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G1890

Porcine Gelatin

from porcine skin, Type A, powder, gel strength ~300 g Bloom, suitable for electrophoresis and cell culture

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About This Item

CAS Number:
MDL number:
UNSPSC Code:
12352202
EC Number:
232-554-6
NACRES:
NA.75
Biological source:
Porcine skin
Form:
powder
Technique(s):
cell culture | mammalian: suitable, electrophoresis: suitable
Concentration:
70—90% Biuret
Mol wt:
50—100 kDa
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Product Name

Gelatin from porcine skin, powder, gel strength ~300 g Bloom, Type A, BioReagent, suitable for electrophoresis, suitable for cell culture

biological source

Porcine skin

Quality Level

sterility

sterile

type

Type A

product line

BioReagent

form

powder

mol wt

50—100 kDa

packaging

pkg of 1 kg, pkg of 100 g, pkg of 500 g

concentration

70—90% Biuret

technique(s)

cell culture | mammalian: suitable, electrophoresis: suitable

surface coverage

100‑200 μg/cm2

solubility

H2O: soluble 50 mg/mL, clear to hazy, faintly yellow

shipped in

ambient

storage temp.

room temp

General description

Gelatin from porcine skin is generated from the acidic digestion of collagen and is referred as type A. Porcine gelatin comprises majorly glycine, proline and hydroxyproline. Gelatin takes up random coil structure after digestion from the triple helical collagen. It differs from type B bovine gelatin at the N-terminal sequence.[1]

Application

Gelatin has been used in many applications. It has been used in coating cell culture to improve attachment of cells, being added to PCR to stabilize Taq DNA, as a blocking reagent in western blotting, ELISA, and immunochemistry, and as a component of media for species differentiation in bacteriology. As a biocompatible polymer, it has been used as a delivery vehicle for release of active biomolecules and in generation of scaffolds for tissue engineering applications. In the pharmaceutical industry, gelatin can be used as a suspending and encapsulating agent, among other applications. This product is recommended for use as a cell culture substratum at 1-5 μg/cm2 or 0.5-50 μg/mL. The optimal concentration does depend on cell type as well as the application and research objectives.

Features and Benefits

  • Sterile gelatin sourced from porcine skin.
  • Free from proteases.
  • In the form of gelatin powder for convenient and easy handling.
  • Versatile for use in cell culture and electrophoresis techniques.
  • Provides adequate surface coverage for various applications.

Preparation Note

This product is derived from porcine skin. Gelatin is soluble in hot than in cold water. It is practically insoluble in most organic solvents such as alcohol, chloroform, carbon disulfide, carbon tetrachloride, ether, benzene, acetone, and oils. The Bloom number, determined by the Bloom gelometer, is an indication of the strength of a gel formed from a solution of the known concentration. The Bloom number is proportional to the average molecular mass. Bloom numbers of porcine skin Gelatin vary from 90 to 300 g. This product has a gel strength of approximately 300.

Other Notes

Gelatin is a heterogeneous mixture of water-soluble proteins of high average molecular masses, present in collagen. Proteins are extracted by boiling the relevant skin, tendons, ligaments, bones, etc. in water. Type A gelatin is derived from acid-cured tissue. Type B is derived from lime-cured tissue.

Disclaimer

Dry gelatin, when stored in airtight containers at room temperature, will remain unchanged for many years. When heated at 100°C in the presence of air, it swells becomes soft and disintegrates to a carbonaceous mass with evolution of pyridine bases and ammonia.

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This Item
48722G9391G6144
technique(s)

cell culture | mammalian: suitable, electrophoresis: suitable

technique(s)

-

technique(s)

cell culture | mammalian: suitable

technique(s)

cell culture | mammalian: suitable

sterility

sterile

sterility

non-sterile

sterility

sterile

sterility

-

biological source

Porcine skin

biological source

Porcine

biological source

bovine skin

biological source

-

concentration

70—90% Biuret

concentration

-

concentration

-

concentration

-

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

form

powder

form

powder

form

powder

form

-


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Storage Class

11 - Combustible Solids

wgk

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)



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In vitro derivation of chondrogenic cells from human embryonic stem cells
Human Embryonic Stem Cell Protocols, 77(1), 317-331 (2009)
Graziano Martello et al.
The EMBO journal, 32(19), 2561-2574 (2013-08-15)
Self-renewal of pluripotent mouse embryonic stem (ES) cells is sustained by the cytokine leukaemia inhibitory factor (LIF) acting through the transcription factor Stat3. Several targets of Stat3 have previously been identified, most notably the reprogramming factor Klf4. However, such factors
Thermosensitive chitosan-gelatin-glycerol phosphate hydrogel as a controlled release system of ferulic acid for nucleus pulposus regeneration
Cheng YH, et al.
Biomaterials, 32(29), 6953-6961 (2011)



Global Trade Item Number

SKUGTIN
G1890-1KG04061835568505
G1890-100G04061835568499
G1890-500G04061835568512

Questions

1–10 of 10 Questions  
  1. For thick gelatin solutions >5%, how should they be sterilized? Does autoclaving have any impact on gelatin?

    1 answer
    1. Gelatin solutions may be sterilized by autoclaving at 121 °C, 15 psi for 30 minutes. Coated surfaces may also be sterilized by UV. Please see the link below to review additional protocol information at the link below:
      https://www.sigmaaldrich.com/technical-documents/protocol/cell-culture-and-cell-culture-analysis/3d-cell-culture/gelatin-solution-product

      Please see the following link to review the product datasheet:
      https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/product/documents/308/874/g1890pis.pdf

      Helpful?

  2. Hi, what is the appropriate way to sterlize a 0.1% gelatin solution, filtration through a 0.22 μm or to autoclave it? Thanks in advance.

    1 answer
    1. The reconstituted gelatin solution is recommended to be sterilized by autoclaving at 121 °C, 15 psi for 30 minutes.

      Helpful?

  3. Hello, could you please provide the phenylalanine content (mmol/g) and the number of reactive groups for your porcine gelatin, product G1890? Thank you!

    1 answer
    1. The phenylalanine content in this product has not been determined. According to published literature, Type A Gelatin contains 78-80 millimoles of free carboxyl groups per 100 g of protein.

      Helpful?

  4. How can I store a 0.2% gelatin solution in water (filtered through a 0.22 μm filter) for an extended period, and what are the suitable storage temperature and period?

    1 answer
    1. Gelatin-coated plates can be stored at 2 - 8°C for up to 4 weeks provided they are sealed well to prevent contamination and/or over-drying up of gelatin.

      Helpful?

  5. What is lysine amino acid composition of this gelain?

    1 answer
    1. The amino acid profile is not determined for this product on a lot-to-lot basis. However, historical data indicates a Lysine range of 4.1 - 5.2 % by weight.

      Helpful?

  6. What is the purity of this polymer?

    1 answer
    1. The protein content of this material ranges from 70 - 90%. This information is lot specific and reported in the Certificate of Analysis. Please see the link below to review a sample or lot specific Certificate:
      https://www.sigmaaldrich.com/product/sigma/g1890#product-documentation.

      Helpful?

  7. how many amine groups does Type A gelatin has

    1 answer
    1. The number of amine groups in G1890 is not determined.

      Helpful?

  8. What is the molecular weight of this Gelatin?

    What is the molecular weight of this Gelatin?

    1 answer
    1. The molecular weight of this product has not been evaluated, However, the molecular weight is closely related to the Bloom Number. The estimated ranges are as follows:
      Bloom Number Average Molecular Mass (Da)
      50−125 (Low Bloom) 20,000−25,000
      175−225 (Medium Bloom) 40,000−50,000
      225−325 (High Bloom) 50,000−100,000

      Please see the link below to review the general datasheet for Gelatin:
      https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/product/documents/333/625/g9382pis.pdf

      Helpful?

  9. COULD YOU PERHAPS PROVIDE THE NUMBER OF CARBOXYLIC ACID GROUPS IN MOL PER 100 G OF PROTEIN

    1 answer
    1. According to published literature, Type A Gelatin has 78-80 millimoles of free carboxyl groups per 100 g of protein. Please see the link below to review the full product datasheet:
      https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/product/documents/187/614/g6650-et-al-pis-ms.pdf

      Helpful?

  10. What is the molecular weight of gelatin from porcine skin, Type A?

    1 answer
    1. The Bloom number is proportional to the average molecular mass. Bloom numbers of porcine skin gelatin vary from 90 to 300 g. This product has a gel strength of approximately 300 g. Thus, the average molecular mass would be 50,000-100,000. Please review the Product Information Sheet for further information:

      https://www.sigmaaldrich.com/content/dam/sigma-aldrich/docs/Sigma/Product_Information_Sheet/g1890pis.pdf

      Helpful?

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