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C7821

Sigma-Aldrich

Curdlan

from Alcaligenes faecalis, ≥98% (TLC), solid

Synonym(s):

β-1,3-Glucan hydrate

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About This Item

CAS Number:
54724-00-4
MDL number:
MFCD00212920
UNSPSC Code:
12352200
NACRES:
NA.77

Product Name

Curdlan from Alcaligenes faecalis,

form

solid

Quality Level

200

storage temp.

2-8°C

General description

Curdlan is an insoluble natural polymer with linear structure mainly produced by Alcaligenes faecalis. It is a dietary fiber with gelatin properties.

Application

Curdlan from Alcaligenes faecalis has been used:
  • for the stimulation of carp macrophages for regulation of differentially expressed genes
  • to stimulate human intestinal epithelial cells for cytokine secretion
  • to study its effect on transcriptional responses of inflammation/respiratory burst-associated genes in mouse alveolar macrophages by customized reverse transcription (RT)-PCR based arrays
  • as a substrate in β-1,3–1,4-Glucanase activity assay

Biochem/physiol Actions

Curdlan is a (1,3)-β-glucan. It is a pathogen-associated molecular-pattern (PAMP) recognized by the receptor dectin-1. Activation of dectin-1, together with TLR2/TLR6, promotes signaling resulting in the production of pro-inflammatory cytokines, thus inducing inflammation.
Curdlan is used as a food additive in the food industry. It improves the elasticity and reduces the embrittling tendency of hydroxyapatite/chitosan scaffold, which aids in bone regeneration.

Preparation Note

For gelation at 70 °C, the concentration of the sodium hydroxide should be 0.01 M.
This product is tested for solubility in 0.1N sodium hydroxide at a concentration of 9.8 - 10.2 mg/mL. Heating and/or sonication are typically required for solubilization. This product is not sterile. For use in cell culture, stock solutions should be filter sterilized prior to use.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
0000231174
0000221976
0000212873
0000231174
0000221976

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  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  4. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  5. Do you test to confirm that product C7821, Curdlan, has (1,3)-β-glucan linkages?

    We do not test to confirm that C7821, Curdlan, has (1,3)-β-glucan linkages on a lot to lot basis. However, we have verified product authenticity in the past. Our manufacturing procedure is reported in literature as yielding Curdlan. In addition, C13-NMR, chromatography, and IR analyses results compared to literature and commercial control product proved that product is a (1,3)-β glucan polymer.

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"Reference Module in Food Science (2020)
Applications of natural polymer-based hydrogels in the food industry
"Handbook of Poylmer-Liquid Interaction Parameters and Solubility Parameters ", 357-410 (2020)
K N Masihi et al.
International journal of immunopharmacology, 19(9-10), 463-468 (1998-06-24)
The effects of glucan-based immunomodulators curdlan sulfate (CRDS) and lentinan on cytokine production stimulated by lipopolysaccharide (LPS) in bacillus Calmette-Guerin (BCG)-primed mice were investigated. Pretreatment with CRDS or lentinan before LPS administration induced a striking inhibition of up to 89%
Jules Petit et al.
Frontiers in immunology, 10, 280-280 (2019-03-14)
Immune-modulatory effects of β-glucans are generally considered beneficial to fish health. Despite the frequent application of β-glucans in aquaculture practice, the exact receptors and downstream signalling remains to be described for fish. In mammals, Dectin-1 is a member of the
Chunju An et al.
The Journal of biological chemistry, 284(29), 19716-19726 (2009-06-03)
Serine proteinases in insect plasma have been implicated in two types of immune responses; that is, activation of prophenoloxidase (proPO) and activation of cytokine-like proteins. We have identified more than 20 serine proteinases in hemolymph of the tobacco hornworm, Manduca
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