The particle size of this material is not determined.
Fortfahren mit
S9765
Stärke, löslich
ACS reagent
Starch, soluble
1 of 2 reviewers received a sample product or took part in a promotion
Synonym(e):
Lösliche Stärke
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| Packungsgröße | SKU | Verfügbarkeit | Preis |
|---|---|---|---|
| 100 g | Warenkorb auf Verfügbarkeit prüfen | € 38,10 | |
| 250 g | Warenkorb auf Verfügbarkeit prüfen | € 84,30 | |
| 500 g | Warenkorb auf Verfügbarkeit prüfen | € 155,00 | |
| 1 kg | Warenkorb auf Verfügbarkeit prüfen | € 229,00 |
Über diesen Artikel
Lineare Formel:
(C6H10O5)n
CAS-Nummer:
UNSPSC Code:
12352201
PubChem Substance ID:
EC Number:
232-679-6
NACRES:
NA.21
MDL number:
Technischer Dienst
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Unterstützung erhaltenbiological source
potato
Quality Level
grade
ACS reagent
form
powder
ign. residue
≤0.4%
color
white
pH
5.0-7.0 (25 °C, 2% in solution)
mp
256 -258 °C ((493 - 496 °F ))
solubility
H2O: passes test
suitability
passes test for sensitivity as indicator
storage temp.
room temp
SMILES string
O1[C@@H]([C@@H]([C@H]([C@@H]([C@H]1CO)O)O)O)O[C@@H]2[C@H](O[C@@H]([C@@H]([C@H]2O)O)O)CO
InChI
1S/C12H22O11/c13-1-3-5(15)6(16)9(19)12(22-3)23-10-4(2-14)21-11(20)8(18)7(10)17/h3-20H,1-2H2/t3-,4-,5-,6+,7-,8-,9-,10-,11+,12-/m1/s1
InChI key
GUBGYTABKSRVRQ-ASMJPISFSA-N
Application
Lösliche Stärke hat folgende Anwendungen:
- als Referenzstandard für den Amyloglucosidase-Aktivitätsassay
- als Substrat für Amylase-Aktivität in Homogenaten des Verdauungstrakts von Fischen
- als Bestandteil einer Nährlösung in simulierten Redox-Modellen des menschlichen Darms
Biochem/physiol Actions
Von Pflanzen synthetisierte Stärke ist ein Polymer aus Amylose und Amylopektin. Amylose ist ein lineares Glucose-Polymer, Amylopektin hingegen ist ein stark verzweigtes Polymer. Stärke ist ein erneuerbarer und biologisch abbaubarer Polymer und wird bei der Entwicklung von Stärke-Nanopartikeln (SNP) verbreitet verwendet. Stärke hat flexible strukturelle Eigenschaften und wird für pharmazeutische Anwendungen modifiziert und funktionalisiert. Stärke besteht aus rasch verdaubarer Stärke (RDS), langsam verdaubarer Stärke (SDS) und resistenter Stärke (RS). Resistente Stärke verbessert das metabolische Profil, Darmbakterien und besitzt anti-diabetische Funktion. Resistente Stärke hat einen niedrigen glykämischen Index und unterstützt das Gewichtsmanagement. Unter Umständen ist sie wirksam bei der Behandlung von Stoffwechselkrankheiten und Dickdarmkrebs.[1]
Preparation Note
Als Best Practice hat es sich bewährt, aus 2 g Stärke und ein wenig kaltem Wasser eine Paste herzustellen und dann unter Rühren zu 100 ml kochendem Wasser hinzuzufügen.
Es sollte keine bemerkbare Veränderung an der Opaleszenz auftreten.
Es sollte keine bemerkbare Veränderung an der Opaleszenz auftreten.
Other Notes
Für einen umfassenden Überblick über unser vielfältiges Angebot an Polysacchariden für Ihre Forschung empfehlen wir Ihnen den Besuch unserer Seite zur Kategorie Kohlenhydrate.
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Dieser Artikel | |||
|---|---|---|---|
| grade ACS reagent | grade - | grade - | grade pharmaceutical primary standard |
| biological source potato | biological source - | biological source potato | biological source - |
| solubility H2O: passes test | solubility 50 g/L | solubility - | solubility - |
| Quality Level 200 | Quality Level 100 | Quality Level 200 | Quality Level - |
| form powder | form - | form powder | form - |
| suitability passes test for sensitivity as indicator | suitability - | suitability passes test for test of sensitivity | suitability - |
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Lagerklasse
11 - Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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Global Trade Item Number
| SKU | GTIN |
|---|---|
| S9765-100G | 04061835549924 |
| S9765-1KG | 04061835549931 |
| S9765-500G | 04061835549955 |
| S9765-250G | 04061835549948 |
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Could you please provide the particle size information for this product?
1 answer-
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What is the particle size of the S9765 starch product?
1 answer-
The particle size of this product is not determined.
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Can I use this for diastase activity in honey
1 answer-
This product has not been evaluated for use as a substrate for diastase activity in honey. It is advisable to refer to the method to determine if there are specific requirements for the starch to be purchased. If the method being referred to specifies a soluble starch solution should be prepared, this is the item mentioned.
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I aim to evaluate the degradation of starch by some of our bacterial strains using spectrophotometry. What is the impact of autoclaving starch. Does autoclaving cause partial degradation ? Is the starch concentration the same before and after autoclaving?
1 answer-
This product has not undergone any functional assays to determine the impact of autoclaving on the overall starch structure. Consulting scientific literature is recommended for specific guidance on conducting this study. For example, please see the citation below where researchers determine the effect of autoclaving on the morphological properties of starch.
Babu, A. S., & Parimalavalli, R. (2014). Effect of Autoclaving on Functional, Chemical, Pasting and Morphological Properties of. JOURNAL OF ROOT CROPS, 39(1), 78–83. Retrieved from https://www.journal.isrc.in/index.php/jrc/article/view/187
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
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.pdfHelpful?
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
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
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How is the starch soluble? Is it a product of hydrolysis of poppy potato starch?
1 answer-
This product originates from Solanum tuberosum. Differences in the structure of amylose and amylopectin allow it to be soluble.
See the link below for a publication that may be of interest: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6049785/#:~:text=Amylopectin%20from%20normal%20potato%20starch,in%20cold%20water%20%5B8%5D.The preparation instructions are as follows:
- Prepare a paste of 2g of the starch with a little cold water
- Add to it 100ml of boiling water with stirring.
The solution should be no more than opalescent and on cooling it should remain a liquid and not increase in opalescence.Please see the link below for a sample Certificate of Origin:
https://www.sigmaaldrich.com/US/en/coo/undefined/S9765/SLCF7026Helpful?
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what is the purity of this starch
1 answer-
This product is not tested for purity. It is primarily used as an enzyme substrate. The residue on ignition would offer some indication of the level of impurity, however this is not directly correlated. See the link below for a sample Certificate of Analysis:
https://www.sigmaaldrich.com/certificates/sapfs/PROD/sap/certificate_pdfs/COFA/Q14/S9765-BULKSLCQ5576.pdfHelpful?
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is this product suiable as the indicator for determine iodine?
1 answer-
It has not been determined if this product is suitable as an indicator to determine iodine. While it may be suitable, product number 85642 has been tested for use in this application. See the link below for a sample CofA for review. https://www.sigmaaldrich.com/certificates/sapfs/PROD/sap/certificate_pdfs/COFA/Q14/85642-BULKBCCJ9269.pdf
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Is product S9765, Starch, soluble, partially hydrolyzed by a chemical or enzymatic process during manufacture?
1 answer-
Product S9765, Starch, soluble is a native starch preparation from potatoes and has not been chemically or enzymatically modified as indicated by our supplier.
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