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71238

Natriumalginat aus Braunalgen

BioReagent, suitable for immobilization of micro-organisms

Synonym(e):

Algin, Alginsäure Natriumsalz aus Braunalgen

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PackungsgrößeSKUVerfügbarkeitPreis
50 g
Warenkorb auf Verfügbarkeit prüfen
CHF 49.00
250 g
Warenkorb auf Verfügbarkeit prüfen
CHF 187.00
1 kg
Warenkorb auf Verfügbarkeit prüfen
CHF 617.00

Über diesen Artikel

CAS-Nummer:
UNSPSC Code:
12352201
NACRES:
NA.25
MDL number:

CHF 49.00


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biological source

algae (brown)

Quality Segment

product line

BioReagent

form

powder

ign. residue

≤30%

loss

≤15% loss on drying

color

white to light beige

pH

6.0-8.0 (10 mg/mL in H2O)

suitability

in accordance for gelation test, suitable for immobilization of micro-organisms

storage temp.

room temp

SMILES string

[Na+].[O-]C(=O)C1O[C@H]([C@H]([C@H]([C@@H]1O)O)O)O

InChI

1S/C6H10O7.Na/c7-1-2(8)4(5(10)11)13-6(12)3(1)9;/h1-4,6-9,12H,(H,10,11);/q;+1/p-1/t1-,2-,3-,4?,6+;/m0./s1

InChI key

MSXHSNHNTORCAW-MPGIDXPLSA-M

Application

Alignat, ein Molekül mit einer kolloidalen Polyuronsäurestuktur, das zur Gelbildung in der Lage ist, wird bei der Herstellung von kolloidalen, biologisch abbaubaren Strukturen wie Gelen, Biofilmen, Kügelchen, Nanoteilchen und Mikrokapseln, die für Anwendungen von gelbasierten Trennungstechnologien bis hin zur Arzneimittelabgabe und Zellkonservierung geeignet sind, eingesetzt.

Other Notes

Eine geradkettige, hydrophile, kolloidale Polyuronsäure aus Glucuron- und Mannuronsäureresten.
Für einen umfassenden Überblick über unser vielfältiges Angebot an Polysacchariden für Ihre Forschung empfehlen wir Ihnen den Besuch unserer Seite zur Kategorie Kohlenhydrate.
Immobilisierung von Zellen[1] oder Enzymen; die Alginat-Matrix kann durch die Zugabe eines Chelatbildners verflüssig werden, wodurch die Rückgewinnung von anwachsenden Kolonien, ohne ihr anhaltendes Wachstum zu beeinträchtigen, ermöglicht wird.

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Dieser Artikel
A2033180947PHR1471
biological source

algae (brown)

biological source

algae (brown)

biological source

algae (marine)

biological source

-

Quality Level

100

Quality Level

200

Quality Level

200

Quality Level

300

form

powder

form

powder

form

powder

form

-

suitability

in accordance for gelation test, suitable for immobilization of micro-organisms

suitability

-

suitability

-

suitability

-

storage temp.

room temp

storage temp.

2-8°C

storage temp.

-

storage temp.

2-30°C

product line

BioReagent

product line

-

product line

-

product line

-


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Lagerklasse

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)



Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number

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Global Trade Item Number

SKUGTIN
W292818-4KG-K04061837517990
W292818-20KG-K04061837862205
W292818-1KG-K04061837862199
W292818-SAMPLE-K04061837518003
1570406-3AMP04061838743084
589585010004065267180823
589585200004065267180847
279544-1L04061826211366
279544-2L04061826211373
100996250004022536014050
100996602504022536014081
100997602504022536014166
100997250004022536014135
100996919004022536014104
100997400004027269677541

Questions

1–10 of 10 Questions  
  1. What species of brown algae is this derived from? E.g. laminaria hyperborea or macrocystis pyrifera or something else?

    1 answer
    1. This product is extracted from a seaweed from Norway. Further taxonomic classification is not determined.

      Helpful?

  2. Is the sodium alginate sterile (sterile filtrated)?

    1 answer
    1. The product is provided as a powder. It is not sterilized as part of the manufacturing process, and we do not make any claims that it is sterile.

      Helpful?

  3. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

      Helpful?

  4. What is the density of alginate 71238?

    1 answer
    1. The density of this product is not determined.

      Helpful?

  5. Can this product be used for gastronomic application, if not can you recommend high G alginate that can be.

    1 answer
    1. Alginic acid sodium salt from brown algae is not recommended for gastronomic applications. No alginic acid products are offered that are suitable for this type of use.

      Helpful?

  6. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

  7. What is the viscosity of the alginate?

    1 answer
    1. The viscosity is not determined for this product on a lot specific basis. However, the viscosity is generally between 100 - 200 mPa sec for a 1% solution at 20°C. Please note that the viscosity is not a listed test specification and has not been validated.

      Helpful?

  8. What is the viscosity of this product?

    1 answer
    1. The viscosity of product is not tested on a lot specific basis, however historical values indicate a range of 100 - 200 cP at 1% in water, 20 °C.

      Helpful?

  9. WHAT IS THE MANNURONIC ACID TO GULURONIC ACID (M/G) RATIO OF THIS PRODUCT (71238)?

    1 answer
    1. The guluronic acid content in this product is approximately 70 % and the mannuronic acid content is approximately 30 %

      Helpful?

  10. What is the average molecular weight?

    1 answer
    1. The molecular weight is approx. 100,000 - 200,000 g/moL.

      Helpful?

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