed germination medium and rooting medium for commercially available soybean (Glycine max (L.) Merr) seeds
• as a component of growth media for B. subtilis mutant strain MTC871 based biofilm colonies
• as a bacteriological agar component to prepare half strength Murashige-Skoog (MS 50%) medium for Echinocactus platycanthus seeds culture

琼脂已用于植物生长培养基中。
常见的工作浓度是： 6-12g/L。

Agar is gel forming polysaccharide used as a gelling and stabilizing agent. Its serves as a cryoprotectant in processed foods, pharmaceuticals and cosmetics products.

通用琼脂。

200

algae (Rhodophyceae)

powder

cell culture | mammalian: suitable
cell culture | plant: suitable

congealing temperature <38 ℃ (1.5% in H₂O)

microbiology tested

agriculture
microbiology

room temp

5, 10, 25 kg in poly drum
1 kg in poly bottle
100, 500 g in poly bottle

11 - Combustible Solids

WGK 1

Eyeshields, Gloves, type N95 (US)